Circuit breaker testers

Mobile UPA-series systems from KharkovEnergoPribor Ltd. are used for testing the trip functionality and time-current characteristics of circuit breakers with thermal and electromagnetic tripping units.

These systems allow to supply high current to a circuit breaker under test for very short periods of time. Pairing UPA systems with an external voltage regulator makes it possible to obtain a sinusoidal output current which guarantees highly accurate results of time-current characteristics testing of overcurrent protection devices.

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