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Current injector for testing automatic circuit breakers is intended:
- to test the functionality and control of ampere-second characteristics of AC circuit breakers in the range of 20A up to 3kA, and measuring and storing of values of time and current flowing through the circuit breaker, hereinafter CB;
- for the verification and certification of the current, measurement and protection current transformers with primary current;
- for testing and calibration of current relays;
- for testing and calibration of thermal current relays;
- to check the fuses;
- can be used as a source of regulated AC current up to 3kA in a low-impedance power circuits for laboratory works.
Parameters
Supply voltage, V: 220 V ± 10%
Freuency, Hz: 50/60
Max output current on busbars, kA (rms): 3
Max output voltage on busbars, V: 7
Output current measuring range (true rms), A: 20-3300
Current measurement reduced error, %: 3
Tripping time measuring range, seconds: 0.02-9999
Time measurement reduced error, %: 1.5
Temperature protection tripping, °С: 96±5%
Max power consumption, kVA: 55
Net weight, kg: 28,2
Dimensions, mm: 532x244x424
