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Circuit Breaker Asset Management Analytics

1: Circuit Breaker Families

1.1: FAMILY ASSIGNMENTS FOR SELECT GAS CIRCUIT BREAKERS
1.2: FAMILY ASSIGNMENTS FOR SELECT OIL CIRCUIT BREAKERS

2: Circuit Breaker Maintenance Taxonomy

3: Corrective Maintenance Requirements Based on Work Order Counts - Annual Average CM
4: Comparing Gas Call Rates of Various SF6 Circuit Breaker Models
5: Circuit Breaker Replacement Ranking
6: Performance of Newer Breakers Based on Time to First Corrective Maintenance
7: Maintenance Work Order Classification

As part of the circuit breaker asset management analytics research EPRI collects and analyzes industrywide data to develop maintenance, asset management and model specific insights. These insights help in understanding where utilities are spending maintenance dollars, which models are performance outliers and whether changes are necessary to their maintenance programs.

To support the utilities with data gathering, consolidation, curation, and organization, EPRI researchers have created the following useful tools:

Presented below are insights from analysis performed to date:

Insight 1 – Understanding breakdown of SF6 circuit breaker corrective maintenance (CM) by sub-system

Analyzing SF6 Circuit Breaker Corrective Maintenance Causes Based on CM Records from 10794 Breakers and more utilities (> 69kV) Reported over 10 Years

Gas Calls constitute 40-55% of the CM work orders for most of the utilities represented, that is, almost half of the corrective maintenance came from adding gas or fixing gas leaks.
Another observation is that for Utility B, Not Specified category accounts for about 25% of maintenance records. This is because the work order descriptions were blank or lacked sufficient information to put into a category for this utility.
In addition, Utility J’s Gas Call percentage is significantly lower than the other utilities. It’s possible that Utility J is very effective in containing gas leaks but may also be experiencing a high percentage of other maintenance issues in the Other CM category. This indicates that further exploration is needed to understand what is driving the Utility J results.
All these observations are potentially useful insights and point to avenues for further investigation.

Insight 2 – Percentage of breakers with Gas Calls To focus further on Gas Calls and breaker ages for the SF6 breakers, EPRI analyzed work orders for breakers at various ages to calculate the percentage of breakers that had at least one gas call in last 10 years and plotted with breaker age.

Percentage of breakers with at least one gas call in last 10 years vs breaker age. Analyzed 18362 SF6 breakers from 12 utilities (≥ 69kV).

Using empirical data, we can try and establish the relationship between gas call requirements and breaker age. For example, the point indicated in the chart shows that 28% of breakers at age 20 had at least one gas call in the last 10 years.
As expected, pattern shows that as breakers age, more percentage of breakers require gas call corrective maintenance.
For younger ages there are more breakers in the population analyzed, and the confidence bounds are smaller, clearly showcasing the confidence in the results. As we get into older ages, the number of breakers Inservice are less at these utilities and observe more scatter with larger confidence bounds.

Insight 3 - Comparing Gas Call Rates of Various SF6 Circuit Breaker Models Furthermore on Gas Calls, EPRI calculated the Annual Average Gas Call values of various SF6 breaker families as shown in the figure below. Annual Average Gas Call is calculated for each breaker using up to the last 10 years of maintenance history. Annual Average Gas Call is calculated by summing the gas call counts for each breaker and averaging it annually by dividing by the number of years of recorded history.

Annual Average Gas Call for breaker =
(Number of Gas Calls incurred by breaker)/ (Number of Years over which work order histories were observed)

Comparing Gas Call rates of various SF6 circuit breaker models for 8021 breakers (rated voltages = 123kV, 145kV, 170kV) from 12 utilities over 10 years.

The table includes the breaker count and the average age of the breakers by circuit breaker models.

As the plot reveals, there are significant differences in average annual gas calls among the different breaker families.
The Siemens-SPS, Siemens-TCP, GE-HVB and ABB-PA have higher annual average gas call than the other breaker models and, even though the average ages of the Siemens-SPS, Siemens-TCP, GE-HVB are similar (24, 26 and 28 years), there is a significant difference in Annual Average Gas Call values. ABB-PA has the highest value but is also the oldest family represented. HITACHI-HS and ABB-PM/PMI are younger families but incur higher Annual Average Gas Call.
This type of representation allows “apple-to-apple” comparisons of gas breaker families with a single metric, the Annual Average Gas Call.
The data can also be represented with a utility view to show which utilities have higher values in order to draw additional comparisons and inferences.

We have developed a dynamic report along similar lines that is shown below

Comparison of Annual Average Gas Calls for SF6 Breakers

The intention of the following interactive plot is to display a comparison of various SF6 circuit breaker models for a common calculated metric: Annual Average Gas Call, using the 10 year observation period. Based on the user selection for Voltage and Mechanism Stored Energy, the information for select breakers will display. There are two box plot distributions. The one on the top is the box plot distribution of Annual Average Gas Calls by breaker families and the one on the bottom is age distribution corresponding to the specific families. The table under the box plots shows the count of breakers and percentage of breakers with gas calls, for which these plots were generated. The takeaway is that this kind of representation allows comparisons among circuit breaker families, and one family across different utilities, and different families across one utility. This is an example demonstration and efforts are underway to curate and include more data from more utilities.

To interact with the plot:

Select the “1. Voltage” and “2. Mechanism Stored Energy” (By default 123, 145, 170kV and all mechanism types are selected).
Upon selection, the data appears in the plots and the table below. Moving the mouse on the plots reveal mean, median values for the breakers data based on the selection criteria. For example, the mean Annual Average Gas Call value of 1 indicate that the set of breakers included in this study on a average have 1 gas call per year per breaker. Relative comparison is possible among different breaker families. Another metric calculated is the percentage of breakers with gas calls. For example, a 50% value indicate that half of the breakers in the family have seen at least one gas call in the 10 year observation period. Thus gives an idea on the number of leaking breakers by family.
The “Display all utilities together” is a toggle button, can be used to display data from many utilities together or separately.
Additional selection is possible using “3. Breaker Family” and “4. Utility Designation” to display data from one or more utilities and families (press Ctrl to select multiple options).

1. Voltage

2. Mechanism Stored Energy

3. Breaker Family

4. Utility Designation

Display all utilities together

1 - Circuit Breaker Families

Utility circuit breaker fleets encompass a range of breaker models, mechanism types and voltage ratings. It is essential that we recognize meaningful distinctions and similarities among circuit breakers. This recognition led to the conceptualization and development of circuit breaker families.

Circuit breaker families are groups of breaker models or types of a similar design from a specific manufacturer with similar performance expectations.

Some of the characteristics that members of a breaker family share include:

An operating mechanism or design platform
Features or components that impact reliability, maintenance requirements
An expected service life
A common strategy for maintenance

Family classifications are used to explore performance differences among groups of breakers and to generalize preventive maintenance (PM) and corrective maintenance (CM) requirements for sets of circuit breakers with common features of design, operation, and wear. The following links include EPRI’s current list of circuit breaker families for high voltage gas and oil circuit breakers. Families are under development for vacuum breakers.

