Measuring the contact resistance of EHV (Extra High Voltage) circuit breakers is important for several reasons. First, it is a key parameter for evaluating the performance of the circuit breaker. Excessive contact resistance increases the likelihood

How does hand held partial discharge tester function? A handheld partial discharge tester is a portable device used to detect and diagnose hidden electrical faults known as partial discharges (PD) in high-voltage equipment. These testers typically em