Transformer DC Resistance Tester also known as Transformer Winding Resistance Tester, it is a necessary testing project for transformer transition, overhauling and changing tap switch, it is also an important detecting project after fault. Transformer DC Resistance Tester is a quick test equipment for testing transformers, generators, motors, lines and other DC resistance.
Overview
Transformer DC Resistance Tester is integrated high-precision power supply and DC resistance test in a whole as a new instrument which not only maintain the original advantage but also greatly reduces the size and weight of the instrument and expands the measurement range. The instrument adopts the high-performance single-chip microcomputer control simple operation easy to carry fast testing speed high precision good retest strong anti-interference capability automatically complete the judgment of steady flow data acquisition and processing and display resistance can accurately complete the measurement of transformer dc resistance This instrument is the best testing equipment for power plant power supply enterprises medium and large-sized power transformer manufacturing industries and enterprises.
The Characteristics of the products
1. Large output current wide measuring range small size light weight simple operation;2.Fast test speed，high measurement accuracy，good retest capacity，strong anti-interference capability；
3. With perfect protective circuit and strong reliability;
4. With the function of discharge alarm sound of which the clear discharge indicating can reduce incorrect operations.
5. Using 192 * 64 large-screen LCD display display is clearly visible outdoor;
6. With high-speed micro thermal printer: can print measurement and historical data.
The Characteristics of the products
1. Large output current wide measuring range small size light weight simple operation;
2.Fast test speed，high measurement accuracy，good retest capacity，strong anti-interference capability；
3. With perfect protective circuit and strong reliability;
4. With the function of discharge alarm sound of which the clear discharge indicating can reduce incorrect operations.
5. Using 192 * 64 large-screen LCD display display is clearly visible outdoor;
6. With high-speed micro thermal printer: can print measurement and historical data.
2.Fast test speed，high measurement accuracy，good retest capacity，strong anti-interference capability；
3. With perfect protective circuit and strong reliability;
4. With the function of discharge alarm sound of which the clear discharge indicating can reduce incorrect operations.
5. Using 192 * 64 large-screen LCD display display is clearly visible outdoor;
6. With high-speed micro thermal printer: can print measurement and historical data.
According to different level of current Wuhan NANR Electric Co. LTD has developed several types of Transformer DC Resistance Tester they are NRZDC-5A NRZDC-10A NRZDC-20A NRZDC-40A NRZDC-50A NRZDC -100A etc.
Models
| Item | NRZDC Low Resistance Ohmmeter (20A~100A) | ||||||||||
| NRZDC-20A | NRZDC-40A | NRZDC-50A | NRZDC-100A | ||||||||
| Testing current | 20A 10A 5A 2A 1A | 40A 20A 10A 5A 2.5A | 50A 25A 10A 5A 2.5A | 100A 50mA 20mA 10A 5A | |||||||
| Testing range | 20A | 100μΩ ~1Ω | 40A | 100μΩ ~500mΩ | 50A | 100μΩ ~400mΩ | 100A | 50μΩ ~100mΩ | |||
| 10A | 500μΩ ~2Ω | 20A | 250μΩ ~1Ω | 25A | 250μΩ ~800mΩ | 50A | 100μΩ ~200mΩ | ||||
| 5A | 1mΩ ~4Ω | 10A | 500μΩ ~2Ω | 10A | 500μΩ ~2Ω | 20A | 200μΩ ~800mΩ | ||||
| 2A | 2mΩ ~10Ω | 5A | 1mΩ ~4Ω | 5A | 1mΩ ~4Ω | 10A | 500μΩ ~2Ω | ||||
| 1A | 5mΩ ~20Ω | 2.5A | 2mΩ ~8Ω | 2.5A | 2mΩ ~8Ω | 5A | 1mΩ ~4Ω | ||||
| Measurement accuracy | ±0.2% (full scale) ±2 digits | ||||||||||
| Data storage | 500 groups | ||||||||||
| Display | 192*64 Large screen LCD | ||||||||||
| Resolution ratio | 0.1μΩ | ||||||||||
| Supply | AC220V±10% Frequency: 50±1Hz | ||||||||||
| Environment temperature | -10℃ ~ 50℃ | ||||||||||
| Relative Humidity | ≤85%RH | ||||||||||
| Dimension | 430mm×250mm×265mm | 430mm×250mm×265mm | 430mm×250mm×265mm | 430mm×250mm×265mm | |||||||
| Weight | 12.5kg (does not include accessories) | ||||||||||
