GDZC Series Transformer DC Resistance Tester
Introduction:
l It is used for testing, installing and exchanging the semi-finished or finished transformer.
l It's also a necessity for power department to do preventive trials.
l It can effectively help you to find disfigurements in the manufacturing of transformer
l such as the winding choosing, welding, loose joints, missing shares and hidden danger in the running.
l In order to meet the need of fast measurement of DC resistance,
l our company makes use of our technological advantage to develop the Micro Ohmmeter;
Features:
l It's suitable for large-scale transformer above240MVA in temperature rising tests.
l 840MVA transformer low-voltage direct-resistance tester completed within 2 minutes and the data is stable and accurate.
l Dual-channel shows the measurement data at the same time.
l Each interval of 60 seconds automatically print data.
l Equipped with temperature conversion software, curve waveforms.
Specifications:
Item | GDZC-2 | GDZC-10 | GDZC-20 | GDZC-40 | GDZC-100 | GDZC-20S |
Test current | 2A | 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~ 20ohm | 1μΩ~ 10ohm | 1μΩ~ 10ohm | 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% | |||||
