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Transformer winding resistance ohmmeter

Transformer winding resistance ohmmeter Transformer winding resistance ohmmeter
Product name:Transformer winding resistance ohmmeter
Item:6-7
Details:
 

Description of winding resistance ohmmeter

This ZRS series transformer winding resistance ohmmeter is the newest instrument for measuring DC resistance of windings of big power transformers. It may measure three windings simultaneously!

There is auto-discharge circuit for operator safety.

For OLTC transformer, there don’t need discharge. Test duration is only one third of those by conventional single-phase DC meter.

It adopts large-size LCD displayer, graphical interface displaying.

It is equipped with built-in thermal printer and big-capacity storage.

It is portable, light weight, not more than 13kg!

Main parameters

Code

ZRS-10A

ZRS-20A

Output current

Single-phase

1A,5A,10A, 20A

1A,5A,10A,20A,40A

3-phase

1A, 5A, 10A

1A, 5A, 10A, 20A

Measuring range

Single-phase

1A: 10mΩ~20Ω

5A: 1mΩ~4Ω

10A: 1mΩ~2Ω

20A: 1mΩ~1Ω

1A: 10mΩ~20Ω

5A: 1mΩ~4Ω

10A: 1mΩ~2Ω

20A: 1mΩ~1Ω

40A: 1mΩ~0.5Ω

3-phase

1A: 10mΩ~6Ω (each phase)

5A: 1mΩ~1Ω (each phase)

10A: 1mΩ~0.6Ω (each phase)

1A: 10mΩ~6Ω (each phase)

5A: 1mΩ~1Ω (each phase)

10A: 1mΩ~0.6Ω (each phase)

20A: 1mΩ~0.3Ω (each phase)

Accuracy

+/- 0.2%

Resolution ratio

0.1μΩ

Working temperature

0~40°

Relative humidity

≤90%

Electric power

AC220V,50Hz

Data storage

150 units

Note: There are also single-phase winding resistance ohmmeters and dual-channel winding resistance ohmmeters.

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