1.1 - FAMILY ASSIGNMENTS FOR SELECT GAS CIRCUIT BREAKERS

Rated Voltage (kV)	Manufacturer	Breaker Model	Mechanism Model	Mechanism Model Type	Tank Type	EPRI Breaker Family Number	EPRI Breaker Family Name
72.5	MITSUBISHI	70-SFMT-50HF	BM-2	Spring	Dead	G101	GAS-MITS-70-SFMT-BM-SPR
72.5	MITSUBISHI	70-SFMT-40SHE	BH-3.1	Spring	Dead	G101	GAS-MITS-70-SFMT-BM-SPR
123	MITSUBISHI	100-SFMT-32LE	BM-1	Spring	Dead	G102	GAS-MITS-100/120/140-SFMT-BM-SPR
145	MITSUBISHI	120-SFMT-32LE	BM-1	Spring	Dead	G102	GAS-MITS-100/120/140-SFMT-BM-SPR
145	MITSUBISHI	120-SFMT-32LHE-1	BM-1	Spring	Dead	G102	GAS-MITS-100/120/140-SFMT-BM-SPR
145	MITSUBISHI	120-SFMT-32LSHE	BH-3.1	Spring	Dead	G102	GAS-MITS-100/120/140-SFMT-BM-SPR
145	MITSUBISHI	120-SFMT-40B	BM-2	Spring	Dead	G102	GAS-MITS-100/120/140-SFMT-BM-SPR
145	MITSUBISHI	120-SFMT-40HE	BM-1	Spring	Dead	G102	GAS-MITS-100/120/140-SFMT-BM-SPR
145	MITSUBISHI	120-SFMT-40SHE	BH-3.1	Spring	Dead	G102	GAS-MITS-100/120/140-SFMT-BM-SPR
145	MITSUBISHI	120-SFMT-50HF	BM-2	Spring	Dead	G102	GAS-MITS-100/120/140-SFMT-BM-SPR
145	MITSUBISHI	120-SFMT-63HF	BM-2	Spring	Dead	G102	GAS-MITS-100/120/140-SFMT-BM-SPR
170	MITSUBISHI	140-SFMT-40SGHE	BH-3.1	Spring	Dead	G102	GAS-MITS-100/120/140-SFMT-BM-SPR
245	MITSUBISHI	200-SFMT-40HE	BM-2	Spring	Dead	G103	GAS-MITS-200-SFMT-BM-SPR
245	MITSUBISHI	200-SFMT-63HF	BM-2	Spring	Dead	G103	GAS-MITS-200-SFMT-BM-SPR
362	MITSUBISHI	300-SFMT-50HE	BM-2	Spring	Dead	G104	GAS-MITS-300-SFMT-BM-SPR
362	MITSUBISHI	300-SFMT-50SHE	BM-2	Spring	Dead	G104	GAS-MITS-300-SFMT-BM-SPR
362	MITSUBISHI	300-SFMT-63HE	BM-2	Spring	Dead	G104	GAS-MITS-300-SFMT-BM-SPR
245	MITSUBISHI	200-SFMT-40B	AM	Pneumatic	Dead	G105	GAS-MITS-200-SFMT-AM-PNE
245	MITSUBISHI	200-SFMT-50B	AM	Pneumatic	Dead	G105	GAS-MITS-200-SFMT-AM-PNE
245	MITSUBISHI	200-SFMT-63B	AM	Pneumatic	Dead	G105	GAS-MITS-200-SFMT-AM-PNE
362	MITSUBISHI	300-SFMT-40B	AM	Pneumatic	Dead	G106	GAS-MITS-300-SFMT-AM-PNE
362	MITSUBISHI	300-SFMT-50B	AM	Pneumatic	Dead	G106	GAS-MITS-300-SFMT-AM-PNE
550	MITSUBISHI	500-SFMT-50E	AM	Pneumatic	Dead	G107	GAS-MITS-500-SFMT-AM-PNE
550	MITSUBISHI	500-SFMT-63E	AM	Pneumatic	Dead	G107	GAS-MITS-500-SFMT-AM-PNE
123	MITSUBISHI	100-SFMT-40B	AM	Pneumatic	Dead	G108	GAS-MITS-100/120/140-SFMT-AM-PNE
145	MITSUBISHI	120-SFMT-32LE	AM	Pneumatic	Dead	G108	GAS-MITS-100/120/140-SFMT-AM-PNE
145	MITSUBISHI	120-SFMT-40B-2000A	AM	Pneumatic	Dead	G108	GAS-MITS-100/120/140-SFMT-AM-PNE
170	GOULD/ITE	169-GA80-30D	PG-10A	Pneumatic		G110	GAS-GOULD-GA-PG-PNE
245	GOULD/ITE	242-GA40-20C	PG-32B	Pneumatic		G110	GAS-GOULD-GA-PG-PNE
362	GOULD/ITE	362-GA40-20C	PG-32B	Pneumatic		G110	GAS-GOULD-GA-PG-PNE
362	GOULD/ITE	362-GA40-20C	PG-14	Pneumatic		G110	GAS-GOULD-GA-PG-PNE
550	GOULD/ITE	550-GA40-20C	PG-10	Pneumatic		G110	GAS-GOULD-GA-PG-PNE
48.3	SIEMENS	SP-48.3	SA-7	Pneumatic	Dead	G111	GAS-SIEM-SP-48/72-SA7-PNE
72.5	SIEMENS	SP-72.5	SA-7	Pneumatic	Dead	G111	GAS-SIEM-SP-48/72-SA7-PNE
145	SIEMENS	SPA-145	SA-7	Pneumatic	Dead	G112	GAS-SIEM-SPA-145/169-SA7-PNE
170	SIEMENS	SPA-169	SA-7	Pneumatic	Dead	G112	GAS-SIEM-SPA-145/169-SA7-PNE
48.3	SIEMENS	SPS-48.3-40-1	SPS-SE	Spring	Dead	G113	GAS-SIEM-SPS-48/72-SPSSE-SPR
72.5	SIEMENS	SPS-72.5-23-1	SPS-SE	Spring	Dead	G113	GAS-SIEM-SPS-48/72-SPSSE-SPR
72.5	SIEMENS	SPS-72.5-31.5-1	SPS-SE4	Spring	Dead	G113	GAS-SIEM-SPS-48/72-SPSSE-SPR
121	SIEMENS	SPS-121-40-2000	SPS-SE4	Spring	Dead	G114	GAS-SIEM-SPS-121/145-SPSSE-SPR
145	SIEMENS	SPS-145-40-2000	SPS-SE	Spring	Dead	G114	GAS-SIEM-SPS-121/145-SPSSE-SPR
145	SIEMENS	SPS-145-63-2000	SPS-SE	Spring	Dead	G114	GAS-SIEM-SPS-121/145-SPSSE-SPR
48.3	SIEMENS	SPS2-48.3-40	FA2.20	Spring	Dead	G115	GAS-SIEM-SPS2-48/72-FA-SPR
72.5	SIEMENS	SPS2-72.5-20	FA2.20	Spring	Dead	G115	GAS-SIEM-SPS2-48/72-FA-SPR
72.5	SIEMENS	SPS2-72.5-31.5	FA2.20	Spring	Dead	G115	GAS-SIEM-SPS2-48/72-FA-SPR
72.5	SIEMENS	SPS2-72.5-40	FA2.20	Spring	Dead	G115	GAS-SIEM-SPS2-48/72-FA-SPR
123	SIEMENS	SPS2-123-20	FA2.20	Spring	Dead	G116	GAS-SIEM-SPS2-123/145/170-FA-SPR
123	SIEMENS	SPS2-123-31.5	FA2.20	Spring	Dead	G116	GAS-SIEM-SPS2-123/145/170-FA-SPR
123	SIEMENS	SPS2-123-40	FA2.20	Spring	Dead	G116	GAS-SIEM-SPS2-123/145/170-FA-SPR
123	SIEMENS	SPS2-123-50	FA2.20	Spring	Dead	G116	GAS-SIEM-SPS2-123/145/170-FA-SPR
123	SIEMENS	SPS2-123-63	FA2.20	Spring	Dead	G116	GAS-SIEM-SPS2-123/145/170-FA-SPR
145	SIEMENS	SPS2-145-20	FA2.20	Spring	Dead	G116	GAS-SIEM-SPS2-123/145/170-FA-SPR
145	SIEMENS	SPS2-145-31.5	FA2.20	Spring	Dead	G116	GAS-SIEM-SPS2-123/145/170-FA-SPR
145	SIEMENS	SPS2-145-40	FA2.20	Spring	Dead	G116	GAS-SIEM-SPS2-123/145/170-FA-SPR
145	SIEMENS	SPS2-145-50	FA2.20	Spring	Dead	G116	GAS-SIEM-SPS2-123/145/170-FA-SPR
145	SIEMENS	SPS2-145-63	FA2.20	Spring	Dead	G116	GAS-SIEM-SPS2-123/145/170-FA-SPR
170	SIEMENS	SPS2-170-20	FA2.20	Spring	Dead	G116	GAS-SIEM-SPS2-123/145/170-FA-SPR
170	SIEMENS	SPS2-170-31.5	FA2.20	Spring	Dead	G116	GAS-SIEM-SPS2-123/145/170-FA-SPR
170	SIEMENS	SPS2-170-40	FA2.20	Spring	Dead	G116	GAS-SIEM-SPS2-123/145/170-FA-SPR
170	SIEMENS	SPS2-170-50	FA2.20	Spring	Dead	G116	GAS-SIEM-SPS2-123/145/170-FA-SPR
170	SIEMENS	SPS2-170-63	FA2.20	Spring	Dead	G116	GAS-SIEM-SPS2-123/145/170-FA-SPR
245	SIEMENS	SPS2-245-20	FA	Spring	Dead	G117	GAS-SIEM-SPS2-245-FA-SPR
245	SIEMENS	SPS2-245-31.5	FA	Spring	Dead	G117	GAS-SIEM-SPS2-245-FA-SPR
245	SIEMENS	SPS2-245-40	FA	Spring	Dead	G117	GAS-SIEM-SPS2-245-FA-SPR
245	SIEMENS	SPS2-245-50	FA	Spring	Dead	G117	GAS-SIEM-SPS2-245-FA-SPR
245	SIEMENS	SPS2-245-63	FA	Spring	Dead	G117	GAS-SIEM-SPS2-245-FA-SPR
362	SIEMENS	SPS2-362-20	FA	Spring	Dead	G118	GAS-SIEM-SPS2-362-FA-SPR
362	SIEMENS	SPS2-362-31.5	FA	Spring	Dead	G118	GAS-SIEM-SPS2-362-FA-SPR
362	SIEMENS	SPS2-362-40	FA	Spring	Dead	G118	GAS-SIEM-SPS2-362-FA-SPR
362	SIEMENS	SPS2-362-50	FA	Spring	Dead	G118	GAS-SIEM-SPS2-362-FA-SPR
362	SIEMENS	SPS2-362-63	FA	Spring	Dead	G118	GAS-SIEM-SPS2-362-FA-SPR
550	SIEMENS	SPS2-550-20	FA	Spring	Dead	G119	GAS-SIEM-SPS2-550-FA-SPR
550	SIEMENS	SPS2-550-31.5	FA	Spring	Dead	G119	GAS-SIEM-SPS2-550-FA-SPR
550	SIEMENS	SPS2-550-40	FA	Spring	Dead	G119	GAS-SIEM-SPS2-550-FA-SPR
550	SIEMENS	SPS2-550-50	FA	Spring	Dead	G119	GAS-SIEM-SPS2-550-FA-SPR
550	SIEMENS	SPS2-550-63	FA	Spring	Dead	G119	GAS-SIEM-SPS2-550-FA-SPR
245	SIEMENSALLIS	LPO-242	PH	Pneudraulic	Live	G120	GAS-SIEM-LPO-242-PH-PNED
362	SIEMENSALLIS	LPO-362	PH	Pneudraulic	Live	G121	GAS-SIEM-LPO-362-PH-PNED
550	SIEMENSALLIS	LPO-550	PH	Pneudraulic	Live	G121a	GAS-SIEM-LPO-550-PH-PNED
123	SIEMENS	TCP-121	PH-30	Pneudraulic	Dead	G122	GAS-SIEM-TCP-121/145-PH-PNED
145	SIEMENS	TCP-145	PH-30	Pneudraulic	Dead	G122	GAS-SIEM-TCP-121/145-PH-PNED
245	SIEMENS	TCP-242	PH-30	Pneudraulic	Dead	G123	GAS-SIEM-TCP-242-PH-PNED
72.5	HICO	HCSP		Spring	Dead	G126	GAS-HICO-HCSP-72-PNE
362	HICO	362 HCBP 63		Pneumatic	Dead	G127	GAS-HICO-HCBP-362-PNE
800	HICO			Pneumatic	Dead	G128	GAS-HICO-HCBP-800-PNE
800	ALSTOM/AREVA/GE	GL318	FK3-5	Spring	Live	G130	GAS-ALS/ARE-GL318-FK3-SPR
800	ALSTOM/AREVA/GE	GL318D	FK3-5	Spring	Live	G130	GAS-ALS/ARE-GL318-FK3-SPR
800	ALSTOM/AREVA/GE	GL318X	FK3-5	Spring	Live	G130	GAS-ALS/ARE-GL318-FK3-SPR
800	ALSTOM/AREVA/GE	GL318XD	FK3-5	Spring	Live	G130	GAS-ALS/ARE-GL318-FK3-SPR
72.5	GE	DT1-72.5F1 FK	FK3	Spring	Dead	G131	GAS-GE-DT1-72-FK3-SPR
72.5	GE	DT1-72.5F3 FK	FK3	Spring	Dead	G131	GAS-GE-DT1-72-FK3-SPR
123	GE	DT1-123 F1 FK	FK3	Spring	Dead	G132	GAS-GE-DT1-123/145/170-FK3-SPR
145	GE	DT1-145F1	FK3	Spring	Dead	G132	GAS-GE-DT1-123/145/170-FK3-SPR
170	GE	DT1-170F1	FK3	Spring	Dead	G132	GAS-GE-DT1-123/145/170-FK3-SPR
123	GE	DT1-123 F3 FK	FK3	Spring	Dead	G132	GAS-GE-DT1-123/145/170-FK3-SPR
145	GE	DT1-145F3 FK	FK3	Spring	Dead	G132	GAS-GE-DT1-123/145/170-FK3-SPR
170	GE	DT1-170F3 FK	FK3	Spring	Dead	G132	GAS-GE-DT1-123/145/170-FK3-SPR
245	GE	DT1-245P F1 FK	FK3	Spring	Dead	G133	GAS-GE-DT1-245-FK3-SPR
245	GE	DT1-245 F3 FK	FK3	Spring	Dead	G133	GAS-GE-DT1-245-FK3-SPR
362	GE	DT1-362	FK3	Spring	Dead	G134	GAS-GE-DT1-362-FK3-SPR
550	GE	DT2-550	FK3	Spring	Dead	G135	GAS-GE-DT2-550-FK3-SPR
72.5	GE/ALSTOM/AREVA	DT1-72.5F1	CRR4	Spring	Dead	G136	GAS-GE/ALS/ARE-DT1-72-CRR-SPR
72.5	GE/ALSTOM/AREVA	DT1-72.5F1	CRR4-5	Spring	Dead	G136	GAS-GE/ALS/ARE-DT1-72-CRR-SPR
123	GE/ALSTOM/AREVA	DT1-123F1	CRR5-4E	Spring	Dead	G137	GAS-GE-DT1-123/145/170-CRR-SPR
145	GE/ALSTOM/AREVA/AEG	DT1-145F1	CRR5-4E	Spring	Dead	G137	GAS-GE-DT1-123/145/170-CRR-SPR
170	GE/ALSTOM/AREVA/AEG	DT1-170F1	CRR5-4E	Spring	Dead	G137	GAS-GE-DT1-123/145/170-CRR-SPR
145	AREVA/ALSTOM	HGF 1012	FKF2-9	Spring	Dead	G138	GAS-ALS/ARE-HGF1012-145-FKF-SPR
245	AREVA/ALSTOM	HGF 1014	FKF2-9	Spring	Dead	G139	GAS-ALS/ARE-HGF1014-245-FKF-SPR
72.5	GE/SPRECHERE	HGF-309	FKF 1-2	Spring	Live	G141	GAS-GE/SPR-HGF309-72-FKF-SPR
145	GE/SPRECHERE	HGF-112/1C	FKF 2-6	Spring	Live	G142	GAS-GE/SPR-HGF112-145-FKF-SPR
72.5	AEG/ALSTOM	S1-72.5	CRR3	Spring	Dead	G143	GAS-AEG/ALS-S1-72-CRR-SPR
145	AEG/ALSTOM	S1-145	CRR5-4B	Spring	Dead	G144	GAS-AEG/ALS-S1-138/145-CRR-SPR
145	AEG/ALSTOM	S1-138	CRR5-4B	Spring	Dead	G144	GAS-AEG/ALS-S1-138/145-CRR-SPR
121	HITACHI/HVB	HVB-121-40000	MPR	Pneumatic	Dead	G145	GAS-GE/HIT/HVB-HVB-121/145/169-MPR-PNE
145	HITACHI/HVB	HVB-145-40000	MPR-3	Pneumatic	Dead	G145	GAS-GE/HIT/HVB-HVB-121/145/169-MPR-PNE
170	GE/HITACHI/HVB	HVB-169-40000	MPR-3	Pneumatic	Dead	G145	GAS-GE/HIT/HVB-HVB-121/145/169-MPR-PNE
362	GE/HITACHI/HVB	HVB-362-40000	MPR-2-1	Pneumatic	Dead	G146	GAS-GE/HIT/HVB-HVB-362-MPR-PNE
362	GE/HITACHI/HVB	HVB-362-50000	MPR-2-1	Pneumatic	Dead	G146	GAS-GE/HIT/HVB-HVB-362-MPR-PNE
