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Three-phase DC resistance tester

type:ZC-205E-10A
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  • Product Introduction

ZC-205E transformer DC resistance fast tester is our company's latest professional transformer DC resistance test equipment, which is mainly used for the DC resistance test of transformers in power systems. The instrument adopts large screen LCD display, full Chinese menu, friendly man-machine interface, complete functions, and convenient operation. It is an ideal instrument for the DC resistance test of transformers in power systems and transformer manufacturers.

  • Product Parameters
Environment condition
Temperature- 10℃ ~50℃
Relative humidity<85% (25℃)
Altitude<2500m
Power supply85~264VAC/120~373VDC
External interferenceno extra strong vibration, no extra strong electromagnetic field
DC resistance test range and accuracy
Output current 10A, 5A, 1A, 200mA, 20mA, 2mA
Test scope

10A: 0~250mΩ         5A: 50mΩ~1Ω             1A: 0.2Ω~20Ω      

200mA 1Ω~100Ω       20mA:10Ω~1KΩ        2mA: 100~30KΩ

Minimum resolution 0.1 μ Ω
Measurement accuracy± (0.2% reading+2 words)
Insulation strength
 The insulation resistance of the voltage and current input terminals to the enclosure is ≥ 100M Ω.
The power frequency between the input end of the working power supply and the shell is 2KV (effective value), and the test lasts for 1 minute


  • Product Features

1、High-efficiency and fast DC power supply is adopted, and the opening voltage can reach 24V to quickly charge and discharge the transformer winding.

2、 High test accuracy. The instrument uses 16-bit high-precision AD converter and CPU uses DSP (digital signal processing) chip, effectively ensuring the measurement accuracy and anti-interference ability.

3、The equipment completes three-phase wiring at one time, and each test can display and save the time of rewinding. Print all the test data of the three-phase winding of the transformer, automatically calculate the three-phase unbalance rate, and also display and print the resistance value converted to the rated temperature.

4、 It has the functions of perfect overcurrent protection and wiring inspection.

5、320x240 large screen, high brightness LCD display, full Chinese menu and operation prompt realize friendly human-computer dialogue, with built-in real-time electronic clock, which automatically records the date and time of the test, which is conducive to the storage and management of the test results.

6、The data has the function of power-off storage and browsing, and can store 1000 groups of experimental results.

7、 It has audio and LCD display discharge alarm, and discharge indicators are clear to reduce misoperation.

8、It has RS232 communication interface to support online operation.


  • Product Picture

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