Transformer DC Resistance Tester | 50 Amper

Transformer DC Resistance Tester | 50 Amper DC resistance of the transformer will test the project of a transformer manufacturing semi-finished products, finished appearance test, installation, testing and transfer of power sector preventive trials, which can effectively find the transformer coil selection, welding, loose joints, missing stocks, disconnection and other manufacturing after the existence of hidden defects and running.

Features

Large output current, wide measuring range, small size, light weight, simple operation
High test speed, high precision, retest good, strong anti-jamming capability
With perfect protection circuit, high reliability
With discharge audible alarm function, clear discharge instructions , to reduce misuse

Technical Parameters

– Output currents: 50A, 25A, 10A, 5A, 2.5A

– Measure range;

50A: 100µΩ~400Ω
25A: 250µΩ~800mΩ
10A: 500µΩ~2Ω
5A: 1mΩ~4Ω
2.5A: 2mΩ~8Ω

– Resolution: 0.1µΩ

– Accuracy : 0.2%+2read.）

– Dimensions: 390mm×235mm×245mm

– Instrument weight: 12kg

– Operation Conditions;

Ambient temperature: －10℃~50℃
Humidity: ≦ 85%RH

– Power Supply: AC220V10%

Resolution	0.1μΩ
Range	100υΩ ~ 400Ω (50A) 250μΩ～800mΩ （25A） 500μΩ～2Ω （10A） 1mΩ～4Ω （5A） 2mΩ～8Ω ( 2.5A） 5mΩ～20Ω ( 1A） 10Ω～20kΩ (<5mA）
Accuracy	(0.2% + 2 Read)
Dimension	2906767mm
Operating Temperature	0 ~ 40 ℃
Humidity	≤90%RH
Weight	15 kg (device), 5 kg (cable box)

GENERAL INFORMATION

Why Measure Transformer Winding Resistance?

Transformer Winding Resistance Test; is to check the large differences between the windings and the gaps in the connections. Measuring the resistance of the transformer windings ensures that each circuit is properly connected and that all connections are tight. Measuring the resistance of the windings ensures that the connections are correct and the resistance measurement shows that there are no serious mismatches or trips.

What is Transformer Winding Resistance Tester?

It is an important diagnostic tool for assessing potential damage to transformers caused by poor design, poor assembly, abuse, unsuitable environments, overloading or inadequate maintenance. Winding resistance in transformers will change due to short circuits, loose connections or broken contacts in tap changers. Regardless of configuration, resistance measurements are normally done phase-to-phase and the readings are compared with each other to determine if they are acceptable.