Introduction
When the transformer is cross-connected, overhauled or some of its switches are changed, direct current resistance testing of the transformer winding is necessary;
In general, to measure the transformer winding or large power output indicator equipment, the traditional electrical bridge method and pressure drop method require much time and energy.
Thus, to shorten the measurement time and reducing the workload of testers, we developed rapid direct current resistance tester, which is designed with new power supply technology and stable performance, fast measurement, compact, easy to use, high accuracy, good data reproducibility.
Transformer Coil Resistance Testing Equipment is an ideal equipment for measuring transformer winding and large power output inductor equipment.
Features:
Specifications:
Item | WRT-2A | WRT-5A | WRT-10A | WRT-20A | WRT-40A | WRT-100A | WRT-20S | |
Test current | 2A | 5A | 10A | 20A | 40A | 25A,50A, 100A | Single phase: 1A,5A,10A,20A, 40A Three phase: 1A, 5A, 10A, 20A | |
Measuring range | 1μΩ~ 4.5kohm | 1μΩ~ 20kohm | 1μΩ~ 20kohm | 1μΩ~ 10kohm | 1μΩ~ 10kohm | 50μΩ-200mΩ(100A)
100μΩ-400 mΩ(50A)
200μΩ-800 mΩ(25A) | Single phase: 10mΩ~20Ω(1A) 1 mΩ~4Ω(5A) 1 mΩ~2Ω(10A) 1 mΩ~1Ω(20A) 1 mΩ~0.5Ω(40A)
Three-phase: 10 mΩ~6Ω (1A,each phase) 1 mΩ~1Ω (5A,each phase ) 1 mΩ~0.6Ω (10A,each phase ) 1 mΩ~0.3Ω (20A,each phase ) | |
Resolution | 1μΩ | |||||||
Max. Error | 0.2%RDG+2D | |||||||
Voltage output | 20V | |||||||
Resolution | 1μΩ | |||||||
Power supply | AC220V±10%% 50Hz/60Hz | |||||||
Working environment | -10℃-+40℃ RH≤85% |