Transformer DC Winding Resistance And Turn Ratio Integrated Tester

I.summary

At present, transformer DC resistance test and transformer ratio group test are the necessary items for transformer outage maintenance. To complete the above-mentioned test, transformer DC resistance tester and transformer ratio group tester need to be equipped separately. However, there are many manufacturers of the above two kinds of instruments, and their functions and wiring are different. In addition, two kinds of instruments are needed to be carried in each test, namely, transformer DC resistance tester and transformer ratio group tester. Because of the different functions of the two instruments, it is necessary to do two test preparations and two wiring and disconnection, which will greatly reduce the work efficiency. HZZB-II transformer DC resistance ratio tester solves the above problems. One instrument can carry out two tests: direct resistance test and ratio test. The screen adopts large screen high-resolution LCD screen, which is convenient for field use, has menu prompt function, easy and intuitive operation, completes three-phase direct resistance test and three-phase ratio test at one time, and has fast test speed and high accuracy.

III.Technical Index

3.1 Variable ratio test

3.1.1 Range:0.9~10000

3.1.2 Accuracy:±(reading×0.1%+2 words)(≤ 500)     

±(reading×0.2%+2 words)(>500 ≤ 3000)

±(reading×0.3%+2 words)(>3000)

3.1.3 Resolution ratio:0.9~9.9999(0.0001) 100~999.99(0.01)  10000

10~99.999(0.001) 1000~9999.9(0.1)

3.2 Direct resistance test

3.2.1 Range:10A      1.000mΩ~1Ω      1  A      100.0mΩ~20Ω

5 A      10.00mΩ~4Ω      0.2A      1.000 Ω~100Ω

5A + 5A  10.00mΩ~1Ω      0.2A+0.2A  1.000 Ω~50Ω

1A + 1A  100.0mΩ~5Ω

3.2.2 Accuracy:±(reading×0.2%+2 words)

3.2.3 Maximum resolution ratio:0.01uΩ

3.3 Working power supply:AC220V±10%, 50/60Hz

3.4 Environment temperature:-10℃~50℃  Relative humidity:<90%,No condensation

3.5 Instrument Dimensions:390mm×280mm×190mm

3.6 Instrument weight:9kg(Excluding test lines)

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.