digital 20A transformer Winding dc resistance tester

I.  dc resistance tester Introductio

The DC resistance is the transformer’s semi-finished product, finished product test, installation, commissioning test, and electric part prevention test necessary test project,the transformer coil can effectively find the device welding, connecting parts loose, missing unit, disconnection, and other manufacturing default and other hidden danger occurred after operation.

The DC Resistance transformer to meet fast measurement requirement, we developed HZ-3120A DC Resistance Tester. The instrument is a new powerful technology, small size, light weight, high output current and other characteristics.

The device is controlled by the microcontroller, with a high degree of automation, automatic discharge functions. It is a test instrument of high precision, simple, direct way to achieve fast transformer measurement.

IV.  dc resistance tester Technical Data

1. Output current:<5mA ,1A,2.5A,5A ,10A,20A

2. Resolution:0.1μΩ

3. Range:   100μΩ~1Ω      (20A)

                   500μΩ~2Ω      (10A)

1mΩ~4Ω         (5A)

                             2mΩ~8Ω        (2.5A)

                             5mΩ~20Ω         (1A)

                            10Ω~20KΩ       (<5mA)

4. Accuracy:±(0.2%+2 Readings) 

5. Operating temperature:0~40℃

6. Ambient humidity:≤90%RH,(non condensed)

7. size:400mm*225mm*350mm.

8. Instrument weight :13kg, wiring case:5kg.

From the date of purchase within one year instrument, is a product quality problem free repair replacement, lifetime supply of maintenance and technical services. The instrument has found anomalies or malfunctions please contact us to arrange the most convenient treatment options.

HuaZheng Electric Manufacturing (Baoding) Co.,Ltd is  founded in 2008,the supplier of the State Grid in China.It means we are the supplier of the Chinese Government.And our products spread throughout the whole China.

Our main products : Insulation Oil Tester, Cable Fault Locator, High Voltage Generator,transformer tester, relay protection tester,insulation resistance  tester,Power Quality Analyzer and so on.

Close to Tianjin port, the transportation is convenient. our customers come from More than 50 countries, like America, England, Bulgaria, Brazil, Chile, Malysia, Vietnam and so on.

What's more, gurantee 1 year,life long maintance .Products through the CE, ISO, IEC certification, quality and reliable, factory price.

Warmly welcome all partners to join us for mutual benefits cooperation.