Impulse generators are designed to locate faults in power cable by the high voltage impulse method, in which a high-voltage impulse is transmitted down the cable to cause the fault to arc. The arcing fault is then pinpointed using an appropriate impulse detector. Megger impulse generators may also be used to perform voltage versus time acceptance tests, or to burn faults that fail to break down under impulse to reduce their resistance. Megger offers three models to meet your application: Dual-Voltage Model — This 80-lb (36kg) constant energy unit permits up to 450 Joules to be discharged over both the 7.5 and 15 kV ranges of the unit.