APT

Model CBT556D Circuit Breaker Test Set With Both Sides Grounded and Dynamic Resistance Measurement , Model 556D could test three breaks dynamic resistance wavefroms, timing and synchronizing for graphite CB, GIS Switchgear and normal circuit breakers, even the grounding switches in close position: Besides, Model CBT556D also could be used to te 6 channel transition resistance, surface resstance and timing measurement.