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Transformer DC Winding Resistance Tester , also termed transformer ohmmeter, is the newest product for DC resistance measurements of transformers. It’s particularly designed for the DC resistance of three-phase windings in high-capacity transformers, allowing for simultaneous testing of all three phases.
KVZR-20S Three Phase Transforerm DC Winding Resistance Tester
Overviews
Transformer DC Winding Resistance Tester , also termed transformer ohmmeter, is the newest product for DC resistance measurements of transformers. It’s particularly designed for the DC resistance of three-phase windings in high-capacity transformers, allowing for simultaneous testing of all three phases. With this device, there is no need to discharge the tap changer for on-load voltage regulating transformers, and the measurement process is three times faster than the traditional single-phase approach, thus greatly reducing work time and effort. The tester features a large-screen LCD with an intuitive graphical interface, simplifying operation. It includes a panel printer and extensive non-volatile memory for straightforward storage and printing of results. The device ensures stable, rapid, and consistent test data, making it an excellent choice for on-site transformer DC resistance testing.
Technical Data
| 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 (per phase) 5A 1mΩ-1Ω(per phase) 10A 1mΩ-0.6Ω(per phase) 20A 1mΩ-0.3Ω(per phase) |
| accuracy | ±0.2%(full range) |
| Max.resolution | 0.1μΩ |
| Data saving capacity | 150 group |
| Power | AC 220V±22V，50Hz±2 Hz |
| Working environment | Environment temperature:0-40℃ Relative humidity: ≤80% |
