Transformer Resistance Test Instrument
Introduction
YRD and YRE type transformer resistance test instrument is applicable to measure the DC resistance of power and distribution transformers, current transformers upto 240MVA. It can also be used during temperature rise test.
Features
- 2 channels to measure the resistances simultaneously;
- Constant current technology;
- Color touch panel with easy operation;
- Interval time of 10s,30s and 60s for selection during temperature rise test;
- Automatically save and print the test data within the set timing;
- With temperature rise software to handle the test data;
- USB port to download the test data to USD flash disk for the temperature rise curve;
- 485 communication port to communicate with the computer;
- Protection if the tester is connected with 380V AC power supply;
- Discharge alarming;
Technical Parameters of YRD
Model | YR-20D | YR-40D | |
Output current | 20A,10A,3A,1A,0.3A | 40A,20A,10A,3A,1A,0.3A | |
Range | 0~130Ω | 0~130Ω | |
Accuracy | 0.2% readings ±0.2μΩ | 0.2% readings ±0.2μΩ | |
Resolution | 0.1μΩ | 0.01μΩ | |
Output voltage | DC50V | ||
Input power supply | AC220V±10%,50Hz±1Hz, DC12~24V/5A | ||
Dimension | 410m(L)*440mm(W)*210mm (H) | ||
Net weight | 15.8kgs |
Technical Parameters of YRE
Model | YR-20E | YR-40E | |
Output current | 20A,10A,3A,1A,0.3A,25mA | 40A,20A,10A,3A,1A,0.3A,25mA | |
Range | 0~40kΩ | 0~40kΩ | |
Accuracy | 0.2% readings ±0.2μΩ | 0.2% readings ±0.2μΩ | |
Resolution | 0.1μΩ | 0.01μΩ | |
Output voltage | DC50V | ||
Input power supply | AC220V±10%,50Hz±1Hz, DC12~24V/5A | ||
Dimension | 445m(L)*370mm(W)*210mm (H) | ||
Net weight | 15.8kgs | ||
Demagnetization function | reduce the remanent magnetization to prevent the difficulty of power on; |