362	GE/HITACHI/HVB	HVB-362-40000-H		Hydraulic	Dead	G146a	GAS-GE/HIT/HVB-HVB-362-HYD
245	GE/HITACHI/HVB	HVB-242-40000	MPR-3	Pneumatic	Dead	G147	GAS-GE/HIT/HVB-HVB-242-MPR-PNE
245	GE/HITACHI/HVB	HVB-242-50000	MPR-3	Pneumatic	Dead	G147	GAS-GE/HIT/HVB-HVB-242-MPR-PNE
245	GE/HITACHI/HVB	HVB-242-63000	MPR-3	Pneumatic	Dead	G147	GAS-GE/HIT/HVB-HVB-242-MPR-PNE
550	GE/HITACHI/HVB	HVB-550-40000	MPR 4-1	Pneumatic	Dead	G148	GAS-GE/HIT/HVB-HVB-550-MPR-PNE
550	GE/HITACHI/HVB	HVB-550-63000		Hydraulic	Dead	G148a	GAS-GE/HIT/HVB-HVB-550-HYD
245	GE/AREVA	DT1-245 H1	HDS ATC 63/28-156	Hydraulic	Dead	G149	GAS-GE/ARE-DT1-245-HDS ATC-HYD
123	HICO	HCSP-124B	SOM-300	Spring		G150	GAS-HICO-HCSP-124B/144B-SOM-SPR
145	HICO	HCSP-144B	SOM-300	Spring		G150	GAS-HICO-HCSP-124B/144B-SOM-SPR
38	ABB	38PM31-12	FSA-2	Spring	Dead	G151	GAS-ABB-PM-38/48/72-FSA2-SPR
38	ABB	38PM31-20	FSA-2	Spring	Dead	G151	GAS-ABB-PM-38/48/72-FSA2-SPR
38	ABB	38PM31-30	FSA-2	Spring	Dead	G151	GAS-ABB-PM-38/48/72-FSA2-SPR
38	ABB	38PM40-12	FSA-2	Spring	Dead	G151	GAS-ABB-PM-38/48/72-FSA2-SPR
38	ABB	38PM40-20	FSA-2	Spring	Dead	G151	GAS-ABB-PM-38/48/72-FSA2-SPR
38	ABB	38PM40-30	FSA-2	Spring	Dead	G151	GAS-ABB-PM-38/48/72-FSA2-SPR
48.3	ABB	48PM31-12	FSA-2	Spring	Dead	G151	GAS-ABB-PM-38/48/72-FSA2-SPR
48.3	ABB	48PM31-20	FSA-2	Spring	Dead	G151	GAS-ABB-PM-38/48/72-FSA2-SPR
48.3	ABB	48PM31-30	FSA-2	Spring	Dead	G151	GAS-ABB-PM-38/48/72-FSA2-SPR
48.3	ABB	48PM40-12	FSA-2	Spring	Dead	G151	GAS-ABB-PM-38/48/72-FSA2-SPR
48.3	ABB	48PM40-20	FSA-2	Spring	Dead	G151	GAS-ABB-PM-38/48/72-FSA2-SPR
48.3	ABB	48PM40-30	FSA-2	Spring	Dead	G151	GAS-ABB-PM-38/48/72-FSA2-SPR
72.5	ABB	72PM31-12	FSA-2	Spring	Dead	G151	GAS-ABB-PM-38/48/72-FSA2-SPR
72.5	ABB	72PM31-20	FSA-2	Spring	Dead	G151	GAS-ABB-PM-38/48/72-FSA2-SPR
72.5	ABB	72PM31-30	FSA-2	Spring	Dead	G151	GAS-ABB-PM-38/48/72-FSA2-SPR
72.5	ABB	72PM40-12	FSA-2	Spring	Dead	G151	GAS-ABB-PM-38/48/72-FSA2-SPR
72.5	ABB	72PM40-20	FSA-2	Spring	Dead	G151	GAS-ABB-PM-38/48/72-FSA2-SPR
72.5	ABB	72PM40-30	FSA-2	Spring	Dead	G151	GAS-ABB-PM-38/48/72-FSA2-SPR
38	ABB	38PMI31-12	HMB-1	Hydraulic	Dead	G152	GAS-ABB-PMI-38/48/72-HMB-HYD
38	ABB	38PMI31-20	HMB-1	Hydraulic	Dead	G152	GAS-ABB-PMI-38/48/72-HMB-HYD
38	ABB	38PMI31-30	HMB-1	Hydraulic	Dead	G152	GAS-ABB-PMI-38/48/72-HMB-HYD
38	ABB	38PMI40-12	HMB-1	Hydraulic	Dead	G152	GAS-ABB-PMI-38/48/72-HMB-HYD
38	ABB	38PMI40-20	HMB-1	Hydraulic	Dead	G152	GAS-ABB-PMI-38/48/72-HMB-HYD
38	ABB	38PMI40-30	HMB-1	Hydraulic	Dead	G152	GAS-ABB-PMI-38/48/72-HMB-HYD
48.3	ABB	48PMI31-12	HMB-1	Hydraulic	Dead	G152	GAS-ABB-PMI-38/48/72-HMB-HYD
48.3	ABB	48PMI31-20	HMB-1	Hydraulic	Dead	G152	GAS-ABB-PMI-38/48/72-HMB-HYD
48.3	ABB	48PMI31-30	HMB-1	Hydraulic	Dead	G152	GAS-ABB-PMI-38/48/72-HMB-HYD
48.3	ABB	48PMI40-12	HMB-1	Hydraulic	Dead	G152	GAS-ABB-PMI-38/48/72-HMB-HYD
48.3	ABB	48PMI40-20	HMB-1	Hydraulic	Dead	G152	GAS-ABB-PMI-38/48/72-HMB-HYD
48.3	ABB	48PMI40-30	HMB-1	Hydraulic	Dead	G152	GAS-ABB-PMI-38/48/72-HMB-HYD
72.5	ABB	72PMI31-12	HMB-1	Hydraulic	Dead	G152	GAS-ABB-PMI-38/48/72-HMB-HYD
72.5	ABB	72PMI31-20	HMB-1	Hydraulic	Dead	G152	GAS-ABB-PMI-38/48/72-HMB-HYD
72.5	ABB	72PMI31-30	HMB-1	Hydraulic	Dead	G152	GAS-ABB-PMI-38/48/72-HMB-HYD
72.5	ABB	72PMI40-12	HMB-1	Hydraulic	Dead	G152	GAS-ABB-PMI-38/48/72-HMB-HYD
72.5	ABB	72PMI40-20	HMB-1	Hydraulic	Dead	G152	GAS-ABB-PMI-38/48/72-HMB-HYD
72.5	ABB	72PMI40-30	HMB-1	Hydraulic	Dead	G152	GAS-ABB-PMI-38/48/72-HMB-HYD
72.5	ABB	72PMI63-30	HMB-1	Hydraulic	Dead	G152	GAS-ABB-PMI-38/48/72-HMB-HYD
72.5	ABB	72PMI63-30B	HMB-1	Hydraulic	Dead	G152	GAS-ABB-PMI-38/48/72-HMB-HYD
72.5	ABB	72PMI63-40B	HMB-1	Hydraulic	Dead	G152	GAS-ABB-PMI-38/48/72-HMB-HYD
72.5	ABB	72PM40-C	MSD1	Spring	Dead	G153	GAS-ABB-PM-72-MSD-SPR
72.5	ABB	72PM40-20B	BLK-222	Spring	Dead	G153a	GAS-ABB-PM-72-BLK-SPR
72.5	ABB	72PM40-30B	BLK-222	Spring	Dead	G153a	GAS-ABB-PM-72-BLK-SPR
123	ABB	121PM40-12	FSA-2	Spring	Dead	G154	GAS-ABB-PM-121/145/169-FSA2-SPR
123	ABB	121PM40-16	FSA-2	Spring	Dead	G154	GAS-ABB-PM-121/145/169-FSA2-SPR
123	ABB	121PM40-20	FSA-2	Spring	Dead	G154	GAS-ABB-PM-121/145/169-FSA2-SPR
123	ABB	121PM40-30	FSA-2	Spring	Dead	G154	GAS-ABB-PM-121/145/169-FSA2-SPR
123	ABB	121PM40-40	FSA-2	Spring	Dead	G154	GAS-ABB-PM-121/145/169-FSA2-SPR
145	ABB	145PM40-20	FSA-2	Spring	Dead	G154	GAS-ABB-PM-121/145/169-FSA2-SPR
145	ABB	145PM40-30	FSA-2	Spring	Dead	G154	GAS-ABB-PM-121/145/169-FSA2-SPR
145	ABB	145PM40-40	FSA-2	Spring	Dead	G154	GAS-ABB-PM-121/145/169-FSA2-SPR
170	ABB	169PM40-20	FSA-2	Spring	Dead	G154	GAS-ABB-PM-121/145/169-FSA2-SPR
170	ABB	169PM40-30	FSA-2	Spring	Dead	G154	GAS-ABB-PM-121/145/169-FSA2-SPR
170	ABB	169PM40-40	FSA-2	Spring	Dead	G154	GAS-ABB-PM-121/145/169-FSA2-SPR
123	ABB	121PM50-20	HMB-1.5	Hydraulic	Dead	G155	GAS-ABB-PM-121/145/169-HMB-HYD
123	ABB	121PM50-30	HMB-1.5	Hydraulic	Dead	G155	GAS-ABB-PM-121/145/169-HMB-HYD
123	ABB	121PM50-40	HMB-1.5	Hydraulic	Dead	G155	GAS-ABB-PM-121/145/169-HMB-HYD
123	ABB	121PM63-20	HMB-1.5	Hydraulic	Dead	G155	GAS-ABB-PM-121/145/169-HMB-HYD
123	ABB	121PM63-30	HMB-1.5	Hydraulic	Dead	G155	GAS-ABB-PM-121/145/169-HMB-HYD
123	ABB	121PM63-40	HMB-1.5	Hydraulic	Dead	G155	GAS-ABB-PM-121/145/169-HMB-HYD
145	ABB	145PM50-20	HMB-1.5	Hydraulic	Dead	G155	GAS-ABB-PM-121/145/169-HMB-HYD
145	ABB	145PM50-30	HMB-1.5	Hydraulic	Dead	G155	GAS-ABB-PM-121/145/169-HMB-HYD
145	ABB	145PM50-40	HMB-1.5	Hydraulic	Dead	G155	GAS-ABB-PM-121/145/169-HMB-HYD
145	ABB	145PM63-20	HMB-1.5	Hydraulic	Dead	G155	GAS-ABB-PM-121/145/169-HMB-HYD
145	ABB	145PM63-30	HMB-1.5	Hydraulic	Dead	G155	GAS-ABB-PM-121/145/169-HMB-HYD
145	ABB	145PM63-40	HMB-1.5	Hydraulic	Dead	G155	GAS-ABB-PM-121/145/169-HMB-HYD
170	ABB	169PM50-20	HMB-1.5	Hydraulic	Dead	G155	GAS-ABB-PM-121/145/169-HMB-HYD
170	ABB	169PM50-30	HMB-1.5	Hydraulic	Dead	G155	GAS-ABB-PM-121/145/169-HMB-HYD
170	ABB	169PM50-40	HMB-1.5	Hydraulic	Dead	G155	GAS-ABB-PM-121/145/169-HMB-HYD
123	ABB	123PM50-20B	HMB-2	Hydraulic	Dead	G155	GAS-ABB-PM-121/145/169-HMB-HYD
123	ABB	123PM50-30B	HMB-2	Hydraulic	Dead	G155	GAS-ABB-PM-121/145/169-HMB-HYD
123	ABB	123PM63-20B	HMB-2	Hydraulic	Dead	G155	GAS-ABB-PM-121/145/169-HMB-HYD
123	ABB	123PM63-30B	HMB-2	Hydraulic	Dead	G155	GAS-ABB-PM-121/145/169-HMB-HYD
145	ABB	145PM50-20B	HMB-2	Hydraulic	Dead	G155	GAS-ABB-PM-121/145/169-HMB-HYD
145	ABB	145PM50-30B	HMB-2	Hydraulic	Dead	G155	GAS-ABB-PM-121/145/169-HMB-HYD
145	ABB	145PM63-20B	HMB-2	Hydraulic	Dead	G155	GAS-ABB-PM-121/145/169-HMB-HYD
145	ABB	145PM63-30B	HMB-2	Hydraulic	Dead	G155	GAS-ABB-PM-121/145/169-HMB-HYD
123	ABB	123PM40-20B	BLK-222	Spring	Dead	G156	GAS-ABB-PM-121/145/169-BLK-SPR
123	ABB	123PM40-30B	BLK-222	Spring	Dead	G156	GAS-ABB-PM-121/145/169-BLK-SPR
145	ABB	145PM40-20B	BLK-222	Spring	Dead	G156	GAS-ABB-PM-121/145/169-BLK-SPR
145	ABB	145PM40-30B	BLK-222	Spring	Dead	G156	GAS-ABB-PM-121/145/169-BLK-SPR
170	ABB	170PM40-20B	BLK-222	Spring	Dead	G156	GAS-ABB-PM-121/145/169-BLK-SPR
170	ABB	170PM40-30B	BLK-222	Spring	Dead	G156	GAS-ABB-PM-121/145/169-BLK-SPR
121	ABB	121PMI40-20	HMB-1	Hydraulic	Dead	G157	GAS-ABB-PMI-121/145/169-HMB-HYD
121	ABB	121PMI40-30	HMB-1	Hydraulic	Dead	G157	GAS-ABB-PMI-121/145/169-HMB-HYD
121	ABB	121PMI40-40	HMB-1	Hydraulic	Dead	G157	GAS-ABB-PMI-121/145/169-HMB-HYD
121	ABB	121PMI50-20	HMB-1	Hydraulic	Dead	G157	GAS-ABB-PMI-121/145/169-HMB-HYD
121	ABB	121PMI50-30	HMB-1	Hydraulic	Dead	G157	GAS-ABB-PMI-121/145/169-HMB-HYD
121	ABB	121PMI50-40	HMB-1	Hydraulic	Dead	G157	GAS-ABB-PMI-121/145/169-HMB-HYD
121	ABB	121PMI63-20	HMB-1	Hydraulic	Dead	G157	GAS-ABB-PMI-121/145/169-HMB-HYD
121	ABB	121PMI63-30	HMB-1	Hydraulic	Dead	G157	GAS-ABB-PMI-121/145/169-HMB-HYD
121	ABB	121PMI63-40	HMB-1	Hydraulic	Dead	G157	GAS-ABB-PMI-121/145/169-HMB-HYD
145	ABB	145PMI40-20	HMB-1	Hydraulic	Dead	G157	GAS-ABB-PMI-121/145/169-HMB-HYD
145	ABB	145PMI40-30	HMB-1	Hydraulic	Dead	G157	GAS-ABB-PMI-121/145/169-HMB-HYD
145	ABB	145PMI40-40	HMB-1	Hydraulic	Dead	G157	GAS-ABB-PMI-121/145/169-HMB-HYD
145	ABB	145PMI50-20	HMB-1	Hydraulic	Dead	G157	GAS-ABB-PMI-121/145/169-HMB-HYD
145	ABB	145PMI50-30	HMB-1	Hydraulic	Dead	G157	GAS-ABB-PMI-121/145/169-HMB-HYD
145	ABB	145PMI50-40	HMB-1	Hydraulic	Dead	G157	GAS-ABB-PMI-121/145/169-HMB-HYD
145	ABB	145PMI63-20	HMB-1	Hydraulic	Dead	G157	GAS-ABB-PMI-121/145/169-HMB-HYD
145	ABB	145PMI63-30	HMB-1	Hydraulic	Dead	G157	GAS-ABB-PMI-121/145/169-HMB-HYD
145	ABB	145PMI63-40	HMB-1	Hydraulic	Dead	G157	GAS-ABB-PMI-121/145/169-HMB-HYD
170	ABB	169PMI40-20	HMB-1	Hydraulic	Dead	G157	GAS-ABB-PMI-121/145/169-HMB-HYD
170	ABB	169PMI40-30	HMB-1	Hydraulic	Dead	G157	GAS-ABB-PMI-121/145/169-HMB-HYD
170	ABB	169PMI40-40	HMB-1	Hydraulic	Dead	G157	GAS-ABB-PMI-121/145/169-HMB-HYD
170	ABB	169PMI50-20	HMB-1	Hydraulic	Dead	G157	GAS-ABB-PMI-121/145/169-HMB-HYD
170	ABB	169PMI50-30	HMB-1	Hydraulic	Dead	G157	GAS-ABB-PMI-121/145/169-HMB-HYD
170	ABB	169PMI50-40	HMB-1	Hydraulic	Dead	G157	GAS-ABB-PMI-121/145/169-HMB-HYD
145	ABB	145PM40-C	MSD	Spring	Dead	G158	GAS-ABB-PM-121/145/169-MSD-SPR
245	ABB	242PMI40-20	HMB-4	Hydraulic	Dead	G159	GAS-ABB-PMI-245-HMB-HYD
245	ABB	242PMI40-30	HMB-4	Hydraulic	Dead	G159	GAS-ABB-PMI-245-HMB-HYD
245	ABB	242PMI40-40	HMB-4	Hydraulic	Dead	G159	GAS-ABB-PMI-245-HMB-HYD
245	ABB	242PMI40-50	HMB-4	Hydraulic	Dead	G159	GAS-ABB-PMI-245-HMB-HYD
245	ABB	242PMI50-20	HMB-4	Hydraulic	Dead	G159	GAS-ABB-PMI-245-HMB-HYD
245	ABB	242PMI50-30	HMB-4	Hydraulic	Dead	G159	GAS-ABB-PMI-245-HMB-HYD
245	ABB	242PMI50-40	HMB-4	Hydraulic	Dead	G159	GAS-ABB-PMI-245-HMB-HYD
