The DTE-3M circuit breaker test device, in the following description of the “device”, is intended:
- To check the operability and control of the ampere-seconds characteristics of AC circuit-breakers of the industrial frequency in the range 20A-3kA, with measurement and recording of the time and current values passed through the circuit breaker;
- For checking and attestation of current measuring and protective current transformers, primary current;
- To check and calibrate current relays;
- To check and calibrate the thermal current relay;
- To test fuses;
Can be used as a regulated AC power source up to 3kA in low impedance power circuits for laboratory work.
Device DTE-3M is a portable device.