BLDC Motor Stator Tester DC Resistance Inductance Surge Isolation
Hi-Pot Rotation WIND-DTS-300
https://youtu.be/Ut1FHxzdMME
(1) Stator tesing machine competitive advantages
1. Testing Items Modular design,
Each testing item including DC resistance,Inductance test,Surge
Test, Insulation Resistance,
Hi-pot was modularized to a separate testing circuit board.
2. This testing machine were delivered 15pcs to 20pcs every month
for motor manufacturers.
(2) Test Items
1. DC resistance test (include 3 phase balance test,phase
equilibrium test)
Test range: 0.001Ω--1000Ω
Test loop: maximum 4 loop (expandable)
Repeat Test accuracy: ≤±0.5%
Test method :Four points,with auto correctting ambient temperature
function
Or Infrared sensor temperature compensation (Optional)
Can eliminate temperature-induced changes in resistance
2. Inductance test
Test range:0.1µH – 999H
Test loop: maximum 4 loop (expandable)
Repeat Test accuracy: ≤±1.0%
Test method :Four points ensure the accuracy
3. Surge test
Pass high voltage between phases
Test condition: AC 100V-3000V adjustable
Pulse peak :0.5msec
Sampling frequency:0 - 20MHz
Test loop: 4 loop
Repeat Test accuracy:< ±2.5%
Judging method:By area difference(Sensitive to inductance and
energy loss)
Standard waveform is White,OK waveform is Green, NG waveform is Red
4. Insulation Resistance
Test condition: DC 500V / 1000V
Range: 0.1MΩ～1000MΩ
Tolerance: ±2.5%
5. Hi-pot (Dielectric strength) AC 100-1000V
Testing time:1~10s (0.1s/time)
Range:0.1-20 mA
Tolerance:≤±2.5%
6. Rotation direction test
Clockwise/ Anti-clockwise
(3) Technical Data
Test item
|
DC resistance/inductance
|
Surge
|
Isolation resistance
|
Hi-pot
|
Para set
|
1s/Loop
|
1time/Pulse
|
1 s/ time
|
1s/time
|
Test time
|
3s
|
1s
|
1s
|
1s
|
(4) Cycle Time
About 6seconds
HS Code:9030390000