245	ABB	242PMI50-50	HMB-4	Hydraulic	Dead	G159	GAS-ABB-PMI-245-HMB-HYD
245	ABB	242PMI63-20	HMB-4	Hydraulic	Dead	G159	GAS-ABB-PMI-245-HMB-HYD
245	ABB	242PMI63-30	HMB-4	Hydraulic	Dead	G159	GAS-ABB-PMI-245-HMB-HYD
245	ABB	242PMI63-40	HMB-4	Hydraulic	Dead	G159	GAS-ABB-PMI-245-HMB-HYD
245	ABB	242PMI63-50	HMB-4	Hydraulic	Dead	G159	GAS-ABB-PMI-245-HMB-HYD
245	ABB	242PMI80-20	HMB-4	Hydraulic	Dead	G159	GAS-ABB-PMI-245-HMB-HYD
245	ABB	242PMI80-30	HMB-4	Hydraulic	Dead	G159	GAS-ABB-PMI-245-HMB-HYD
245	ABB	242PMI80-40	HMB-4	Hydraulic	Dead	G159	GAS-ABB-PMI-245-HMB-HYD
245	ABB	242PMI80-50	HMB-4	Hydraulic	Dead	G159	GAS-ABB-PMI-245-HMB-HYD
245	ABB	245PMI40-20B	HMB-4	Hydraulic	Dead	G159	GAS-ABB-PMI-245-HMB-HYD
245	ABB	245PMI40-30B	HMB-4	Hydraulic	Dead	G159	GAS-ABB-PMI-245-HMB-HYD
245	ABB	245PMI40-40B	HMB-4	Hydraulic	Dead	G159	GAS-ABB-PMI-245-HMB-HYD
245	ABB	245PMI50-20B	HMB-4	Hydraulic	Dead	G159	GAS-ABB-PMI-245-HMB-HYD
245	ABB	245PMI50-30B	HMB-4	Hydraulic	Dead	G159	GAS-ABB-PMI-245-HMB-HYD
245	ABB	245PMI50-40B	HMB-4	Hydraulic	Dead	G159	GAS-ABB-PMI-245-HMB-HYD
245	ABB	245PMI63-20B	HMB-4	Hydraulic	Dead	G159	GAS-ABB-PMI-245-HMB-HYD
245	ABB	245PMI63-30B	HMB-4	Hydraulic	Dead	G159	GAS-ABB-PMI-245-HMB-HYD
245	ABB	245PMI63-40B	HMB-4	Hydraulic	Dead	G159	GAS-ABB-PMI-245-HMB-HYD
245	ABB	245PMI90	HMB-4.2	Hydraulic	Dead	G159	GAS-ABB-PMI-245-HMB-HYD
245	ABB	242PMR40-20	HMB-1.8	Hydraulic	Dead	G160	GAS-ABB-PMR-245-HMB-HYD
245	ABB	242PMR40-30	HMB-1.8	Hydraulic	Dead	G160	GAS-ABB-PMR-245-HMB-HYD
245	ABB	242PMR40-40	HMB-1.8	Hydraulic	Dead	G160	GAS-ABB-PMR-245-HMB-HYD
245	ABB	245PMG40-20B	HMB-8	Hydraulic	Dead	G161	GAS-ABB-PMG-245-HMB-HYD
245	ABB	245PMG40-30B	HMB-8	Hydraulic	Dead	G161	GAS-ABB-PMG-245-HMB-HYD
245	ABB	245PMG40-40B	HMB-8	Hydraulic	Dead	G161	GAS-ABB-PMG-245-HMB-HYD
245	ABB	245PMG50-20B	HMB-8	Hydraulic	Dead	G161	GAS-ABB-PMG-245-HMB-HYD
245	ABB	245PMG50-30B	HMB-8	Hydraulic	Dead	G161	GAS-ABB-PMG-245-HMB-HYD
245	ABB	245PMG50-40B	HMB-8	Hydraulic	Dead	G161	GAS-ABB-PMG-245-HMB-HYD
245	ABB	245PMG63-20B	HMB-8	Hydraulic	Dead	G161	GAS-ABB-PMG-245-HMB-HYD
245	ABB	245PMG63-30B	HMB-8	Hydraulic	Dead	G161	GAS-ABB-PMG-245-HMB-HYD
245	ABB	245PMG63-40B	HMB-8	Hydraulic	Dead	G161	GAS-ABB-PMG-245-HMB-HYD
245	ABB	242PMG80-30	HMB-8	Hydraulic	Dead	G161	GAS-ABB-PMG-245-HMB-HYD
362	ABB	362PMI40-20	HMB-8.3	Hydraulic	Dead	G162	GAS-ABB-PMI-362-HMB-HYD
362	ABB	362PMI40-30	HMB-8.3	Hydraulic	Dead	G162	GAS-ABB-PMI-362-HMB-HYD
362	ABB	362PMI40-40	HMB-8.3	Hydraulic	Dead	G162	GAS-ABB-PMI-362-HMB-HYD
362	ABB	362PMI50-20	HMB-8.3	Hydraulic	Dead	G162	GAS-ABB-PMI-362-HMB-HYD
362	ABB	362PMI50-30	HMB-8.3	Hydraulic	Dead	G162	GAS-ABB-PMI-362-HMB-HYD
362	ABB	362PMI50-40	HMB-8.3	Hydraulic	Dead	G162	GAS-ABB-PMI-362-HMB-HYD
362	ABB	362PMI63-20	HMB-8.3	Hydraulic	Dead	G162	GAS-ABB-PMI-362-HMB-HYD
362	ABB	362PMI63-30	HMB-8.3	Hydraulic	Dead	G162	GAS-ABB-PMI-362-HMB-HYD
362	ABB	362PMI63-40	HMB-8.3	Hydraulic	Dead	G162	GAS-ABB-PMI-362-HMB-HYD
362	ABB	362PMI63-20B	HMB-4.3	Hydraulic	Dead	G162	GAS-ABB-PMI-362-HMB-HYD
362	ABB	362PMI63-30B	HMB-4.3	Hydraulic	Dead	G162	GAS-ABB-PMI-362-HMB-HYD
362	ABB	362PMI63-40B	HMB-4.3	Hydraulic	Dead	G162	GAS-ABB-PMI-362-HMB-HYD
362	ABB	362PMI63-50B	HMB-4.3	Hydraulic	Dead	G162	GAS-ABB-PMI-362-HMB-HYD
362	ABB	362PMR63-20B	HMB-4.1	Hydraulic	Dead	G162a	GAS-ABB-PMR-362-HMB-HYD
362	ABB	362PMR63-30B	HMB-4.1	Hydraulic	Dead	G162a	GAS-ABB-PMR-362-HMB-HYD
362	ABB	362PMR63-40B	HMB-4.1	Hydraulic	Dead	G162a	GAS-ABB-PMR-362-HMB-HYD
362	ABB	362PMR63-44B	HMB-4.1	Hydraulic	Dead	G162a	GAS-ABB-PMR-362-HMB-HYD
362	ABB	362PMR63-50B	HMB-4.1	Hydraulic	Dead	G162a	GAS-ABB-PMR-362-HMB-HYD
362	ABB	362PMR63-55B	HMB-4.1	Hydraulic	Dead	G162a	GAS-ABB-PMR-362-HMB-HYD
550	ABB	550PM40-20	HMB-8	Hydraulic	Dead	G163	GAS-ABB-PM-550-HMB-HYD
550	ABB	550PM40-30	HMB-8	Hydraulic	Dead	G163	GAS-ABB-PM-550-HMB-HYD
550	ABB	550PM40-40	HMB-8	Hydraulic	Dead	G163	GAS-ABB-PM-550-HMB-HYD
550	ABB	550PM50-20	HMB-8	Hydraulic	Dead	G163	GAS-ABB-PM-550-HMB-HYD
550	ABB	550PM50-30	HMB-8	Hydraulic	Dead	G163	GAS-ABB-PM-550-HMB-HYD
550	ABB	550PM50-40	HMB-8	Hydraulic	Dead	G163	GAS-ABB-PM-550-HMB-HYD
550	ABB	550PM63-20	HMB-8	Hydraulic	Dead	G163	GAS-ABB-PM-550-HMB-HYD
550	ABB	550PM63-30	HMB-8	Hydraulic	Dead	G163	GAS-ABB-PM-550-HMB-HYD
550	ABB	550PM63-40	HMB-8	Hydraulic	Dead	G163	GAS-ABB-PM-550-HMB-HYD
550	ABB	550PM80-20	HMB-8	Hydraulic	Dead	G163	GAS-ABB-PM-550-HMB-HYD
550	ABB	550PM80-30	HMB-8	Hydraulic	Dead	G163	GAS-ABB-PM-550-HMB-HYD
550	ABB	550PM80-40	HMB-8	Hydraulic	Dead	G163	GAS-ABB-PM-550-HMB-HYD
800	ABB	800PM40-20	HMB-8	Hydraulic	Dead	G164	GAS-ABB-PM-800-HMB-HYD
800	ABB	800PM40-30	HMB-8	Hydraulic	Dead	G164	GAS-ABB-PM-800-HMB-HYD
800	ABB	800PM40-40	HMB-8	Hydraulic	Dead	G164	GAS-ABB-PM-800-HMB-HYD
800	ABB	800PM40-50	HMB-8	Hydraulic	Dead	G164	GAS-ABB-PM-800-HMB-HYD
800	ABB	800PM50-20	HMB-8	Hydraulic	Dead	G164	GAS-ABB-PM-800-HMB-HYD
800	ABB	800PM50-30	HMB-8	Hydraulic	Dead	G164	GAS-ABB-PM-800-HMB-HYD
800	ABB	800PM50-40	HMB-8	Hydraulic	Dead	G164	GAS-ABB-PM-800-HMB-HYD
800	ABB	800PM50-50	HMB-8	Hydraulic	Dead	G164	GAS-ABB-PM-800-HMB-HYD
800	ABB	800PM63-20	HMB-8	Hydraulic	Dead	G164	GAS-ABB-PM-800-HMB-HYD
800	ABB	800PM63-30	HMB-8	Hydraulic	Dead	G164	GAS-ABB-PM-800-HMB-HYD
800	ABB	800PM63-40	HMB-8	Hydraulic	Dead	G164	GAS-ABB-PM-800-HMB-HYD
800	ABB	800PM63-50	HMB-8	Hydraulic	Dead	G164	GAS-ABB-PM-800-HMB-HYD
245	ABB	242PMG40-20	AHMA	Hydraulic	Dead	G165	GAS-ABB-PMG-242-AHMA-HYD
245	ABB	242PMG50-20	AHMA	Hydraulic	Dead	G165	GAS-ABB-PMG-242-AHMA-HYD
245	ABB	242PMG63-20	AHMA	Hydraulic	Dead	G165	GAS-ABB-PMG-242-AHMA-HYD
245	ABB	242PMG63-30	AHMA	Hydraulic	Dead	G165	GAS-ABB-PMG-242-AHMA-HYD
245	ABB	242PMG63-40	AHMA	Hydraulic	Dead	G165	GAS-ABB-PMG-242-AHMA-HYD
245	ABB	242PMG50-30B	AHMA	Hydraulic	Dead	G165	GAS-ABB-PMG-242-AHMA-HYD
245	ABB	242PMG63-30B	AHMA	Hydraulic	Dead	G165	GAS-ABB-PMG-242-AHMA-HYD
245	ABB	242PMG80-20	AHMA	Hydraulic	Dead	G165	GAS-ABB-PMG-242-AHMA-HYD
245	ABB	242PMG80-30	AHMA	Hydraulic	Dead	G165	GAS-ABB-PMG-242-AHMA-HYD
245	ABB	242PMG80-40	AHMA	Hydraulic	Dead	G165	GAS-ABB-PMG-242-AHMA-HYD
362	ABB	362PM40-30	AHMA	Hydraulic	Dead	G166	GAS-ABB-PM-362-AHMA-HYD
362	ABB	362PM50-20	AHMA	Hydraulic	Dead	G166	GAS-ABB-PM-362-AHMA-HYD
362	ABB	362PM50-30	AHMA	Hydraulic	Dead	G166	GAS-ABB-PM-362-AHMA-HYD
362	ABB	362PM80-20	AHMA	Hydraulic	Dead	G166	GAS-ABB-PM-362-AHMA-HYD
362	ABB	362PM80-30	AHMA	Hydraulic	Dead	G166	GAS-ABB-PM-362-AHMA-HYD
362	ABB	362PM40-20	AHMA	Hydraulic	Dead	G166	GAS-ABB-PM-362-AHMA-HYD
550	ABB	550PM50-30	AHMA	Hydraulic	Dead	G167	GAS-ABB-PM-550-AHMA-HYD
550	ABB	550PM40-20	AHMA	Hydraulic	Dead	G167	GAS-ABB-PM-550-AHMA-HYD
550	ABB	550PM40-30	AHMA	Hydraulic	Dead	G167	GAS-ABB-PM-550-AHMA-HYD
550	ABB	550PM4040	AHMA	Hydraulic	Dead	G167	GAS-ABB-PM-550-AHMA-HYD
550	ABB	550-PM-50-40	AHMA	Hydraulic	Dead	G167	GAS-ABB-PM-550-AHMA-HYD
550	ABB	550-PM-63-30	AHMA	Hydraulic	Dead	G167	GAS-ABB-PM-550-AHMA-HYD
550	ABB	550-PM-63-40	AHMA	Hydraulic	Dead	G167	GAS-ABB-PM-550-AHMA-HYD
550	ABB	550-PM-80-40	AHMA	Hydraulic	Dead	G167	GAS-ABB-PM-550-AHMA-HYD
245	WESTINGHOUSE	242-SFA-40	AH-10	Pneumatic	Live	G168	GAS-WEST-SFA-242-AH-PNE
245	WESTINGHOUSE	242-SFA-50	AH-10	Pneumatic	Live	G168	GAS-WEST-SFA-242-AH-PNE
362	WESTINGHOUSE	362-SFA-40	AH-10	Pneumatic	Live	G169	GAS-WEST-SFA-362-AH-PNE
362	WESTINGHOUSE	362-SFA-50	AH-10	Pneumatic	Live	G169	GAS-WEST-SFA-362-AH-PNE
362	WESTINGHOUSE	362-SFA-63	AH-10	Pneumatic	Live	G169	GAS-WEST-SFA-362-AH-PNE
550	WESTINGHOUSE	550-SFA-40	AH-10	Pneumatic	Live	G170	GAS-WEST-SFA-550-AH-PNE
550	WESTINGHOUSE	550-SFA-50	AH-10	Pneumatic	Live	G170	GAS-WEST-SFA-550-AH-PNE
550	WESTINGHOUSE	550-SFA-63	AH-10	Pneumatic	Live	G170	GAS-WEST-SFA-550-AH-PNE
48.3	WESTINGHOUSE	483SP40	AA-7	Pneumatic	Dead	G171	GAS-WEST-SP-48/72-AA7-PNE
72.5	WESTINGHOUSE	72.5-SP22	AA-7	Pneumatic	Dead	G171	GAS-WEST-SP-48/72-AA7-PNE
72.5	WESTINGHOUSE	72.5-SP23	AA-7	Pneumatic	Dead	G171	GAS-WEST-SP-48/72-AA7-PNE
72.5	WESTINGHOUSE	72.5-SP31.5	AA-7	Pneumatic	Dead	G171	GAS-WEST-SP-48/72-AA7-PNE
72.5	WESTINGHOUSE	72.5-SP40	AA-7	Pneumatic	Dead	G171	GAS-WEST-SP-48/72-AA7-PNE
72.5	ABB	LTB D1/B	BLK	Spring	Live	G172a	GAS-ABB-LTBD1-72-BLK-SPR
145	ABB	LTB 145D1/B	BLK	Spring	Live	G172	GAS-ABB-LTBD1-145/170-BLK-SPR
170	ABB	LTB D1/B	BLK	Spring	Live	G172	GAS-ABB-LTBD1-145/170-BLK-SPR
72.5	ABB	LTB D1/B	MSD	Spring	Live	G173a	GAS-ABB-LTBD1-72-MSD-SPR
145	ABB	LTB D1/B	MSD	Spring	Live	G173	GAS-ABB-LTBD1-145/170-MSD-SPR
170	ABB	LTB D1/B	MSD	Spring	Live	G173	GAS-ABB-LTBD1-145/170-MSD-SPR
72.5	ABB	LTB E1	BLK	Spring	Live	G174b	GAS-ABB-LTBE1-72-BLK-SPR
145	ABB	LTB E1	BLK	Spring	Live	G174	GAS-ABB-LTBE1-145/170-BLK-SPR
170	ABB	LTB E1	BLK	Spring	Live	G174	GAS-ABB-LTBE1-145/170-BLK-SPR
245	ABB	LTB E1	BLK	Spring	Live	G174a	GAS-ABB-LTBE1-245-BLK-SPR
72.5	ABB	LTB E1	MSD	Spring	Live	G175b	GAS-ABB-LTBE1-72-MSD-SPR
145	ABB	LTB E1	MSD	Spring	Live	G175	GAS-ABB-LTBE1-145/170-MSD-SPR
170	ABB	LTB E1	MSD	Spring	Live	G175	GAS-ABB-LTBE1-145/170-MSD-SPR
245	ABB	LTB E1	MSD	Spring	Live	G175a	GAS-ABB-LTBE1-245-MSD-SPR
72.5	ABB	LTB E1	BLG	Spring	Live	G176b	GAS-ABB-LTBE1-72-BLG-SPR
145	ABB	LTB E1	BLG	Spring	Live	G176	GAS-ABB-LTBE1-145/170-BLG-SPR
170	ABB	LTB E1	BLG	Spring	Live	G176	GAS-ABB-LTBE1-145/170-BLG-SPR
245	ABB	LTB E1	BLG	Spring	Live	G176a	GAS-ABB-LTBE1-245-BLG-SPR
362	ABB	LTB E2	BLG	Spring	Live	G177a	GAS-ABB-LTBE2-362-BLG-SPR
550	ABB	LTB E2	BLG	Spring	Live	G177	GAS-ABB-LTBE2-550-BLG-SPR
72.5	ABB	LTB D1/B	FSA1	Spring	Live	G178a	GAS-ABB-LTBD1-72-FSA1-SPR
