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Help CenterMotor Stator Resistance/insulation/hipot/Inter-Turn Parameter Tester Performance Measuring Instrument
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Comprehensive measuring instrument for safety regulations can be used for the whole motor quality inspection test and quality control. The system adopts industrial control machine for centralised control, one wiring can complete all the test items, and the test results are automatically analysed, judgement, statistics, storage, printing (the printer needs to be provided by the party). All parameters of the user can be preset for calling when testing.
Testing items: DC low resistance, insulation resistance, electrical strength (leakage current test), turn-to-turn impact test.
1.DC resistance: Measure the line resistance (UV, VW, UW) between the three-phase windings of the product.
2.Insulation resistance: Measure the insulation resistance between the main coil and the core of the product.
3.Electrical strength: Measure the leakage current of the leakage current between the main coil and the iron core.
4.Turn-to-turn impact: Measure the voltage withstand test between layers within the same coil .
5.Using power supply: AC220V±10%, 50Hz±2 Hz (system working power).
6.Using environment: working temperature 0-40 ℃
Working humidity ≤90%
Winding DC Low Resistance
Apply DC to both ends of the winding, measure the temperature and winding resistance under the current environment, and convert to the resistance value under the specified temperature (20℃ or 25℃), with resistance resistance and resistance imbalance judgement.
Measurement range: 5mΩ~20000Ω
Measurement accuracy: ± (0.2% reading value + 5 words)
Temperature measurement: (0.0~60.0)℃, precision: ±0.5℃
Three-phase resistance unbalance rate: 0.0%~99.9
Insulation resistance (winding to case)
Test Conditions: DC 200V~1000V
Accuracy: ± (0.5% of set value +10V)
Resistance range: 1MΩ~2000MΩ
Accuracy: 1~100MΩ, ±(0.5%×display value+5 characters)
100-1000MΩ, ± (0.5% × display value + 5 words)
Test Time: 0.0-999.9S
AC withstand voltage (winding to case)
Test Conditions : 300~3000V AC
Voltage accuracy : ±(0.5% of reading +3V)
Current range: 0.10~5.00mA
Current accuracy: ± (0.5% of reading value + 5 characters)
Test time: 0.0-999.9S
Arc detection: 1-30 levels, 0 is off
turn to turn
Winding ends apply a certain amplitude, waveform impact voltage, oscillating waveforms and standard waveforms to compare the degree of difference before comparing the waveforms.
Comparison of turn-to-turn waveforms requires two ways: 1, with the sampling waveforms compared with each other. 2, two two windings compared with each other.
Peak pulse voltage: 500~3000V
Voltage accuracy: ± (0.5% of reading value +5V)
Wave front time: ≤0.5µs
Waveform acquisition Acquisition frequency: 5kHz~20MHz, resolution: 8-bit AD
Storage depth: 1k bytes, multiple tests: (1~30) times consecutively
Judgement mode Area, Difference product
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