The DC resistance of transformers is a necessary test item for semi-finished and finished products in transformer manufacturing, factory testing, installation, handover testing, and preventive testing by the power department. It can effectively detect manufacturing defects such as material selection, welding, loose connection parts, missing strands, and broken wires of transformer coils, as well as hidden dangers after operation. In order to meet the needs of rapid measurement of transformer DC resistance, our company has developed aThree circuit DC resistance tester.ZZS-10A Three Circuit DC Resistance TesterIt is a new generation rapid testing instrument that integrates magnetic assistance testing, three-phase testing (Yn, Y, △), and demagnetization functions. It is an ideal device for measuring the DC resistance of large power transformers. The screen adopts a large high-resolution LCD display, which is convenient for on-site use and has a Chinese menu prompt function. The operation is simple and intuitive, and all direct resistance testing items can be completed in one wiring. The testing speed is fast, the accuracy is high, and the range is wide.

Product nickname: Three channel transformer DC resistance tester, DC resistance speed tester, transformer DC resistance tester, transformer winding DC resistance tester, transformer DC resistance speed tester, transformer DC resistance fast tester, inductive load DC resistance speed tester, inductive load DC resistance fast tester, inductive load DC resistance tester, three circuit transformer DC resistance tester, three circuit transformer tester, three channel DC resistance tester.

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1. For the testing of windings with star connections and neutral point leads, the instrument can adopt a three-phase simultaneous measurement method to test the resistance of phases A0, B0, and C0, saving testing time. And first test the data of phase A0, and then test the three-phase simultaneously, which solves the problem of the inability to test the neutral point lead out resistance when testing the three-phase simultaneously, making the test data closer to the single-phase test value;

2. For the testing of Y-shaped and △ - shaped windings, the instrument can perform three-phase automatic testing and convert the three-phase unbalance rate;

3. The instrument has the functions of assisting magnetic testing and demagnetization, meeting various needs of on-site experiments;

4. The instrument has multiple protection functions such as back electromotive force protection, wire breakage protection, and power-off protection;

5. The instrument has a wide measurement range, up to 200 Ω, and high accuracy;

6. Clock and date display without power failure; The data storage methods are divided into local storage and USB storage, among which local storage can store 200 pieces of test data; The USB flash drive stores data in Word format, which can be directly edited and printed on a computer;

7. Thermal printer printing function, fast and silent;

8. Small size, light weight, easy to carry and use;