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

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10 A micro ohm meterMIKO-10 enables measurements at following objects:High-voltage or auto circuit breakers;Releasing, connecting or disconnecting switches, contactors and relays;Bolted, welded and brazed joints of current leadsand busbars;Rai