Microtest 6917 Motor Stator Test Sistemi

Features

• 17 Channels
• Hipot/Leakage Current
• Insulation Resistance
• Winding Layer short Test
• Steering test
• Inductance Test
• It can test multiple sets of DUTs simultaneously
• 4-Wire DC Resistance measurement will be more accurate than others
• The Impulse/Surge with waveform comparison is a non-destructive analysis
• Chinese/English screen could be switched arbitrarily

Specifications

Selection  Model  6917  6913  6913L  6910  Test Channel  17 13  13 8  DCR Range  0.1mΩ-100kΩ  0.1mΩ-100kΩ  0.1mΩ-150Ω  0.1mΩ-100kΩ DCR Accuracy Low Resistance 0.1mΩ-1Ω ±(0.2%±1mΩ) Low Resistance 0.1mΩ-1Ω ±(0.2%±1mΩ) Low Resistance 0.1mΩ-200mΩ ±(0.1%±0.5mΩ) Low Resistance 0.1mΩ-1Ω ±(0.2%±1mΩ) High Resistance 1Ω-100KΩ ±0.1% High Resistance 1Ω-100KΩ ±0.1% High Resistance 200mΩ-1Ω ±(0.1%±2mΩ 1Ω-150Ω ±0.5% High Resistance 1Ω-100KΩ ±0.1% SPEC Model 6917 DC Resistance Test DCR Range 0.1mΩ-100kΩ Measuring Mode 4-Wire Safety Hi pot Test AC Output Voltage 100V-3000V AC Leakage Current 0.001mA-10mA AC Arcing Detection Detect gears from 0-9 DC Output Voltage 100V-3000V DC Leakage Current 0.001mA-5mA DC Arcing Detection Detect gears from 0-9 IR Output Voltage 100V-1000V Insulation Resistance 1-9999MΩ Measuring Time 0.1-99.9s Continuously adjustable Voltage Accuracy ±(3% of setting+5V) Impulse Winding Test Impulse Voltage (programmable) 200V-5000V Impulse Voltage Accuracy ±2% Total area comparison When layer short happened, the loss of power on coil increase, the resonance damping coefficient increase, resonance amplitude decrease, the total area decrease. These are the basic parameters we check layer short. By calculating and comparing the deference of area between golden sample and DUT. Show by percentage Analysis the power loss by this data. Differential area comparison Add up the difference between normal wave and DUT wave call “ Area differential”. When layer short happened, the inductance reduce(similar the transformer). The wave phase change and the area differential also change. This will show “fail” on the instrument. However, the parameter might cause deviation because of the deviation of inductance, resonance phase shift. (Silicon steel product such as motor and traditional transformer is not suitable) By calculating and comparing the deference of area between golden sample and DUT. To determine the degree of waveform overlap. Compare the inductance by this. Wave comparison Set a acceptable wave range, if the DUT’s wave is in this range shows “pass” otherwise, “fail” This parameter can judge both amplitude and phase of resonance wave. This can increase the detection capability of layer short. Corona comparison In pulse test, the insulation defect will cause discharge and create corona. This function is able to count the times that corona happened base on the degree of deviation. Detect the discharge phenomenon on the coil. Flat comparison If the layer short happened, the waveform will tremble. Therefore, the instrument will quantize and compared it. Inductance Measurement (Option LCR Meter 6365) Inductance Ranges 0.1nH - 99.999KH Test Frequency 10Hz-200kHz Frequency Output Accuracy ±0.01% Frequency Resolution 5 Digits AC Drive Level 10mV to 2Vrms (1m Vrms resolution) Basic Accuracy ±0.1% Three-phase Inductance Balance Test Comparison Mode

• The absolute value of the difference between the two sets of coil inductance

• The ratio of the absolute value of the difference between the two sets of coil inductance to the standard value

• The ratio of the absolute value of the difference between the inductance of the two sets of coils and the average value of the measured resistance of the three sets of coils

SYSTEM Test fixture According to the test requirements Indicator Pass/Fail Screen Diaplay/Sound Built-in Storage Storage of 100 rewritable data sets Operation Manual, RS-232 Power Supply Voltage 90-132Vac or 198-264Vac Frequency 50/60Hz Power consumption 300VA Environment Temperature 10℃-40℃ Humidity 20-90%RH Display 6917 5.7" dot-matrix display (320*240) 7605 4.3" TFT LCD (480*272) 6365 7.0" TFT (800*480) Dimension (W*H*D) 6917 435x190x522mm 7605 435x145x522mm 6365 435x145x522mm Weight 6917 15 Kg 7605 14 Kg 6365 3 Kg Interface RS-232