145	ABB	LTB D1/B	FSA1	Spring	Live	G178	GAS-ABB-LTBD1-145/170-FSA1-SPR
170	ABB	LTB D1/B	FSA1	Spring	Live	G178	GAS-ABB-LTBD1-145/170-FSA1-SPR
72.5	ABB	HPL B1	BLG	Spring	Live	G179	GAS-ABB-HPLB1-72-BLG-SPR
123	ABB	HPL B1	BLG	Spring	Live	G180	GAS-ABB-HPLB1-123/145/170-BLG-SPR
145	ABB	HPL B1	BLG	Spring	Live	G180	GAS-ABB-HPLB1-123/145/170-BLG-SPR
170	ABB	HPL B1	BLG	Spring	Live	G180	GAS-ABB-HPLB1-123/145/170-BLG-SPR
245	ABB	HPL B1	BLG	Spring	Live	G181	GAS-ABB-HPLB1-245-BLG-SPR
300	ABB	HPL B1	BLG	Spring	Live	G181	GAS-ABB-HPLB1-245-BLG-SPR
362	ABB	HPL B2	BLG	Spring	Live	G182	GAS-ABB-HPLB2-362/420-BLG-SPR
420	ABB	HPL B2	BLG	Spring	Live	G182	GAS-ABB-HPLB2-362/420-BLG-SPR
550	ABB	HPL B2	BLG	Spring	Live	G183	GAS-ABB-HPLB2-550-BLG-SPR
245	ABB	242PMI50-30	AHMA	Hydraulic	Dead	G184	GAS-ABB-PMI-242-AHMA-HYD
245	ABB	242PMI80-30	AHMA	Hydraulic	Dead	G184	GAS-ABB-PMI-242-AHMA-HYD
362	ABB	362PMI40-20	AHMA-8	Hydraulic	Dead	G185	GAS-ABB-PMI-362-AHMA-HYD
362	ABB	362PMI50-30	AHMA	Hydraulic	Dead	G185	GAS-ABB-PMI-362-AHMA-HYD
550	ABB	550PMI50-30	AHMA	Hydraulic	Dead	G186	GAS-ABB-PMI-550-AHMA-HYD
121	ABB	121PA40-16	AHMA	Hydraulic	Dead	G187	GAS-ABB-PA-121-AHMA-HYD
121	ABB	121PA 40-20C	AHMA	Hydraulic	Dead	G187	GAS-ABB-PA-121-AHMA-HYD
121	ABB	121PA40-30	AHMA	Hydraulic	Dead	G187	GAS-ABB-PA-121-AHMA-HYD
121	ABB	121PA40-30C	AHMA	Hydraulic	Dead	G187	GAS-ABB-PA-121-AHMA-HYD
245	ABB	242PA31.5-16	AHMA	Hydraulic	Dead	G188	GAS-ABB-PA-242-AHMA-HYD
245	ABB	242PA40-16	AHMA	Hydraulic	Dead	G188	GAS-ABB-PA-242-AHMA-HYD
245	ABB	242PA40-20	AHMA	Hydraulic	Dead	G188	GAS-ABB-PA-242-AHMA-HYD
245	ABB	242PA40-20/2	AHMA	Hydraulic	Dead	G188	GAS-ABB-PA-242-AHMA-HYD
245	ABB	242-PA-40-20A	AHMA	Hydraulic	Dead	G188	GAS-ABB-PA-242-AHMA-HYD
245	ABB	242PA40-30	AHMA	Hydraulic	Dead	G188	GAS-ABB-PA-242-AHMA-HYD
245	ABB	242PA40-30A	AHMA	Hydraulic	Dead	G188	GAS-ABB-PA-242-AHMA-HYD
245	ABB	242PA50-20	AHMA	Hydraulic	Dead	G188	GAS-ABB-PA-242-AHMA-HYD
245	ABB	242PA50-30	AHMA	Hydraulic	Dead	G188	GAS-ABB-PA-242-AHMA-HYD
245	ABB	242PA63-20	AHMA	Hydraulic	Dead	G188	GAS-ABB-PA-242-AHMA-HYD
245	ABB	242PA63-30	AHMA	Hydraulic	Dead	G188	GAS-ABB-PA-242-AHMA-HYD
245	ABB	242PA63-40	AHMA	Hydraulic	Dead	G188	GAS-ABB-PA-242-AHMA-HYD
245	ABB	242PA63-40A	AHMA	Hydraulic	Dead	G188	GAS-ABB-PA-242-AHMA-HYD
121	ABB	121PA40-20B	HKA	Hydraulic	Dead	G189	GAS-ABB-PA-121/145-HKA-HYD
121	ABB	121PA40-30B	HKA	Hydraulic	Dead	G189	GAS-ABB-PA-121/145-HKA-HYD
145	ABB	145-PA-40-20B	HKA	Hydraulic	Dead	G189	GAS-ABB-PA-121/145-HKA-HYD
145	ABB	145-PA-40-30B	HKA	Hydraulic	Dead	G189	GAS-ABB-PA-121/145-HKA-HYD
245	ABB	242PA40-20	HKA	Hydraulic	Dead	G190	GAS-ABB-PA-242-HKA-HYD
245	BBC	ELF SL4-2	PKA	Pneumatic	Live	G191	GAS-BBC-ELF-245-PKA-PNE
362	BBC	ELF SL5-2	PKA	Pneumatic	Live	G192	GAS-BBC-ELF-362/420-PKA-PNE
420	BBC	ELF SL6-2	PKA	Pneumatic	Live	G192	GAS-BBC-ELF-362/420-PKA-PNE
138	WESTINGHOUSE	SF	AA-10	Pneumatic	Dead	G193a	GAS-WEST-SF-138-AA-PNE
230	WESTINGHOUSE	2300-SF-15000	AA-10	Pneumatic	Dead	G193	GAS-WEST-SF-230-AA-PNE
230	WESTINGHOUSE	2300-SF-20000	AA-10	Pneumatic	Dead	G193	GAS-WEST-SF-230-AA-PNE
121	WESTINGHOUSE	121DWE40	MWE	Pneumatic	Dead	G194	GAS-WEST-DWE/LWE-MWE-PNE
145	WESTINGHOUSE	145DWE40	MWE	Pneumatic	Dead	G194	GAS-WEST-DWE/LWE-MWE-PNE
169	WESTINGHOUSE	169DWE40	MWE	Pneumatic	Dead	G194	GAS-WEST-DWE/LWE-MWE-PNE
242	WESTINGHOUSE	242-LWE-55	MWE	Pneumatic	Dead	G194	GAS-WEST-DWE/LWE-MWE-PNE
242	WESTINGHOUSE	242-LWE-63	MWE	Pneumatic	Dead	G194	GAS-WEST-DWE/LWE-MWE-PNE
550	WESTINGHOUSE	550-LWER-40	MWE	Pneumatic	Dead	G194	GAS-WEST-DWE/LWE-MWE-PNE
145	MAGRINI	145 MHD		Pneumatic	Live	G195	GAS-MAG-MHD-145-PNE
245	MAGRINI	245 MHMe-1P		Pneumatic	Live	G196	GAS-MAG-MHM-245-PNE
550	MAGRINI	550 MHMe-2Y		Pneumatic	Live	G197	GAS-MAG-MHM-550-PNE
123	MAGRINI	SB6		Gas-dynamic	Live	G198	GAS-MAG-SB6-123/145/170-GASD
145	MAGRINI	SB6		Gas-dynamic	Live	G198	GAS-MAG-SB6-123/145/170-GASD
170	MAGRINI	SB6		Gas-dynamic	Live	G198	GAS-MAG-SB6-123/145/170-GASD
245	MAGRINI	SB6		Gas-dynamic	Live	G199	GAS-MAG-SB6-245-GASD
145	HITACHI	HS 145	HVB S1	Spring	Dead	G201	GAS-HIT-HS-145/170-HVBS1-SPR
170	HITACHI	HS 170	HVB S1	Spring	Dead	G201	GAS-HIT-HS-145/170-HVBS1-SPR
245	HITACHI	HS 245	HVB S1	Spring	Dead	G202	GAS-HIT-HS-245-HVBS1-SPR
362	HITACHI	HHI 362		Hydraulic	Dead	G203	GAS-HIT-HHI-362-HYD
550	HITACHI	HHI 550		Hydraulic	Dead	G204	GAS-HIT-HHI-550-HYD
800	HITACHI	HHI 800		Hydraulic	Dead	G205	GAS-HIT-HHI-800-HYD
230	COGENEL	FX-12	C1	Pneudraulic	Live	G212	GAS-COGE-FX-230-C1-PNED
230	COGENEL	FX-22	C1	Pneudraulic	Live	G212	GAS-COGE-FX-230-C1-PNED
362	DELLEALSTOM	FX-22	C1	Pneudraulic	Live	G213	GAS-COGE-FX-362-C1-PNED
345	COGENEL	FX-12	C1	Pneudraulic	Live	G213	GAS-COGE-FX-362-C1-PNED
345	COGENEL	FXT-15	C1	Pneudraulic	Live	G213	GAS-COGE-FX-362-C1-PNED
550	COGENEL	FX-12	C1	Pneudraulic	Live	G216	GAS-COGE-FX-550-C1-PNED
550	COGENEL	FX-32	C1	Pneudraulic	Live	G216	GAS-COGE-FX-550-C1-PNED
170	COGENEL	FX-12	C1	Pneudraulic	Live	G215	GAS-COGE-FX-170-C1-PNED
145	GE/SPRECHERE	HGF-312	FKF1-2	Spring	Live	G239	GAS-GE/SPR-HGF312-145-FKF-SPR
145	GE/SPRECHERE	HGF-112/1	FKF	Spring	Live	G142	GAS-GE/SPR-HGF112-145-FKF-SPR
245	GE/SPRECHERE	HGF-114/1A	FKF	Spring	Live	G240	GAS-GE/SPR-HGF114/115-245-FKF-SPR
275	GE/SPRECHERE	HGF-115/2C	FKF	Spring	Live	G240	GAS-GE/SPR-HGF114/115-245-FKF-SPR
550	COGENEL/ALSTOM	FX-22	C1	Pneudraulic	Live	G216	GAS-COGE-FX-550-C1-PNED
145	AEG	LT145-1		Spring	Dead	G218	GAS-AEG-LT-145-SPR
123	PENNSYLVANIAB	PB123-63	OAV-16	Hydraulic	Dead	G219	GAS-PENNB-PB-123/145/170-OAV-HYD
145	PENNSYLVANIAB	PB145-63	OAV-16	Hydraulic	Dead	G219	GAS-PENNB-PB-123/145/170-OAV-HYD
170	PENNSYLVANIAB	PB170-63	OAV-16	Hydraulic	Dead	G219	GAS-PENNB-PB-123/145/170-OAV-HYD
245	PENNSYLVANIAB	PB245-63	OAV-16	Hydraulic	Dead	G220	GAS-PENNB-PB-245-OAV-HYD
72.5	MCGRAWE	72EPB-20-12	OA-3	Hydraulic	Dead	G221	GAS-MCGR-EPB-72-OA-HYD
72.5	ALSTOM/AREVA	GL309	FK3-1	Spring	Live	G231a	GAS-ALS/ARE-GL309-72-FK3-SPR
145	ALSTOM/AREVA	GL312	FK3-1	Spring	Live	G231	GAS-ALS/ARE-GL312-145-FK3-SPR
245	ALSTOM/AREVA	GL314	FK3-1	Spring	Live	G232	GAS-ALS/ARE-GL314-245-FK3-SPR
550	ALSTOM/AREVA	GL317	FK3	Spring	Live	G233	GAS-ALS/ARE-GL317-550-FK3-SPR
245	ALSTOM/AREVA	FL 245		Hydraulic	Live	G234	GAS-ALS/ARE-FL-245-HYD
550	GE/ALSTOM/AREVA	DT2-550 H3	ATC 55/28-135	Hydraulic	Dead	G235	GAS-GE/ARE-DT2-550-HDS ATC-HYD
245	AEG/ALSTOM	S1-245	CRR5	Spring	Live	G236	GAS-AEG/ALS-S1-245-CRR-SPR
72.5	GE/ALSTOM/AREVA	HGF 1012	FKF2-9	Spring	Dead	G238	GAS-ALS/ARE-HGF1012-72-FKF-SPR
72.5	SIEMENS	3AP1	FA	Spring	Live	G241	GAS-SIEM-3AP1-72-FA-SPR
123	SIEMENS	3AP1	FA	Spring	Live	G242	GAS-SIEM-3AP1-123/145/170-FA-SPR
145	SIEMENS	3AP1	FA	Spring	Live	G242	GAS-SIEM-3AP1-123/145/170-FA-SPR
170	SIEMENS	3AP1	FA	Spring	Live	G242	GAS-SIEM-3AP1-123/145/170-FA-SPR
245	SIEMENS	3AP1	FA	Spring	Live	G243	GAS-SIEM-3AP1-245/300-FA-SPR
300	SIEMENS	3AP1	FA	Spring	Live	G243	GAS-SIEM-3AP1-245/300-FA-SPR
420	SIEMENS	3AP2/3	FA	Spring	Live	G244	GAS-SIEM-3AP2/3-420-FA-SPR
550	SIEMENS	3AP2/3	FA	Spring	Live	G245	GAS-SIEM-3AP2/3-550-FA-SPR
800	SIEMENS	3AP4/5	FA	Spring	Live	G246	GAS-SIEM-3AP4/5-800-FA-SPR
550	SIEMENS	3AT4/5-550		Electrohydraulic	Live	G247	GAS-SIEM-3AT4/5-550-HYD
245	SIEMENS	3AT2/3		Electrohydraulic	Live	G248	GAS-SIEM-3AT2/3-245/300-HYD
300	SIEMENS	3AT2/3		Electrohydraulic	Live	G248	GAS-SIEM-3AT2/3-245/300-HYD
362	SIEMENS	3AT2/3		Electrohydraulic	Live	G249	GAS-SIEM-3AT2/3-362/420-HYD
420	SIEMENS	3AT2/3		Electrohydraulic	Live	G249	GAS-SIEM-3AT2/3-362/420-HYD
550	SIEMENS	3AT2/3		Electrohydraulic	Live	G250	GAS-SIEM-3AT2/3-550-HYD
362	SIEMENS	3AT4/5		Electrohydraulic	Live	G251	GAS-SIEM-3AT4/5-362/420-HYD
420	SIEMENS	3AT4/5		Electrohydraulic	Live	G251	GAS-SIEM-3AT4/5-362/420-HYD
800	SIEMENS	3AT4/5		Electrohydraulic	Live	G252	GAS-SIEM-3AT4/5-800-HYD
72.5	SIEMENS	3AP1 DT		Spring	Dead	G253	GAS-SIEM-3AP1DT-72-SPR
123	SIEMENS	3AP1 DT		Spring	Dead	G254	GAS-SIEM-3AP1DT-123/145/170-SPR
145	SIEMENS	3AP1 DT		Spring	Dead	G254	GAS-SIEM-3AP1DT-123/145/170-SPR
245	SIEMENS	3AP1 DT		Spring	Dead	G255	GAS-SIEM-3AP1DT-245-SPR
362	SIEMENS	3AP2 DT		Spring	Dead	G256	GAS-SIEM-3AP2DT-362-SPR
550	SIEMENS	3AP2/3 DT		Spring	Dead	G257	GAS-SIEM-3AP2/3DT-550-SPR
550	SIEMENS	3AT2/3 DT		Electrohydraulic	Dead	G258	GAS-SIEM-3AT2/3DT-550-HYD
145	SIEMENS	3AQ1		Hydraulic	Live	G259	GAS-SIEM-3AQ1-145-HYD
245	SIEMENS	3AQ1E		Hydraulic	Live	G260	GAS-SIEM-3AQ1-245-HYD
72.5	XD/GE	LW24-72.5		Spring	Dead	G261	GAS-XD/GE-LW-72-SPR
126	XD/GE	LW24-126		Spring	Dead	G262	GAS-XD/GE-LW-126/145-SPR
145	XD/GE	LW24-145		Spring	Dead	G262	GAS-XD/GE-LW-126/145-SPR
252	XD/GE	LW24-252		Spring	Dead	G263	GAS-XD/GE-LW-252-SPR
252	XD/GE	LW24-252		Hydraulic	Dead	G264	GAS-XD/GE-LW-252-HYD
363	XD/GE	LW23-363		Spring	Dead	G265	GAS-XD/GE-LW-363-SPR
363	XD/GE	LW13A-363		Spring	Dead	G265	GAS-XD/GE-LW-363-SPR
363	XD/GE	LW23-363		Hydraulic	Dead	G266	GAS-XD/GE-LW-363/420-HYD
363	XD/GE	LW13A-363		Hydraulic	Dead	G266	GAS-XD/GE-LW-363/420-HYD
420	XD/GE	LW13A-420		Hydraulic	Dead	G266	GAS-XD/GE-LW-363/420-HYD
550	XD/GE	LW13A-550		Hydraulic	Dead	G267	GAS-XD/GE-LW-550-HYD
800	XD/GE	LW13A-800		Hydraulic	Dead	G268	GAS-XD/GE-LW-800-HYD
145	ABB/BBC	ELF	PKA	Pneumatic	Live	G290	GAS-BBC-ELF-145-PKA-PNE
550	ABB/BBC	ELF SP7-2	AHMA	Hydraulic	Live	G291	GAS-BBC-ELF-550-AHMA-HYD
72.5-170	MERLING	FA1		Hydraulic	Live	G292	GAS-MERG-FA1/2/4-HYD
170-362	MERLING	FA2		Hydraulic	Live	G292	GAS-MERG-FA1/2/4-HYD
362-550	MERLING	FA4		Hydraulic	Live	G292	GAS-MERG-FA1/2/4-HYD

