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Chuyên Thiết Bị / Products / Safety Tester / Transformer & Winding Tester /
Motor Rotor Testing System Microtest MT-6920
Motor Rotor Testing System Microtest MT-6920
Product Informations
- Manufacturer: Microtest
- Model: MT-6920
- Warranty: 12 months
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Category: Transformer & Winding Tester
Free shipping
For orders from 3,000,000 VND
Support 24/7
Even outside working hour
Contact Ho Chi Minh City
Tel: (028).3977.8269 / 0906.988.447
Email: sales@lidinco.com
Contact Bac Ninh, Ha Noi City
Tel: (0222).730.0180
Email: bn@lidinco.com
Other Contact: 
Danh mục sản phẩm
Descriptions
MICROTEST MT-6920 Motor Rotor Testing System combines the Interlayer Short-Circuit Tester (6920), the High Voltage Withstand Tester (7605), and the Multi-Channel Control Box (6908), with the 6920 serving as the main controller. It allows for the configuration of all measurement parameters and provides 24/48 test channels. The external PC software enables direct real-time access to test results from the 6920, as well as report generation and direct uploading of test results to a database.
MT-6920 Motor Rotor Testing System offers 24/48 channel testing capability for measuring the welding resistance of motor rotors. It integrates safety compliance, high-voltage insulation, and coil interlayer short-circuit testing into one system. It supports remote programming and data storage via PC connectivity software and can be equipped with PLC control. Customized test fixtures can be provided for rotor testing according to customer specifications.
Features
- 24/48 Channels
- Hipot/Leakage Current
- Insulation Resistance
- Winding Layer short Test
- Resistance Welding 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
SPEC
| Model | MT-6920 |
| Test Channel | 24/48 |
| DC Resistance Test (6920) | |
| DCR Range | 0.1mΩ-100kΩ |
| Measuring Mode | 4-Wire |
| DCR Accuracy | Low Resistance 0.1mΩ-1Ω±(0.2%±1mΩ) High Resistance 1Ω-100KΩ±0.1% |
| Safety Hi pot Test (7605) | |
| 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 (6920) | |
| Impulse Voltage (programmable) | 200V-3000V |
| 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. |
| 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. |
| 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. |
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 | 6920 | 5.7″ dot-matrix display (320*240) |
| 7605 | 4.3″ TFT LCD (480*272) | |
| Dimension (W*H*D) | 6920 | 435x190x522mm |
| 7605 | 435x145x522mm | |
| 6908 | 435x145x522mm | |
| Weight | 6920 | 15 Kg |
| 7605 | 14 Kg | |
| 6908 | 7 Kg | |
| Interface | RS-232 | |
