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20A High Precision Automatic Transformer DC Winding Resistance Tester
| Place of Origin | China Mainland |
|---|---|
| Brand Name | MINGYANG |
| Model Number | MY-RD |
| Minimum Order Quantity | 1 |
| Price | 2500 usd |
| Packaging Details | carton |
| Delivery Time | 1 week |
| Payment Terms | L/C,D/A,D/P,T/T,Western Union |
| Supply Ability | 1000pcs/month |
Product Details
| Measuring Range | 30μΩ-20KΩ | Accuracy Class | 0.5% |
|---|---|---|---|
| Operating Temperature | -10℃~40℃ | Time Resolution | 1s |
| Current Resolutio | 1μΩ | Place Of Origin | Hubei, China |
| Resolution | 1μΩ | Measurement Accuracy | 0.5% |
| Measurement Range | 1-1999μΩ | Working Power Supply | AC220V ± 10%, 50Hz ± 1Hz |
| Weight | 12kg | Display Mode | Three-and-a-half-digit LCD |
| Volume | 380*350*260 Mm | Warranty | 2 Year |
| Product Name | DC Resistance Tester | Output Current | 20A-60A |
| Minimum Resolution | 0.1μΩ | Working Temperature | -10℃-40℃ |
| Working Voltage | AC220V±10% | Working Humidity | <90%RH |
| Highlight | 20A transformer resistance tester,automatic winding resistance tester,high precision DC resistance tester |
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Product Description
20A High Precision Automatic Transformer DC Winding Resistance Tester
The 20A/40A/50A/60A DC resistance tester is primarily designed for measuring DC resistance in large and medium-sized transformers, generators, motors, and similar equipment. Featuring multiple current ranges, this instrument accommodates diverse measurement requirements across various applications.
Basic Info.
Model NO.
MY-RD
Output current
100A, 50A, 20A, 10A, 5A
Min. resolution
0.1μΩ
Accuracy
±(0.2%+2digits)
Relative humidity
<90%RH(no condensing)
Size
440*245*395mm
Weight
instrument: 19.5kg; accessory case: 7.5kg
Transport Package
Wooden Case
Specification
ISO, SGS
Trademark
MINGYANG
Origin
Wuhan China
Production Capacity
3000 Sets/Year
Product Description
General Information
Transformer DC winding resistance is a required test item for the factory test, installation, overhaul, change of tap switch, handover test and preventive test of power department. It can check the welding quality of the winding joints and whether there is a short-circuit between the windings. It can detect whether the contact of each position of the voltage tap switch is good, and whether the actual position of the tap switch is consistent with the indicated position, whether there is a fracture of the lead wire, whether there is a broken strand of multi-strand wire and winding.
MY-RD Transformer DC Winding Resistance Tester is designed in order to meet the needs of rapid measurement of transformer DC winding resistance. The instrument adopts a new power supply technology, featuring small size, light weight, large output current, good repeatability, strong anti-interference ability and perfect protection function. The whole machine is controlled by high speed single chip microcomputer, high automation, with automatic discharge and discharge alarm function. The instrument has high precision and easy operation, which can realize the rapid measurement of transformer DC winding resistance.
Key Features
- High-speed microcontroller control with full automation and intuitive operation
- Advanced power supply technology with multiple current ranges and extensive measurement capabilities
- Temperature conversion function for both copper and aluminum materials with touch input for winding temperature and conversion temperature
- Comprehensive protection system that reliably safeguards against back electromotive force impacts
- Audible discharge alarm with clear discharge indicators to prevent operational errors
- Rapid response capability allowing direct on-load tap changer switching during measurement with automatic data refresh
- Seven-inch color touchscreen display with freely switchable Chinese/English interface
- Built-in perpetual calendar clock with power-off storage capacity for 1,000 test datasets
- RS232 and USB interfaces for computer communication and USB flash drive data storage
- Mobile app compatibility for remote control and test data upload via software
Specification
|
Output current |
100A, 50A, 20A, 10A, 5A |
|
Min. resolution |
0.1μΩ |
|
Measurement range |
At 100A: 50μΩ~100mΩ; at 50A: 100μΩ~200mΩ; at 20A: 200μΩ~800mΩ; at 10A: 500μΩ~2Ω; at 5A: 1mΩ~4Ω |
|
Accuracy |
±(0.2%+2digits) |
|
Working temperature |
0ºC~40ºC |
|
Relative humidity |
<90%RH(no condensing) |
|
Size |
440*245*395mm |
|
Weight |
instrument: 19.5kg; accessory case: 7.5kg |
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