1.2 - FAMILY ASSIGNMENTS FOR SELECT OIL CIRCUIT BREAKERS

Voltage (kV)	Manufacturer	Breaker Model	Mechanism Model	Mechanism Model Type	EPRI Breaker Family Number	EPRI Breaker Family Name
69	ALLIS/SIEMENS	FZO151-69H	SO-500	Solenoid	O101	OIL-ALLIS/SIEM-FZO-69-SO-SOL
69	ALLIS/SIEMENS	FZO151-69J	SO-500	Solenoid	O101	OIL-ALLIS/SIEM-FZO-69-SO-SOL
69	ALLIS/SIEMENS	FZO-151-69F	PN	Pneumatic	O102	OIL-ALLIS/SIEM-FZO-69-PN-PNE
69	ALLIS/SIEMENS	FZO-151-69D	PN	Pneumatic	O102	OIL-ALLIS/SIEM-FZO-69-PN-PNE
69	ALLIS/SIEMENS	FZO-50-69D	PN	Pneumatic	O102	OIL-ALLIS/SIEM-FZO-69-PN-PNE
69	ALLIS/SIEMENS	FZO-69-2500-1	PH	Pneudraulic	O103	OIL-ALLIS/SIEM-FZO-69-PH-PNED
69	ALLIS/SIEMENS	BZO-69-5000H-1	PH	Pneudraulic	O105	OIL-ALLIS/SIEM-BZO-69-PH-PNED
115	ALLIS/SIEMENS	BZO-115-10000-2	PN	Pneumatic	O106	OIL-ALLIS/SIEM-BZO-115to169-PN-PNE
115	ALLIS/SIEMENS	BZO-115-10000-3	PN	Pneumatic	O106	OIL-ALLIS/SIEM-BZO-115to169-PN-PNE
115	ALLIS/SIEMENS	BZO-115-5000-2	PN	Pneumatic	O106	OIL-ALLIS/SIEM-BZO-115to169-PN-PNE
115	ALLIS/SIEMENS	BZO-115-5000-4	PN	Pneumatic	O106	OIL-ALLIS/SIEM-BZO-115to169-PN-PNE
160	ALLIS/SIEMENS	BZO-160-161-K	PN	Pneumatic	O106	OIL-ALLIS/SIEM-BZO-115to169-PN-PNE
160	ALLIS/SIEMENS	BZO-160-161-JS	PN	Pneumatic	O106	OIL-ALLIS/SIEM-BZO-115to169-PN-PNE
121	ALLIS/SIEMENS	BZO-121-20-4	PN	Pneumatic	O106	OIL-ALLIS/SIEM-BZO-115to169-PN-PNE
121	ALLIS/SIEMENS	BZO-121-20-7	PN	Pneumatic	O106	OIL-ALLIS/SIEM-BZO-115to169-PN-PNE
121	ALLIS/SIEMENS	BZO-121-5000-7	PN	Pneumatic	O106	OIL-ALLIS/SIEM-BZO-115to169-PN-PNE
138	ALLIS/SIEMENS	BZO-138-5000-4	PN	Pneumatic	O106	OIL-ALLIS/SIEM-BZO-115to169-PN-PNE
145	ALLIS/SIEMENS	BZO-145-20-7	PN	Pneumatic	O106	OIL-ALLIS/SIEM-BZO-115to169-PN-PNE
160	ALLIS/SIEMENS	BZO160-138JS	PN	Pneumatic	O106	OIL-ALLIS/SIEM-BZO-115to169-PN-PNE
160	ALLIS/SIEMENS	BZO-160-115-J	PN	Pneumatic	O106	OIL-ALLIS/SIEM-BZO-115to169-PN-PNE
115	ALLIS/SIEMENS	BZO-115-10-6	PH	Pneudraulic	O107	OIL-ALLIS/SIEM-BZO-115to169-PH-PNED
115	ALLIS/SIEMENS	BZO-115-5000-H	PH	Pneudraulic	O107	OIL-ALLIS/SIEM-BZO-115to169-PH-PNED
115	ALLIS/SIEMENS	BZO-115-5000-2	PH	Pneudraulic	O107	OIL-ALLIS/SIEM-BZO-115to169-PH-PNED
115	ALLIS/SIEMENS	BZO-115-10000	PH	Pneudraulic	O107	OIL-ALLIS/SIEM-BZO-115to169-PH-PNED
115	ALLIS/SIEMENS	BZO-115-10000-2	PH	Pneudraulic	O107	OIL-ALLIS/SIEM-BZO-115to169-PH-PNED
115	ALLIS/SIEMENS	BZO-115-10000-3	PH	Pneudraulic	O107	OIL-ALLIS/SIEM-BZO-115to169-PH-PNED
121	ALLIS/SIEMENS	BZO-121-20-6	PH	Pneudraulic	O107	OIL-ALLIS/SIEM-BZO-115to169-PH-PNED
121	ALLIS/SIEMENS	BZO-121-40	PH	Pneudraulic	O107	OIL-ALLIS/SIEM-BZO-115to169-PH-PNED
121	ALLIS/SIEMENS	BZO-121-40-6	PH	Pneudraulic	O107	OIL-ALLIS/SIEM-BZO-115to169-PH-PNED
121	ALLIS/SIEMENS	BZO-121-40-6-C	PH	Pneudraulic	O107	OIL-ALLIS/SIEM-BZO-115to169-PH-PNED
121	ALLIS/SIEMENS	BZO-121-50-6	PH	Pneudraulic	O107	OIL-ALLIS/SIEM-BZO-115to169-PH-PNED
121	ALLIS/SIEMENS	BZO-121-63-6	PH	Pneudraulic	O107	OIL-ALLIS/SIEM-BZO-115to169-PH-PNED
121	ALLIS/SIEMENS	BZO-121-63-6 LCP	PH	Pneudraulic	O107	OIL-ALLIS/SIEM-BZO-115to169-PH-PNED
145	ALLIS/SIEMENS	BZO-145-50-6	PH	Pneudraulic	O107	OIL-ALLIS/SIEM-BZO-115to169-PH-PNED
145	ALLIS/SIEMENS	BZO-145-63-3	PH	Pneudraulic	O107	OIL-ALLIS/SIEM-BZO-115to169-PH-PNED
145	ALLIS/SIEMENS	BZO-145-63-6	PH	Pneudraulic	O107	OIL-ALLIS/SIEM-BZO-115to169-PH-PNED
145	ALLIS/SIEMENS	BZO-145-63-6C	PH	Pneudraulic	O107	OIL-ALLIS/SIEM-BZO-115to169-PH-PNED
145	ALLIS/SIEMENS	BZO-145-40-6	PH	Pneudraulic	O107	OIL-ALLIS/SIEM-BZO-115to169-PH-PNED
145	ALLIS/SIEMENS	BZO-145-40-6C	PH	Pneudraulic	O107	OIL-ALLIS/SIEM-BZO-115to169-PH-PNED
145	ALLIS/SIEMENS	BZO-145-50-20PH	PH	Pneudraulic	O107	OIL-ALLIS/SIEM-BZO-115to169-PH-PNED
160	ALLIS/SIEMENS	BZO-160-115	PH	Pneudraulic	O107	OIL-ALLIS/SIEM-BZO-115to169-PH-PNED
160	ALLIS/SIEMENS	BZO160-138M	PH	Pneudraulic	O107	OIL-ALLIS/SIEM-BZO-115to169-PH-PNED
161	ALLIS/SIEMENS	BZO-161-15000-2	PH	Pneudraulic	O107	OIL-ALLIS/SIEM-BZO-115to169-PH-PNED
161	ALLIS/SIEMENS	BZO-161-15000-H	PH	Pneudraulic	O107	OIL-ALLIS/SIEM-BZO-115to169-PH-PNED
169	ALLIS/SIEMENS	BZO-169-50-2	PH	Pneudraulic	O107	OIL-ALLIS/SIEM-BZO-115to169-PH-PNED
169	ALLIS/SIEMENS	BZO-169-50-3	PH	Pneudraulic	O107	OIL-ALLIS/SIEM-BZO-115to169-PH-PNED
138	ALLIS/SIEMENS	BZO-138-10000-2	PH	Pneudraulic	O107	OIL-ALLIS/SIEM-BZO-115to169-PH-PNED
138	ALLIS/SIEMENS	BZO-138-15000-2	PH	Pneudraulic	O107	OIL-ALLIS/SIEM-BZO-115to169-PH-PNED
138	ALLIS/SIEMENS	BZO-138-15000-3	PH	Pneudraulic	O107	OIL-ALLIS/SIEM-BZO-115to169-PH-PNED
138	ALLIS/SIEMENS	BZO138-10000H	PH	Pneudraulic	O107	OIL-ALLIS/SIEM-BZO-115to169-PH-PNED
230	ALLIS/SIEMENS	BZO-230-10000H	PH	Pneudraulic	O108	OIL-ALLIS/SIEM-BZO-230/242-PH-PNED
230	ALLIS/SIEMENS	BZO-230-20000-2	PH	Pneudraulic	O108	OIL-ALLIS/SIEM-BZO-230/242-PH-PNED
230	ALLIS/SIEMENS	BZO-230-20000-3	PH	Pneudraulic	O108	OIL-ALLIS/SIEM-BZO-230/242-PH-PNED
242	ALLIS/SIEMENS	BZO-242-40-3	PH	Pneudraulic	O108	OIL-ALLIS/SIEM-BZO-230/242-PH-PNED
242	ALLIS/SIEMENS	BZO-242-50-3	PH	Pneudraulic	O108	OIL-ALLIS/SIEM-BZO-230/242-PH-PNED
242	ALLIS/SIEMENS	BZO-242-63-3	PH	Pneudraulic	O108	OIL-ALLIS/SIEM-BZO-230/242-PH-PNED
72.5	ALLIS/SIEMENS	TDO-72.5-31.5-3	PN	Pneumatic	O110	OIL-ALLIS/SIEM-72-TDO-PN-PNE
72.5	ALLIS/SIEMENS	TDO-72.5-20-3	PN	Pneumatic	O110	OIL-ALLIS/SIEM-72-TDO-PN-PNE
69	ALLIS/SIEMENS	TDO-69-3500-1	PN	Pneumatic	O110	OIL-ALLIS/SIEM-72-TDO-PN-PNE
69	ALLIS/SIEMENS	TDO-69-3500-2	PN	Pneumatic	O110	OIL-ALLIS/SIEM-72-TDO-PN-PNE
69	ALLIS/SIEMENS	TDO-69-2500	PN	Pneumatic	O110	OIL-ALLIS/SIEM-72-TDO-PN-PNE
72.5	ALLIS/SIEMENS	LC3 TDO-725-20-3	PN	Pneumatic	O110	OIL-ALLIS/SIEM-72-TDO-PN-PNE
46	GE	FK-339-46-1500-4	MA	Pneumatic	O141	OIL-GE-FK-48/72-MA-PNE
46	GE	FK-339-46-1500-1	MA	Pneumatic	O141	OIL-GE-FK-48/72-MA-PNE
46	GE	FK-46-1500-1	MA	Pneumatic	O141	OIL-GE-FK-48/72-MA-PNE
46	GE	FK-46-1500-2	MA	Pneumatic	O141	OIL-GE-FK-48/72-MA-PNE
46	GE	FK-46-1500-3	MA	Pneumatic	O141	OIL-GE-FK-48/72-MA-PNE
48.3	GE	FK-48.3-17000-4Y	MA	Pneumatic	O141	OIL-GE-FK-48/72-MA-PNE
48.3	GE	FK-48.3-17000-5	MA	Pneumatic	O141	OIL-GE-FK-48/72-MA-PNE
48.3	GE	FK-48.3-29000-4Y	MA	Pneumatic	O141	OIL-GE-FK-48/72-MA-PNE
48.3	GE	FK-48.3-29000-5	MA	Pneumatic	O141	OIL-GE-FK-48/72-MA-PNE
69	GE	FK-439-69-10004	MA	Pneumatic	O141	OIL-GE-FK-48/72-MA-PNE
69	GE	FK-69-3500-7	MA	Pneumatic	O141	OIL-GE-FK-48/72-MA-PNE
69	GE	FK-69-1500	MA	Pneumatic	O141	OIL-GE-FK-48/72-MA-PNE
69	GE	FK-69-2500-5	MA	Pneumatic	O141	OIL-GE-FK-48/72-MA-PNE
69	GE	FK-69-2500-6	MA	Pneumatic	O141	OIL-GE-FK-48/72-MA-PNE
69	GE	FK-69-1500-1	MA	Pneumatic	O141	OIL-GE-FK-48/72-MA-PNE
69	GE	FK-69-1500-3	MA	Pneumatic	O141	OIL-GE-FK-48/72-MA-PNE
69	GE	FK-69-2500-4	MA	Pneumatic	O141	OIL-GE-FK-48/72-MA-PNE
69	GE	FK-69-3500	MA	Pneumatic	O141	OIL-GE-FK-48/72-MA-PNE
69	GE	FK-339-69-1500	MA	Pneumatic	O141	OIL-GE-FK-48/72-MA-PNE
69	GE	FK-339-1000	MA	Pneumatic	O141	OIL-GE-FK-48/72-MA-PNE
69	GE	FK-439-1000	MA	Pneumatic	O141	OIL-GE-FK-48/72-MA-PNE
69	GE	FK-439-69-1000-	MA	Pneumatic	O141	OIL-GE-FK-48/72-MA-PNE
69	GE	FK-439-69-1000-4	MA	Pneumatic	O141	OIL-GE-FK-48/72-MA-PNE
69	GE	FK-439-69-1000-5	MA	Pneumatic	O141	OIL-GE-FK-48/72-MA-PNE
69	GE	FK-439-69-1500-	MA	Pneumatic	O141	OIL-GE-FK-48/72-MA-PNE
69	GE	FK-439-69-1500-3	MA	Pneumatic	O141	OIL-GE-FK-48/72-MA-PNE
69	GE	FK-439-69-1500-4	MA	Pneumatic	O141	OIL-GE-FK-48/72-MA-PNE
72.5	GE	FKA-72.5-19000-2	MA	Pneumatic	O142	OIL-GE-FKA-48/72-MA-PNE
48.3	GE	FK-48.3-17000-4	ML-14	Spring	O143	OIL-GE-FK-48/72-ML-SPR
48.3	GE	FK-48.3-29000-5	ML-14	Spring	O143	OIL-GE-FK-48/72-ML-SPR
48.3	GE	FK-48.3-29000-5R	ML-14	Spring	O143	OIL-GE-FK-48/72-ML-SPR
72.5	GE	FK-72.5-27000-10	ML-14	Spring	O143	OIL-GE-FK-48/72-ML-SPR
72.5	GE	FK-72.5-19000-7	ML-14	Spring	O143	OIL-GE-FK-48/72-ML-SPR
48.3	GE	FKA-48.3-17000-6Y	ML-14	Spring	O144	OIL-GE-FKA-48/72-ML-SPR
48.3	GE	FKA-48.3-29000-6Y	ML-14	Spring	O144	OIL-GE-FKA-48/72-ML-SPR
72.5	GE	FKA-72.5-19000-2	ML-14	Spring	O144	OIL-GE-FKA-48/72-ML-SPR
72.5	GE	FKA-72.5-27000-3	ML-14	Spring	O144	OIL-GE-FKA-48/72-ML-SPR
121	GE	FK-121-63000-0	MA	Pneumatic	O145	OIL-GE-FK-115to169-MA-PNE
121	GE	FK-121-43000-5	MA	Pneumatic	O145	OIL-GE-FK-115to169-MA-PNE
115	GE	FK-115-5000	MA	Pneumatic	O145	OIL-GE-FK-115to169-MA-PNE
115	GE	FK-115-5000-2	MA	Pneumatic	O145	OIL-GE-FK-115to169-MA-PNE
121	GE	FK-121-43000-3	MA	Pneumatic	O145	OIL-GE-FK-115to169-MA-PNE
115	GE	FK-115-10000-1	MA	Pneumatic	O145	OIL-GE-FK-115to169-MA-PNE
115	GE	FK-115-10000-2	MA	Pneumatic	O145	OIL-GE-FK-115to169-MA-PNE
115	GE	FK-439-115-1500	MA	Pneumatic	O145	OIL-GE-FK-115to169-MA-PNE
115	GE	FK-439-115-1500-3	MA	Pneumatic	O145	OIL-GE-FK-115to169-MA-PNE
115	GE	FK-439-115-3500-3	MA	Pneumatic	O145	OIL-GE-FK-115to169-MA-PNE
115	GE	FK-439-115-5000-3	MA	Pneumatic	O145	OIL-GE-FK-115to169-MA-PNE
121	GE	FK-121-63000-1Y	MA	Pneumatic	O145	OIL-GE-FK-115to169-MA-PNE
115	GE	FK-439-2500	MA	Pneumatic	O145	OIL-GE-FK-115to169-MA-PNE
115	GE	FK-439-115-3500-3	MA	Pneumatic	O145	OIL-GE-FK-115to169-MA-PNE
115	GE	FK-439-115-5000-Y	MA	Pneumatic	O145	OIL-GE-FK-115to169-MA-PNE
121	GE	FK-121-40000-6	MA	Pneumatic	O145	OIL-GE-FK-115to169-MA-PNE
121	GE	FK-121-20000-2	MA	Pneumatic	O145	OIL-GE-FK-115to169-MA-PNE
121	GE	FK-121-20000-3	MA	Pneumatic	O145	OIL-GE-FK-115to169-MA-PNE
121	GE	FK-121-22000-2Y	MA	Pneumatic	O145	OIL-GE-FK-115to169-MA-PNE
138	GE	FK138-10000-3	MA	Pneumatic	O145	OIL-GE-FK-115to169-MA-PNE
138	GE	FK138-10000-5	MA	Pneumatic	O145	OIL-GE-FK-115to169-MA-PNE
169	GE	FK-169-50000-0	MA	Pneumatic	O145	OIL-GE-FK-115to169-MA-PNE
169	GE	FK-169-16000-2	MA	Pneumatic	O145	OIL-GE-FK-115to169-MA-PNE
169	GE	FK-169-16000-3	MA	Pneumatic	O145	OIL-GE-FK-115to169-MA-PNE
161	GE	FK-339-161-10000	MA	Pneumatic	O145	OIL-GE-FK-115to169-MA-PNE
161	GE	FK-339-161-5000	MA	Pneumatic	O145	OIL-GE-FK-115to169-MA-PNE
161	GE	FK-339-161-78C-F4	MA	Pneumatic	O145	OIL-GE-FK-115to169-MA-PNE
138	GE	FK439-138-5000	MA	Pneumatic	O145	OIL-GE-FK-115to169-MA-PNE
138	GE	FK439-138-5000-3	MA	Pneumatic	O145	OIL-GE-FK-115to169-MA-PNE
138	GE	FK439-138-5000-4	MA	Pneumatic	O145	OIL-GE-FK-115to169-MA-PNE
161	GE	FK-439-161-10000	MA	Pneumatic	O145	OIL-GE-FK-115to169-MA-PNE
161	GE	FK-439-161-3500	MA	Pneumatic	O145	OIL-GE-FK-115to169-MA-PNE
161	GE	FK-439-161-5000	MA	Pneumatic	O145	OIL-GE-FK-115to169-MA-PNE
161	GE	FK-439-161-5000-1	MA	Pneumatic	O145	OIL-GE-FK-115to169-MA-PNE
161	GE	FK-439-161-5000-2	MA	Pneumatic	O145	OIL-GE-FK-115to169-MA-PNE
115	GE	FK-439-115-5000-5Y	MA	Pneumatic	O145	OIL-GE-FK-115to169-MA-PNE
161	GE	FK-439-161-7500	MA	Pneumatic	O145	OIL-GE-FK-115to169-MA-PNE
242	GE	FK-242	MA	Pneumatic	O146	OIL-GE-FK-230/242-MA-PNE
161	GE	FGK-161-10000	MA	Pneumatic	O147	OIL-GE-FGK-115to169-MA-PNE
161	GE	FGK-161-10000-1	MA	Pneumatic	O147	OIL-GE-FGK-115to169-MA-PNE
161	GE	FGK-161-10000-3	MA	Pneumatic	O147	OIL-GE-FGK-115to169-MA-PNE
