Videos

Training Video for Measuring Transmission Line Grounds Using the Fall of Potential Method
Proper grounding of transmission towers is critical to power line safety and reducing lightning related outages. It is important to measure the low-frequency impedance of a transmission line ground electrode in order to ensure that it is in good working order. The Fall of Potential method (FOP) is one technique used to measure the grounding impedance of transmission lines. This animated video provides step-by step instructions on how to connect the equipment to the transmission line, how the technique works, and how to perform a measurement.

Training Video for Measuring Transmission Line Grounds Using the Clamp-On Method
Proper grounding of transmission towers is critical to power line safety and reducing lightning related outages. It is important to measure the low-frequency impedance of a transmission line ground electrode in order to ensure that it is in good working order. The Clamp-on method is one technique used to measure the grounding impedance of transmission lines. This animated video provides step-by step instructions on how to connect the equipment to the transmission line, how the technique works, and how to perform a measurement.

Directional Testers for Measuring the Ground Resistance of Transmission Structures Training Video Grounding is an essential part of any electrical installation for safe and reliable operation. Measuring the ground resistance is important for lifecycle management of the grounding system. This 10-minutes video examines directional testers and the advantages they offer in for field testing ground resistance when overhead ground wires cannot be disconnected from transmission structures.

Training Video for Measuring Transmission Line Grounds Using the Zed-Meter Proper grounding of transmission towers is critical to power line safety and reducing lightning related outages. It is important to measure the impedance of a transmission line grounding systems in order to ensure that it is in good working order. The Zed-MeterTM, developed by EPRI, uses a high frequency method for testing, which has proven to be better for measuring the lightning surge impedance of tower footings and grounding systems. This animated video provides step-by-step instructions on how to connect the equipment to the transmission line, how the technique works, and how to perform a measurement.