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INTRODUCTION

DC resistance measurement of transformer winding is an essential test project during transformer delivery, repair and changing tapping switch. Usually, it is a time consuming task to use traditional methods (bridge method and voltage drop method) to measure transformer winding and DC resistance of high-power inductive device. In order to change this situation: shorten measurement time and reduce the staff’s workflow, our company has developed DC resistance rapid tester. The instrument using new power technology, with characteristics such as stable performance, rapid test, small size, light weight, easy operation, high measure precision and good data reproducibility, is the ideal equipment to measure transformer winding and DC resistance of high-power inductive device.

MAIN FEATURES

1,Small in volume, light in weight.
2,Easy to operate.
3,Fast test, test results accurate and stable
4,Can auto discharge and with discharge indicates function, to ensure the safety for equipment and people.
5,With micro-printer, can print test results.

SPECIFICATION

Working Conditions

Temperature:0℃~40℃

Relative humidity:≤85%RH

Measure Current1A, 5A, 10A, 20A
Measurement range

1A        10mΩ~20Ω

5A        1mΩ~4Ω

10A       1mΩ~2Ω

20A       1mΩ~1Ω

Resolution0.1μΩ
Accuracy±0.2%(full range)
Data Storage255
DisplayLCD(Remark:Resistance display: 4 1/2 bits)

Power Supply

AC 220V±22V,50Hz±2 Hz    Remark:Fuse 5A
Power consumption≤300W,  Remark: Test current 10A
Dimension  400mm(L)×280mm(W)×200mm(H)
Instrument weight6kg

Accessories


Serial NumberNameAmount
1Hostone
2
AC 220V Power line
one
3Test lineone
4Printing Paperone
5Test lineone
6Ground leadone
7Fusethree
8Manualone


SELECTION GUIDE

Model No.Measure CurrentConstant current sourceResolution/AccuracyWorking VoltagePower consumptionOthers

MEWOI-AZC-1A-Transformer-DC-Resistance-Tester-for-Transformer-Winding_80.jpg

MEWOI-AZC-1A

1A
1A(1μΩ~20mΩ、20mΩ~200mΩ、0.2Ω~2Ω);100mA(2Ω~20Ω);5mA(20Ω~200Ω);500uA(200Ω~2kΩ);50uA(2kΩ~20kΩ)。

1uΩ,

±(0.2%+2d)

DC:12V~16.8V;or AC:220V≤15W-

MEWOI-AZC-2A-Transformer-DC-Resistance-Tester-for-Transformer-Winding_80.jpg

MEWOI-AZC-2A

2A

2A(1μΩ~20mΩ、20mΩ~200mΩ、0.2Ω~2Ω);

200mA(2Ω~20Ω);

10mA(20Ω~200Ω);

1mA(200Ω~2kΩ);100uA(2kΩ~20kΩ)。

1uΩ,

±(0.2%+2d)

DC:12V~16.8V;or AC:220V≤15W-

MEWOI-AZC-3A-Transformer-DC-Resistance-Tester-for-Transformer-Winding_80.jpg

MEWOI-AZC-3A

3A

3A(1μΩ~20mΩ、20mΩ~200mΩ、0.2Ω~2Ω);

300mA(2Ω~20Ω);

15mA(20Ω~200Ω);

1.5mA(200Ω~2kΩ);200Ω~2kΩ。

1uΩ,

±(0.2%+2d)

DC:12V~16.8V;or AC:220V≤15W-

MEWOI-AZC-5A.DC-Power-Transformer-Winding-resistance-tester-5A_80.jpg

MEWOI-AZC-5A

5A

5A(20mΩ~2Ω),

0.5A(20Ω);

0.05A(200Ω);

0.005A(2000Ω)

0.1uΩ,

±(0.5%+2d) 

Rechargeable battery or AC220V 50HZ (±10%)≤100WPrinter

MEWOI-YHZ1010-DC-Low-Resistance-tester.80.jpg

MEWOI-YHZ1010

10A

0.5mΩ~ 0.82Ω(10A)

1mΩ-2Ω(5A)

5mΩ-10Ω(1A)

100mΩ-50Ω(200mA)

1Ω-250Ω(40mA)

100Ω-20KΩ(<20mA)

0.1uΩ,

±(0.2%+2d)

Rechargeable battery or AC220V 50HZ (±10%)
Printer/RS232/USB

MEWOI-ACZ-20A-Winding-Resistance-Ohmmeter_80.jpg

MEWOI-AZC-20A

20A

1A (10mΩ~20Ω)

5A (1mΩ~4Ω))

10A  (1mΩ~2Ω)

20A  (1mΩ~1Ω)


0.1uΩ,

±(0.2%+2d)


AC 220V±22V,50Hz±2Hz   Remark:Fuse 5A

≤300W,  Remark: Test current 10A

Data:255sets,

Printer

MEWOI-ACZ-40A-Winding-Resistance-Ohmmeter_80.jpg

MEWOI-AZC-40A

40A

2.5A(10mΩ~20Ω),

5A(1mΩ~4Ω);

10A(1mΩ~2Ω);

20A(1mΩ~1Ω);

40A(1mΩ~500mΩ)

0.1uΩ,

±(0.2%+2d)

AC 220V±22V,50Hz±2Hz  Remark:Fuse 10A≤1200W,  Remark: Test current 10A

Data:255sets,

Printer

MEWOI-ACZ-50A-Winding-Resistance-Ohmmeter_80.jpg

MEWOI-AZC-50A

50A

2.5A(10mΩ~8Ω)

5A(1mΩ~4Ω)

10A(1mΩ~2Ω)

20A(1mΩ~1Ω)

50A(1mΩ~500mΩ)

0.1uΩ,

±(0.2%+2d)

AC 220V±22V,50Hz±2Hz  Remark:Fuse 10A≤1500W,  Remark: Test current 10A

Data:255sets,

Printer

MEWOI-JYG100A-Transformer-DC-Winding-Resistance-Tester_016.jpg

MEWOI-JYG100A

100A

10A(500μΩ~2Ω),

20A(200μΩ~1Ω);

40A(100μΩ~500mΩ);

100A(10μΩ~100mΩ)

0.1uΩ,

±(0.2%+2d)

AC 220V±22V,50Hz±2Hz  Remark:Fuse 10A

Printer



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