161	GE	FGK-161-10000-4	MA	Pneumatic	O147	OIL-GE-FGK-115to169-MA-PNE
161	GE	FGK-161-15000	MA	Pneumatic	O147	OIL-GE-FGK-115to169-MA-PNE
161	GE	FGK-161-18000	MA	Pneumatic	O147	OIL-GE-FGK-115to169-MA-PNE
138	GE	FGK138-10000	MA	Pneumatic	O147	OIL-GE-FGK-115to169-MA-PNE
230	GE	FGK-230-10000-7	MA	Pneumatic	O148	OIL-GE-FGK-230/242-MA-PNE
230	GE	FGK-230-15000-1	MA	Pneumatic	O148	OIL-GE-FGK-230/242-MA-PNE
69	ITE	69-KM-2500-12	P-24B	Pneumatic	O116	OIL-ITE-KM-69-P-PNE
69	ITE	69-KM-3500-12	P-24B	Pneumatic	O116	OIL-ITE-KM-69-P-PNE
69	ITE	69-KM-2500-12B	P-24B	Pneumatic	O116	OIL-ITE-KM-69-P-PNE
115	ITE	115KM10000-16B	P	Pneumatic	O117	OIL-ITE-KM-115to169-P-PNE
115	ITE	115-KM-10000-20	P	Pneumatic	O117	OIL-ITE-KM-115to169-P-PNE
161	ITE	161-KM-15000-16	P	Pneumatic	O117	OIL-ITE-KM-115to169-P-PNE
161	ITE	161-KM-15000-16B	P	Pneumatic	O117	OIL-ITE-KM-115to169-P-PNE
161	ITE	161-KM-15000-25	P	Pneumatic	O117	OIL-ITE-KM-115to169-P-PNE
161	ITE	161-KM-15000-25B	P	Pneumatic	O117	OIL-ITE-KM-115to169-P-PNE
169	ITE	169-KM-50-16C	P	Pneumatic	O117	OIL-ITE-KM-115to169-P-PNE
169	ITE	169-KM-50-16CS	P	Pneumatic	O117	OIL-ITE-KM-115to169-P-PNE
169	ITE	169-KM-50-20C	P	Pneumatic	O117	OIL-ITE-KM-115to169-P-PNE
169	ITE	169-KM-50-25C	P	Pneumatic	O117	OIL-ITE-KM-115to169-P-PNE
145	ITE	145-KM-40-20	P	Pneumatic	O117	OIL-ITE-KM-115to169-P-PNE
115	ITE	115KM-5000-12B	P	Pneumatic	O117	OIL-ITE-KM-115to169-P-PNE
115	ITE	115KM-5000-16B	P	Pneumatic	O117	OIL-ITE-KM-115to169-P-PNE
138	ITE	138-KM-5000-12B	P	Pneumatic	O117	OIL-ITE-KM-115to169-P-PNE
138	ITE	138-KM-10000-16	P	Pneumatic	O117	OIL-ITE-KM-115to169-P-PNE
230	ITE	230KM20,000-16	P	Pneumatic	O118	OIL-ITE-KM-230/242-P-PNE
242	ITE	242-KM-40-20	P	Pneumatic	O118	OIL-ITE-KM-230/242-P-PNE
242	ITE	242-KM-40-20C	P	Pneumatic	O118	OIL-ITE-KM-230/242-P-PNE
242	ITE	242KM50-20C	P	Pneumatic	O118	OIL-ITE-KM-230/242-P-PNE
242	ITE	242KM63-30B	P	Pneumatic	O118	OIL-ITE-KM-230/242-P-PNE
242	ITE	242KM63-20C	P	Pneumatic	O118	OIL-ITE-KM-230/242-P-PNE
46	ITE/GOULD	46KS150012B	P	Pneumatic	O121	OIL-ITE/GOULD-KS-48/69-P-PNE
46	ITE/GOULD	46KS250012B	P	Pneumatic	O121	OIL-ITE/GOULD-KS-48/69-P-PNE
69	ITE/GOULD	69KS350012D	P	Pneumatic	O121	OIL-ITE/GOULD-KS-48/69-P-PNE
69	ITE/GOULD	69KS2500-12D	P	Pneumatic	O121	OIL-ITE/GOULD-KS-48/69-P-PNE
69	ITE/GOULD	69-KS-2500-12B	P	Pneumatic	O121	OIL-ITE/GOULD-KS-48/69-P-PNE
69	ITE/GOULD	69-KS-2500-12C	P	Pneumatic	O121	OIL-ITE/GOULD-KS-48/69-P-PNE
69	ITE/GOULD	69-KSB-2500-12B	P	Pneumatic	O122	OIL-ITE/GOULD-KSB-69-P-PNE
69	ITE/GOULD	69-KSB-3500-12B	P	Pneumatic	O122	OIL-ITE/GOULD-KSB-69-P-PNE
69	ITE/GOULD	69-KSB-3500-20B	P	Pneumatic	O122	OIL-ITE/GOULD-KSB-69-P-PNE
69	ITE/GOULD	69-KSB-5000-20B	P	Pneumatic	O122	OIL-ITE/GOULD-KSB-69-P-PNE
72.5	MCGRAWE	CG-48	OA	Pneudraulic	O124	OIL-MCGR-CG-48/72-OA-PNED
72.5	MCGRAWE	CG-38	OA	Pneudraulic	O124	OIL-MCGR-CG-48/72-OA-PNED
72.5	MCGRAWE	CG-48-72.5-20	OA	Pneudraulic	O124	OIL-MCGR-CG-48/72-OA-PNED
72.5	MCGRAWE	CG-48-72.5-31.5	OA	Pneudraulic	O124	OIL-MCGR-CG-48/72-OA-PNED
72.5	MCGRAWE	CGH-50	OA	Pneudraulic	O125	OIL-MCGR-CGH-72-OA-PNED
115	MCGRAWE/PENNSYLVANIAT	AHJ-54-115-10000	OA	Pneudraulic	O126	OIL-MCGR/PENNT-AHJ-115to169-OA-PNED
115	MCGRAWE/PENNSYLVANIAT	AHJ-54	OA	Pneudraulic	O126	OIL-MCGR/PENNT-AHJ-115to169-OA-PNED
115	MCGRAWE/PENNSYLVANIAT	AHJ-60	OA	Pneudraulic	O126	OIL-MCGR/PENNT-AHJ-115to169-OA-PNED
138	MCGRAWE/PENNSYLVANIAT	AHJ-60-138-10000	OA	Pneudraulic	O126	OIL-MCGR/PENNT-AHJ-115to169-OA-PNED
138	MCGRAWE/PENNSYLVANIAT	AHJ-60-138-15000	OA	Pneudraulic	O126	OIL-MCGR/PENNT-AHJ-115to169-OA-PNED
115	MCGRAWE	AHF-48	OA	Pneudraulic	O127	OIL-MCGRAWE-AHF-115to169-OA-PNED
121	MCGRAWE	AHF-48-121-20	OA	Pneudraulic	O127	OIL-MCGRAWE-AHF-115to169-OA-PNED
145	MCGRAWE	AHF-54	OA	Pneudraulic	O127	OIL-MCGRAWE-AHF-115to169-OA-PNED
145	MCGRAWE	ALP-60	OA	Pneudraulic	O128	OIL-MCGRAWE-ALP-115to169-OA-PNED
145	MCGRAWE	ALP-54	OA	Pneudraulic	O128	OIL-MCGRAWE-ALP-115to169-OA-PNED
121	MCGRAWE	ALP-54-121-40	OA	Pneudraulic	O128	OIL-MCGRAWE-ALP-115to169-OA-PNED
121	MCGRAWE	AHP-60	OA	Pneudraulic	O129	OIL-MCGRAWE-AHP-115to169-OA-PNED
121	MCGRAWE	AHP-60-121-80	OA	Pneudraulic	O129	OIL-MCGRAWE-AHP-115to169-OA-PNED
69	MCGRAWE/PENNSYLVANIAT	CF-48-69-2500	OA	Pneudraulic	O130	OIL-MCGR/PENNT-CF-69-OA-PNED
115	MCGRAWE/PENNSYLVANIAT	AHE-48	OA	Pneudraulic	O131	OIL-MCGR/PENNT-AHE-115to169-OA-PNED
115	MCGRAWE/PENNSYLVANIAT	AHE-48-115-5000	OA	Pneudraulic	O131	OIL-MCGR/PENNT-AHE-115to169-OA-PNED
121	MCGRAWE/PENNSYLVANIAT	AHE-48-121-20	OA	Pneudraulic	O131	OIL-MCGR/PENNT-AHE-115to169-OA-PNED
138	MCGRAWE/PENNSYLVANIAT	AHE-54-138-5000	OA	Pneudraulic	O131	OIL-MCGR/PENNT-AHE-115to169-OA-PNED
115	MCGRAWE/FEDERALP	RHE-64-1	OA	Pneudraulic	O132	OIL-MCGR/FEDP-RHE-115to169-OA-PNED
115	MCGRAWE/FEDERALP	RHE-64-H	OA	Pneudraulic	O132	OIL-MCGR/FEDP-RHE-115to169-OA-PNED
230	MCGRAWE/FEDERALP	RHE-84-230-1500	OA	Pneudraulic	O133	OIL-MCGR/FEDP-RHE-230/242-OA-PNED
230	MCGRAWE/FEDERALP	RHE-84-230-10000	OA	Pneudraulic	O133	OIL-MCGR/FEDP-RHE-230/242-OA-PNED
230	MCGRAWE/FEDERALP	RHE-84-230-15000	OA	Pneudraulic	O133	OIL-MCGR/FEDP-RHE-230/242-OA-PNED
242	MCGRAWE/FEDERALP	RHE-84-242-31.5	OA	Pneudraulic	O133	OIL-MCGR/FEDP-RHE-230/242-OA-PNED
242	MCGRAWE/FEDERALP	RHE-90-242KV-40KA-2000AMPERE	OA	Pneudraulic	O133	OIL-MCGR/FEDP-RHE-230/242-OA-PNED
242	MCGRAWE/FEDERALP	RHE-90	OA	Pneudraulic	O133	OIL-MCGR/FEDP-RHE-230/242-OA-PNED
242	MCGRAWE/FEDERALP	RHE-84	OA	Pneudraulic	O133	OIL-MCGR/FEDP-RHE-230/242-OA-PNED
242	MCGRAWE	RHF-84-242-40	OA	Pneudraulic	O134	OIL-MCGR-RHF-230/242-OA-PNED
242	MCGRAWE	RHF-84	OA	Pneudraulic	O134	OIL-MCGR-RHF-230/242-OA-PNED
242	MCGRAWE	RHF-90	OA	Pneudraulic	O134	OIL-MCGR-RHF-230/242-OA-PNED
69	FEDERALP	AF-36-69-1500	OA	Pneudraulic	O135	OIL-FEDP-AF-69-OA-PNED
145	ABB	HLR1.145/2502-B2S	BLG	Spring	O151	OIL-ABB-HLR-145-BLG-SPR
245	ABB	HLR245	BLG	Spring	O152	OIL-ABB-HLR-245-BLG-SPR
420	ABB	HLR100/2932 ES	BLG	Spring	O153	OIL-ABB-HLR-420-BLG-SPR
69	WESTINGHOUSE	690-GM-5000	AA-10	Pneumatic	O161	OIL-WEST-GM-69-AA-PNE
115	WESTINGHOUSE	1150GM5000	AA-10	Pneumatic	O162	OIL-WEST-GM-115to169-AA-PNE
115	WESTINGHOUSE	1150GM5111	AA-10	Pneumatic	O162	OIL-WEST-GM-115to169-AA-PNE
115	WESTINGHOUSE	1150GM10000	AA-10	Pneumatic	O162	OIL-WEST-GM-115to169-AA-PNE
121	WESTINGHOUSE	121GM20	AA-10	Pneumatic	O162	OIL-WEST-GM-115to169-AA-PNE
138	WESTINGHOUSE	1380-GM-5000	AA-10	Pneumatic	O162	OIL-WEST-GM-115to169-AA-PNE
138	WESTINGHOUSE	1380-GM-10000	AA-10	Pneumatic	O162	OIL-WEST-GM-115to169-AA-PNE
138	WESTINGHOUSE	1380-GM-15000	AA-10	Pneumatic	O162	OIL-WEST-GM-115to169-AA-PNE
161	WESTINGHOUSE	1610-GM-15000	AA-10	Pneumatic	O162	OIL-WEST-GM-115to169-AA-PNE
145	WESTINGHOUSE	145-GM-20	AA-10	Pneumatic	O162	OIL-WEST-GM-115to169-AA-PNE
145	WESTINGHOUSE	145GM63	AA-10	Pneumatic	O162	OIL-WEST-GM-115to169-AA-PNE
169	WESTINGHOUSE	169-GM-31	AA-10	Pneumatic	O162	OIL-WEST-GM-115to169-AA-PNE
169	WESTINGHOUSE	169-GM-50	AA-10	Pneumatic	O162	OIL-WEST-GM-115to169-AA-PNE
115	WESTINGHOUSE	GM-6	AA-10	Pneumatic	O162	OIL-WEST-GM-115to169-AA-PNE
115	WESTINGHOUSE	GM-6B	AA-10	Pneumatic	O162	OIL-WEST-GM-115to169-AA-PNE
115	WESTINGHOUSE	GM-6BS	AA-10	Pneumatic	O162	OIL-WEST-GM-115to169-AA-PNE
115	WESTINGHOUSE	GM-5C	AA-10	Pneumatic	O162	OIL-WEST-GM-115to169-AA-PNE
161	WESTINGHOUSE	GM-5	AA-10	Pneumatic	O162	OIL-WEST-GM-115to169-AA-PNE
161	WESTINGHOUSE	GM-7	AA-10	Pneumatic	O162	OIL-WEST-GM-115to169-AA-PNE
161	WESTINGHOUSE	GM-5A	AA-10	Pneumatic	O162	OIL-WEST-GM-115to169-AA-PNE
161	WESTINGHOUSE	GM-7A	AA-10	Pneumatic	O162	OIL-WEST-GM-115to169-AA-PNE
161	WESTINGHOUSE	GM-7B	AA-10	Pneumatic	O162	OIL-WEST-GM-115to169-AA-PNE
161	WESTINGHOUSE	GM-6A	AA-10	Pneumatic	O162	OIL-WEST-GM-115to169-AA-PNE
69	WESTINGHOUSE	GM-6	CAS8	Pneumatic	O163	OIL-WEST-GM-69-CAS-PNE
161	WESTINGHOUSE	GM-4	CAS8	Pneumatic	O164	OIL-WEST-GM-115to169-CAS-PNE
161	WESTINGHOUSE	GM-4A	CAS8	Pneumatic	O164	OIL-WEST-GM-115to169-CAS-PNE
161	WESTINGHOUSE	GM-2	CAS8	Pneumatic	O164	OIL-WEST-GM-115to169-CAS-PNE
161	WESTINGHOUSE	GM-3	CAS8	Pneumatic	O164	OIL-WEST-GM-115to169-CAS-PNE
69	WESTINGHOUSE	GM-6A	SAF4	Solenoid	O165	OIL-WEST-GM-69-SAF-SOL
121	WESTINGHOUSE	121GMB40	AA-10	Pneumatic	O166	OIL-WEST-GMB-115to169-AA-PNE
145	WESTINGHOUSE	145-GMB-63	AA-10	Pneumatic	O166	OIL-WEST-GMB-115to169-AA-PNE
121	WESTINGHOUSE	121-GMB-63	AA-10	Pneumatic	O166	OIL-WEST-GMB-115to169-AA-PNE
145	WESTINGHOUSE	145-GMA-40	AA-10	Pneumatic	O167	OIL-WEST-GMA-115to169-AA-PNE
145	WESTINGHOUSE	145GMA63	AA-10	Pneumatic	O167	OIL-WEST-GMA-115to169-AA-PNE
121	WESTINGHOUSE	121-GMA-63	AA-10	Pneumatic	O167	OIL-WEST-GMA-115to169-AA-PNE
121	WESTINGHOUSE	121-GMA-40	AA-10	Pneumatic	O167	OIL-WEST-GMA-115to169-AA-PNE
242	WESTINGHOUSE	242GMA40	AA-14	Pneumatic	O168	OIL-WEST-GMA-242-AA-PNE
242	WESTINGHOUSE	242-GMA-50	AA-14	Pneumatic	O168	OIL-WEST-GMA-242-AA-PNE
242	WESTINGHOUSE	242-GMA-63	AA-14	Pneumatic	O168	OIL-WEST-GMA-242-AA-PNE
69	WESTINGHOUSE	GO-3B	AA-7	Pneumatic	O171	OIL-WEST-GO-69-AA-PNE
69	WESTINGHOUSE	GO-5B	AA-7	Pneumatic	O171	OIL-WEST-GO-69-AA-PNE
161	WESTINGHOUSE	GO-2A	AA-10	Pneumatic	O172	OIL-WEST-GO-161-AA-PNE
161	WESTINGHOUSE	GO-4	AA-10	Pneumatic	O172	OIL-WEST-GO-161-AA-PNE
161	WESTINGHOUSE	GO-4A	AA-10	Pneumatic	O172	OIL-WEST-GO-161-AA-PNE
46	WESTINGHOUSE	GO-2A	CAS6	Pneumatic	O173	OIL-WEST-GO-46/69-CAS-PNE
46	WESTINGHOUSE	GO-4	CAS6	Pneumatic	O173	OIL-WEST-GO-46/69-CAS-PNE
69	WESTINGHOUSE	GO-3B	CAS6	Pneumatic	O173	OIL-WEST-GO-46/69-CAS-PNE
69	WESTINGHOUSE	GO-4B	CAS6	Pneumatic	O173	OIL-WEST-GO-46/69-CAS-PNE
161	WESTINGHOUSE	GO-4	CAS8	Pneumatic	O174	OIL-WEST-GO-161-CAS-PNE
161	WESTINGHOUSE	GO-4A	CAS8	Pneumatic	O174	OIL-WEST-GO-161-CAS-PNE
230	WESTINGHOUSE	2300GW15000	AA-14	Pneumatic	O175	OIL-WEST-GW-230/242-AA-PNE
242	WESTINGHOUSE	242GW40	AA-10	Pneumatic	O175	OIL-WEST-GW-230/242-AA-PNE
230	WESTINGHOUSE	2300GW10000	AA-14	Pneumatic	O175	OIL-WEST-GW-230/242-AA-PNE
230	WESTINGHOUSE	2300GW20000	AA-14	Pneumatic	O175	OIL-WEST-GW-230/242-AA-PNE
242	WESTINGHOUSE	242GW40	AA-10	Pneumatic	O175	OIL-WEST-GW-230/242-AA-PNE
345	WESTINGHOUSE	3450-GW-25000	AA-14	Pneumatic	O176	OIL-WEST-GW-362-AA-PNE
362	WESTINGHOUSE	362GW63	AA-10	Pneumatic	O176	OIL-WEST-GW-362-AA-PNE
362	WESTINGHOUSE	362GW40	AA-10	Pneumatic	O176	OIL-WEST-GW-362-AA-PNE
362	WESTINGHOUSE	362GW50	AA-10	Pneumatic	O176	OIL-WEST-GW-362-AA-PNE
46	WESTINGHOUSE	460GS1500	AA-7	Pneumatic	O177	OIL-WEST-GS-46/69-AA-PNE
69	WESTINGHOUSE	690GS2500	AA-7	Pneumatic	O177	OIL-WEST-GS-46/69-AA-PNE
46	WESTINGHOUSE	460G1500	AA-7	Pneumatic	O178	OIL-WEST-G-46/69-AA-PNE
69	WESTINGHOUSE	690G2500	AA-7	Pneumatic	O178	OIL-WEST-G-46/69-AA-PNE
69	WESTINGHOUSE	690-G-3500	AA-7	Pneumatic	O178	OIL-WEST-G-46/69-AA-PNE
69	WESTINGHOUSE	690-G-1000	AA-7	Pneumatic	O178	OIL-WEST-G-46/69-AA-PNE
69	WESTINGHOUSE	690-G-1500	AA-7	Pneumatic	O178	OIL-WEST-G-46/69-AA-PNE

