A.?Working conditions
1.?Power supply: AC 220V±10%,50Hz
2.?Working environment: Temperature -10℃～40℃;?Humidity: ≤85%
3.?Atmosphere: 86-106kPa

B. Output power supply
1.?AC voltage: 0-220V/3A??Adjustable
2.?AC current: 0-100A/7V?(200A can be customized);? 0-20A/25V? Adjustable;?0-5A/5V? Adjustable
3.?DC voltage: 0-220V/3A? Adjustable
4.?DC current:0-20A/25V
5.?Fixed voltage output: DC 24V/48V/110V/220V
6. Current/Voltage accuracy: ±1%.

C. Performance Index
1.?Ammeter and voltmeter: 41/2?digit.
2.?Digital millisecond meter: 0-99.9999s(999.999s can be customized)?Resolution: 0.1ms.

D. Functions
1.?Measure relay: Measure start value,?return value and drop-off to pick-up ratio?of current,?voltage relay.
2.?Time relay: Measure start value,?return value and action time.
3.?Intermediate relay: Measure all kinds of coil with start. Remain start value,?return value,?holding value and action time of coil intermediate relay.
4.?Reclosing relay: Charge test of capacitance,?charge time,?reclosing time and middle components test.
5.?Differential relay: DC Excitation test,?Braking test,?Volt-ampere characteristic test.
6.?Other common relays?and LV circuit breaker.