Automatic circuit breaker tester up to 1 kA
Automatic circuit breaker tester UPA-1 is designed for testing and ampere-second characterization of automatic AC current circuit breakers. The device allows registering the value of the supplied current and timing the automatic circuit breaker switching interval.
Primary current injector UPA-1 is a mobile device, which could be easily transported to a required testing location.
Primary current injector UPA-1 operates on the principle of varying the power in the primary circuit of the matching power transformer and, respectively, varying the output current, flowing through the automatic circuit breaker under the test. Power regulation could be done either through an external regulator (RNO or VR) or through a built-in thyristor controller.
Single-phase AC power supply voltage, V
Power supply frequency, Hz
Maximum output current when powered from 220 V AC circuit, kA
Test current measurement range, kA
Reduced error of the test current measurement, %
Absolute error of the current flowing time and the switching off time measurement in the range from 50 ms to 990 ms, ms, max
Reduced error of the current flowing time and the switching off time measurement in the range from 1 s to 7200 s, %, max
Continuous running time under the maximum current, s, min
Maximum consumed power, kVA
Net weight of IT-1 (current supply), kg, max
Net weight of the control unit (without flexible busbars), kg, max
Net weight of the flexible busbar (length 1 m, cross-section 110 mm2), kg, max
Dimensions of the control unit, mm, max
Dimensions of the IT-1, mm, max
Lifespan, years, avg