Introduction:
It is applied to measure the DC resistance of inductance circuit such as power transformer coil, current transformer coil and so on.
Also the tester could be applied to measure the cable resistance in 4-wire mode.
DC resistance measurement
Discharge the energy automatically when test is ended
Print the test results by micro printer
When the transformer is cross-connected, overhauled or some of its switches are changed, direct current resistance testing of the transformer winding is a must...
In general, to measure the transformer winding or large power output inductor 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, our company 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.
It is an ideal piece of equipment for measuring transformer windings and large power output inductor equipment.
Features:
Stable Input Current ,high power
Low noise , strong anti-interference ,reliable test result
Over-voltage ,over-current , misoperation , discharging and power off protection
Low weight and size , good performance in field
Many kind of current input ,wide range
Large Screen to display ,easy operation
Specification:
Item | GDZC-5 | GDZC-10 | GDZC-20 | GDZC-40 | GDZC-100 | GDZC-20S( Single&Three Phase) |
Max. Test Current | 5A | 10A | 20A | 40A | 25A,50A, 100A | Single phase: 1A, 5A, 10A, 20A, 20AThree phase: 1A, 5A, 10A, 20A |
Measuring range | 1mA :10Ω~20KΩ 10mA:1Ω~2KΩ 1A:10mΩ~20Ω 5A:1mΩ~4Ω | 1Ω -1000Ω (20mA) 100mΩ -100Ω (200mA) 10mΩ -20Ω (1A) 4mΩ -8Ω (2.5A) 2mΩ -4Ω (5A) 1mΩ -2Ω (10A) | 1μΩ~10Ω | 2.5A: 10mΩ ~8Ω 5A: 1mΩ ~4Ω 10A: 1Ω ~2Ω 20A: 1mΩ ~1Ω 40A: 1mΩ ~500mΩ | 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 | 1μΩ | 1μΩ | 1μΩ | 1μΩ | 1μΩ |
Max. Error | 0.2%RDG+2D | |||||
Voltage output : 20V | ||||||
Power supply : AC220V±10% , 50Hz/60Hz | ||||||
Working environment : -10℃ ~ +40℃ RH≤85% | ||||||
