Brushless DC motor Stator Testing Machine Quality Analysis WIND-DTS
1. Advantage
1) Fast clamping fixture can be fitted for 3 terminal wires
2) Pneumatic fixutre is widely used to test 3 terminal wires or 6 end
wires
2.Testing item: all the testing items can be conducted alone or together.
1)DC resistance test
Testing range:0.01W - 1000W
Testing loop:6 loop(scalable)
Tolerance:±0.5 %
Testing method:Four points, with auto ambient temperature
correction function
2)Inductance test(including 3 phase balance test)
Testing range:10mH – 500mH
Testing loop:6 loop(scalable)
Tolerance: ±2.5%
Testing method:Four points
3)Turn to turn insulation
Pulse high voltage: 100V-3000V (100V / step)
Pulse peak: 0.5msec
Sampling frequency: 1-40 MHZ
Testing loop:6 loop(scalable)
Tolerance: ±2.5%
Judging method: area difference judgment (sensitive to inductance
and energy loss)
Standard waveform is White,OK waveform is Green, NG waveform is Red
4)Insulation resistance
Voltage:DC500V /1000V
Testing time:1-10s(adjustable)
Judging range:1-1000 MW
Tolerance: ±2.5%
5)Interphase insulation
Voltage:DC500V /1000V
Testing time:1-10s(adjustable)
Judging range:1-1000 MW
Tolerance: ±2.5%
6)Interphase hipot
Voltage:AC100-3000V (100V/step)
Testing time:1-10s(adjustable)
Judging range:0.1 mA -- 20 mA
Tolerance: ±2.5%
7)Hipot(with arc detection)
Voltage:AC100-3000V (100V/step)
Testing time:1-10s(adjustable)
Judging range:0.1 mA -- 20 mA
Tolerance: ±2.5%
8)Balance of resistance
Test method: DC resistance sampling
Testing time:0.1s
Judging method:percentage method adopted to judge the difference of
DC resistance between windings.
3.Testing time
| Item | DC resistance | Balance of resistance | Turn to turn short circuit | Insulation resistance | Hipot | Interphase insulation | Interphase hipot |
| Parameter | 0.05s/loop | 0.1s/time | 1 impulse/ time | 1s/time | 1s/time | 1s/time | 1s/time |
| Time | 1.5s/6 loop | 0.1s | 1s | 1s | 1s | 1s | 1s |
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