DC resistance tester for tranformer dc winding resistance test
1.Brief introduction
This DC resistance tester is designed for measuring dc resistance of large capacity 3-phase power transformer. It can test three phase winding of transformer at the same time .
For on-load regulating transformer, tap switch can be directly adjusted without discharging, and the measuring time is one third of the traditional single-phase measurement, which can greatly reduce the working time and labor intensity. It adopts large LCD display, English graphic interface, clear and intuitive, easy to operate.
It is also equipped with a panel printer and a large capacity non-volatile memory, which can conveniently store and print the measurement results.The test data is stable, fast and repeatable, which is the best choice for field measurement of dc resistance of transformer.
Hot tags: Winding resistance tester, transformer DC resistance tester
2.Technical Specification
| Test current |
Single phase :1A 5A 10A 20A 40A
Three phase :1A 5A 10A 20A |
| Range |
Single phase : 1A 10mΩ~20Ω 5A 1mΩ~4Ω
10A 1mΩ~2Ω 20A 1mΩ~1Ω
40A 1mΩ~0.5Ω
Three phase : 1A 10mΩ~6Ω (each phase)
5A 1mΩ~1Ω(each phase)
10A 1mΩ~0.6Ω(each phase )
20A 1mΩ~0.3Ω(each phase ) |
| Accuracy |
±(0.2% full range±2 digits) |
| Max. resolution |
0.1μΩ |
| Data storage |
150 groups |
| Power |
AC 220V±22V,50Hz±2 Hz |
| Working environment |
Environment:0°~40° Humidity:≤80% |
3.Factory release test before cargo delivery for winding resistance tester
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