2 - Circuit Breaker Maintenance Taxonomy

EPRI researchers have developed a taxonomy to categorize and group circuit breaker corrective maintenance activities to improve circuit breaker condition assessment and asset management analytics.

The taxonomy has been designed to systematically describe the maintenance requirements for circuit breakers and provides a hierarchical schema and terminology to use when extracting information from historical free form text maintenance records, facilitating the categorization and organization of the work performed in a consistent manner. The transformed data allows for more efficient analysis of the information contained in historical maintenance records and the exploration of patterns, trends, and comparisons of maintenance requirements among breakers and breaker families. The analytics and metrics calculated from the uniformly categorized data are useful for breaker asset management and can help drive condition-based maintenance decisions. Breaker demographic and maintenance work order data gathered from more than 15 utilities was used to develop and test the taxonomy.

In addition to making historical maintenance data analysis-ready, the schema provides a logical framework that utilities could use to develop uniform data recording practices moving forward. Such an approach allows for uniformly combining historical maintenance information with newly collected work order data and the resulting larger dataset would support more robust analytics.

Taxonomy Hierarchy

Figure 1 shows the highest-level breakdown of maintenance work orders by breaker type and further distinctions based on the type of work performed.

Figure 1. Circuit breaker maintenance work order breakdown

Once the corrective maintenance work orders have been identified, the EPRI taxonomy employs a hierarchical structure as shown in Figure 2. The First Level Category groups maintenance activities based on breaker subsystems. For example, all mechanism-related maintenance activities are grouped into the First Level Category called Mechanism. The Second Level Category provides more details within the subsystem, followed by the Third Level Category that has additional detail. The Detailed Level Category has the most detailed information and most completely describes the maintenance activity performed, including names of the components and sub-components being maintained. The different category levels provide different amounts of details, usefulness, and value to analytics. This hierarchical structure provides organization and association among the levels. For example, the categorization of Detailed Level Category would be enough to deduce the other level categories.

Figure 2. Category level hierarchy

The following section presents maintenance taxonomy for SF₆ breakers. Oil and vacuum breakers maintenance taxonomy is currently under development.

Figure 3. Corrective maintenance breakdown

The next sections break down the First Level Category into its Second Level, Third Level and Detailed Level Categories.

Mechanism

The First Level Category breaks down by circuit breaker mechanism type, as shown in Figure 4.

Figure 4. Mechanism breakdown

Figures 5 through 9 show the Third Level and Detailed Level Categories for each of the Mechanism’s Second Level Categories.

Figure 5. Pneumatic system breakdown

Figure 6. Hydraulic system breakdown

Figure 7. Spring system breakdown

Figure 8. Coil assembly breakdown

Figure 9. Mechanism mechanical other breakdown

Interrupter – Gas Calls

This applies to work orders when gas has been added to the breaker to restore specified pressure.

Figure 10. Interrupter – gas call breakdown

Interrupter – Other

Figure 11 shows the breakdown for Interrupter – Other.

Figure 11. Interrupter – other breakdown

Electrical Controls

Figure 12 shows the breakdown for Electrical Controls.

Figure 12. Electrical controls breakdown

Bushing

Figure 13 shows the breakdown for Bushing.

Figure 13. Bushing breakdown

Monitoring

Monitoring is divided into the system being monitored. Figure 14 shows the Second Level Category breakdown for Monitoring.

Figure 14. Monitoring breakdown

Figures 15 through 19 show the breakdowns for each of the Second Level categories of Monitoring.

Figure 15. Gas monitoring breakdown

Figure 16. Pneumatic monitoring breakdown

Figure 17. Hydraulic monitoring breakdown

Figure 18. Spring monitoring breakdown

Figure 19. Monitoring other breakdown

Miscellaneous

The Miscellaneous category groups other subsystems and components such as cabinet, heaters maintenance work orders, as shown in Figure 20.

Figure 20. Miscellaneous breakdown

Figures 21 through 25 show the breakdowns for each of the Second Level Category of Miscellaneous.

Figure 21. Breaker cabinet breakdown

Figure 22. Breaker heater breakdown

Figure 23. Breaker CT breakdown

Figure 24. Breaker fail to operate breakdown

Figure 25. CM assessment and service bulletin/warranty work breakdown

Pole Replacement

Figure 26. Pole replacement breakdown

3 - Corrective Maintenance Requirements Based on Work Order Counts - Annual Average CM

To compare corrective maintenance activities across breaker families and across utilities, a new metric was developed, Annual Average CM.

It is calculated for each breaker and aggregated for families, as follows:

    Annual Average CM for breaker = (Number of CMs incurred by breaker) / (Number of Years over which the work order histories were observed)
    Annual Average CM for family = Sum [(Annual Average CM for breakers in the family)] / (Number of Breakers in Family)

Annual Average CM is calculated for each breaker using the maintenance history provided by the utility. For older breakers, EPRI has chosen to look back no more than ten years. As the name suggests, Annual Average CM for a breaker is calculated by summing the CM counts for that breaker and averaging it annually by dividing by the number of years over which work order histories were observed. For example, a breaker that had 4 corrective maintenance work orders over the last 5 years of available history has a calculated Annual Average CM of 0.8.

This metric can be used to assess corrective maintenance requirements for different circuit breaker families and draw comparisons across breaker families and different utilities.

In Figure 2-2, using standard box plots, the top row shows annual average CM values for four oil breaker families—two models from Allis/Siemens BZO, GE FK and Westinghouse GM breakers. Within the boxes the horizontal line shows the median and the X shows the mean. The box colors represent different utilities. The middle plot shows the age distribution and the table at the bottom gives the breaker count used to generate the plots.

This visualization is helpful in making comparisons. For example, the Westinghouse breakers have significantly more varied performance at the different utilities. Furthermore, Utility B shows better overall performance across breaker families. These observations raise questions such as:

Why is there a performance difference?
What is Utility B doing differently in maintaining its oil circuit breaker fleet?

These questions cannot be answered directly from this analysis, but it is possible to see which breaker family is incurring a higher level of maintenance than other families, which may influence CM requirements in the coming year. It is also possible to identify how a given breaker family is performing at different utilities, and how breaker families differ in their maintenance requirements.

The metric can also be used to look at different families within a single utility, or to make comparisons of gas and oil breakers.

Figure 2-3 is an example of the same metric used in an analysis demonstrating increasing maintenance with age for one family of gas breakers. The plot on the left shows the annual average CM count versus average family age for each utility. There is a clear trend of increasing CM with increasing age. The plot on the right shows the percentage of breakers with one or more CM actions. For example, at utility G (family average age around 12) only a little over 30 % of the breakers have needed corrective maintenance while at utility F (average age around 23), 90 % have. This analysis is only possible because the IDB has a collection of breakers of the same family from different utilities with different average ages for this family.

Such a metric may be useful in providing a quantitative, rather than anecdotal, view of the increasing need for corrective maintenance, and to help asset managers to forecast maintenance requirements as breakers age.

4 - Comparing Gas Call Rates of Various SF6 Circuit Breaker Models

To focus further on gas calls, EPRI analyzed work orders to calculate the annual average gas call values of various SF6 breaker families as shown in Figure 2-6.

Annual Average Gas Call is calculated for each breaker using up to the last 10 years of maintenance history. Similar to the Annual Average CM discussed before, Annual Average Gas Call is calculated by summing the gas call counts for each breaker and averaging it annually by dividing by the number of years of recorded history. Annual Average Gas Call for breaker = (Number of Gas Calls incurred by breaker)/ (Number of Years over which work order histories were observed)

The table includes the percentage of breakers with gas calls. This is calculated for each model group by dividing the number of breakers in the group that have incurred at least one gas call corrective maintenance in the recorder history period by the total number of breakers in the group. As Figure 2-6 reveals, there are significant differences in average annual gas calls among the different breaker families. The ABB-PM, Siemens-TCP and GE-HVB have higher gas call work orders than the other three types and, even though the average ages of the Siemens and GE breakers are similar (24 and 28 years), there is a significant difference in the percentage of breakers with gas calls—62% of the GE breakers versus 27% of the Siemens breakers.

This type of representation allows “apple-to-apple” comparisons of gas breaker families with a single metric, the Annual Average Gas Call. The data can also be represented with a utility view to show which utilities have higher values in order to draw additional comparisons and inferences.

5 - Circuit Breaker Replacement Ranking

Because of the older demographic distributions common in many utilities, improvements are needed to provide more effective management of aging high-voltage circuit breaker fleets. Operating such equipment reliably and with a low risk of failure at or beyond typically assumed design lives is a subject of interest for many utilities. Consequently, developing and justifying a repair/replace (R/R) management strategy for these populations, and the rational basis for it, are increasingly important.

A rigorous repair versus replacement decision analysis would be mathematically quite complex and require many assumptions. However, an understanding of common utility asset management decision processes has allowed EPRI to develop a methodology to help identify candidate breakers for replacement and to rank a group of candidates in a rational and defensible fashion.

The circuit breaker replacement ranking methodology uses a risk-based approach designed to help utilities identify replacement candidates. It provides an analytical basis that is consistent and repeatable, objective and documented, risk based, and addresses regulatory concerns.

Using existing data, the methodology infers the relative costs and risks of keeping a breaker in service. Input parameters for applying this method are selected based on understanding how circuit breakers are built, operate, and wear and the selection and utilization of these parameter has been informed by review and analysis of circuit breaker IDB data.

The circuit breaker replacement rank (CBRR) is a function combining three major indices:

Functionality Index: How likely will the breaker be fit to continue operation?
O&M Index: What is the anticipated O&M cost that the breaker might incur?
Consequence Index: What are the consequences if the breaker fails to perform its function?

The method employs a relative ranking concept. The worst performer is assigned a maximum value of 100 and all remaining breakers are scaled proportionally. Figure 2-21 highlights the raw data curation, loading, consolidation and replacement ranking application process.

The CBRR algorithms utilize various weightings and thresholds. Analyses of circuit breaker IDB data using some of the metrics described earlier has informed and improved the selection of these values. Member utilities can work with EPRI to adapt the replacement ranking methodology and implement it to suit their unique situation and requirements.

EPRI releases a new version of the circuit breaker replacement software every year, which is available to funders of Program 34 or 34.002.

6 - Performance of Newer Breakers Based on Time to First Corrective Maintenance

Figure 2-1 shows Kaplan-Meier plots of the time to first CM for two specific breaker families; The colors mark the performance of these families at five different utilities. The populations of the different families vary among the utilities. The plots illustrate the different maintenance requirements of the families and reveal another insight: the performance of these families over this observation period is independent of the utility in which they are installed. It is quite reasonable to say that the circuit breaker performance in regard to need for maintenance in the first ten years is independent of how the breaker is used or maintained at a utility. In other words, it is an intrinsic characteristic of the breaker design. As shown in Figure 2-1, breaker families tend to behave similarly for first corrective maintenance (CM) requirements for younger breakers (< 10 years) at multiple utilities. The figure also shows that the spring breakers have a shallower slope than the hydraulic breakers. This indicates the hydraulic mechanisms require earlier CM compared to the spring breakers. Similar plots can be created for all the gas breakers, or families can be compared across utilities for benchmarking purposes.

7 - Maintenance Work Order Classification

The preceding examples used only the count of corrective maintenance work orders. Additional insights can be gained from understanding the specific maintenance done under each work order. Classification of corrective maintenance work orders into meaningful categories serves to more precisely associate breakers to the maintenance they have required. The EPRI maintenance template includes breaker work order classifications in four high-level categories as shown in Figure 2-4.

“Gas Calls” include work addressing gas containment subsystems
“Mechanism” covers work addressing mechanism components
“Others” encompasses all other work orders addressing circuit breaker functional failures
“CM Not Specified” denotes work orders with not enough information to classify

Extracting useful information from the work order descriptions and assigning them into meaningful bins is time and labor-intensive. EPRI is evaluating the use of Natural Language Processing as a means to make the process more efficient. See Applying Advanced Analytics to Improve Substation Asset Management and Maintenance: Assessing and Applying Natural Language Processing To Analyze Unstructured Text Records. EPRI, Palo Alto, CA: 2021.3002021202.

The effort put into classifying work orders yields potentially valuable insights into breaker maintenance.

For example, Figure 2-5 provides a breakdown of all corrective maintenance work orders over a ten-year period for eight utilities’ fleets of SF6 breakers. One observes that Gas Calls constitute 40-55% of the CM work orders for most of the utilities represented, that is, almost half of the corrective maintenance was for adding gas or fixing gas leaks.

Another observation is that for Utility B, Not Specified accounts for about 25% of maintenance records. This is because a number of work order descriptions were blank or lacked sufficient information to put into a classification for this utility.

In addition, Utility J’s Gas Call percentage is significantly lower than for the other utilities. It’s possible that Utility J is very effective in containing gas leaks, but may also be experiencing a high percentage of other maintenance issues in the Other CM category. This indicates that further exploration is needed to understand what is driving the Utility J results.

All these observations are potentially useful insights and also point to avenues for further investigation.