Description
An auxiliary metering input is provided and can measure voltage, current, frequency, and the phase between any of the current outputs and an external voltage or current. The timing system is very flexible without compromising ease of use, allowing trip times, reset times and reclose times to be quickly measured to a high degree of accuracy. Two independently isolated contact inputs are provided, and the timing system may also be used as a stand-alone timer. The 50A-3ph can be used to test many types of single and three phase secondary protection including:
- Over and under current relays
- IDMT relays
- Auto-reclosers
- Time delay relays
- Earth fault relays
- Miniature circuit breakers
- Power relays
- Tripping relays
- Thermal relays
When used in conjunction with a DVS3 3 phase voltage source the 50A-3PH mk2 Secondary Current Injection may be used to test most types of protection requiring three voltages and three currents including:
-
Directional overcurrent relays
-
Distance protection relays
-
Phase angle relays
-
Power transducers
-
Power relays