Refine On (Hebei) Electric Power Technology Co., Ltd. is one of the leading manufacturers and suppliers of transformer dc resistance tester in China. If you're going to wholesale durable transformer dc resistance tester, welcome to get quotation from our factory. All customized products are with high quality and competitive price.
The transformer dc resistance tester (model: NRB200-10) uses 32-bit ARM control and new power supply technology. It functions as a dc low resistance tester, transformer resistance meter, digital winding resistance meter, and Transformer DC Winding Resistance Meter. The 800×480 true color LCD touch screen supports touch/button dual operation with voice broadcast.
Product Parameters
|
Parameter |
Specification |
|
Output current |
<5mA, 40mA, 200mA, 1A, 5A, 10A, AUTO |
|
Resolution |
0.1μΩ |
|
Measuring range |
0.5mΩ～50KΩ (auto) |
|
Accuracy |
<0.2%±2 words |
|
Working temperature |
-10～40℃ |
|
Humidity |
<80%RH |
|
Interface |
RS232 + USB |
Product Advantages
Multiple current gears with automatic load-based selection. Intelligent power management reduces internal heat. Perfect back-EMF protection ensures reliable operation. Sound alarm and discharge indication prevent misoperation. No-power-off memory permanently saves data.
Main Applications
The transformer dc resistance tester (model: NRB200-10) is used for factory testing, handover testing, preventive maintenance, tap-changer verification, and winding integrity checks on power and distribution transformers.
Related Products
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Frequently Asked Questions (FAQ)
Q: How do I know which current gear to select?
A: Refer to the range table: 10A for 0.5mΩ～2Ω, 1A for 10mΩ～20Ω, 200mA for 100mΩ～100Ω, 40mA for 500mΩ～500Ω, and <5mA for 10Ω～50KΩ. When uncertain, use AUTO mode.
Q: Why does the instrument stay in "charging" state for a long time?
A: The selected current gear is too high for the sample resistance, preventing the current from reaching the preset value. Select a lower current gear appropriate for your sample.
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