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Tester function:

The tester is used for MCCB standard action test. When input 1.05 times of current into respective poles of MCB, no trip in 2h(ln63A, 1h), immediately higher  current up to its 1.3 times, trip within 2h(ln<63s,1h) . Controlled by computer,the MCCB standard tester starts  testing according to parameters
setted, judge  qualified situation,reserve result and build database.

Tester parameters:

1.Power voltage: 380V±10%，50Hz
2.Capacity:20kVA
3.Output current range: 500A～2000A, current(one station) 400-800type
4.Output current range:10A～500A, current(two station) 63-250type
5.Sinusoidal waveform degree of destortion＜5%
6.Current mutual inductor transform ratio: 400A～2000/5A, accuracy:0.2 grade
7.Current mutual inductor transform ratio: 10A～500/5A, accuracy:0.2 grade
8.Timer range: 1s-9h, resolution:1s
9.Insulation resistance≥5MΩ
10.System error≤±1%
11.Testing current display precision: ± 0.5%
12.Numeric keyboard to operate with communication interface