DC resistance measurement of transformer winding is an essential test during transformer delivery, repair and changing tapping switch. Usually, it is a time consuming task to use traditional methods (bridge method and voltage step down method) to measure transformer winding and DC resistance of high-power inductive device. In order to change this situation: shorten measurement time and reduce the staff’s workflow, our company has developed ZDC Transformer DC Resistance Tester.
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. Adopting high speed micro-controller to automatically complete the judgment of steady flow, data acquisition and processing and display resistance;
4. Using 192 * 64 large-screen LCD display, outdoor display is clearly visible;
5. Built-in high-capacity a non-volatile memory, can store 500 sets of measurement data;
6. With functions of automatic discharge and discharge indicator to reduce the wrong operation and ensure safety of equipment and personnel.
| Parameter | ZDC Transformer DC Resistance Tester (20A~100A) | |||||||
| ZDC-20A | ZDC-40A | ZDC-50A | ZDC-100A | |||||
| Testing current | 20A、10A、5A、2A、1A | 40A、20A、10A、5A、2.5A | 50A、25A、10A、5A、2.5A | 100A、50A、20A、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 | |
| Measure precision | ±0.2%（full scale）±2digit | |||||||
| 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 | |||||||
Also called as:
DC Resistance Rapid Tester, Transformer DC Resistance Tester, Transformer DC Resistance Rapid Tester, Transformer Winding DC Resistance Tester, Inductive Load DC Resistance Rapid Tester, Inductive Load DC Resistance Tester, Sensual loaded DC resistance tester.