The DC resistance test of transformer windings (5A DC resistance tester) 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 loose materials, welding, connection parts, missing strands, and broken wires of transformer coils, as well as hidden dangers after operation.

The 5A DC resistance rapid tester (hereinafter referred to as the DC resistance tester) is an innovative product with a built-in large capacity lithium battery. The instrument and testing line are designed with a machine wire integration, and the product is compact in size and easy to carry. The product is not only suitable for measuring inductive samples such as transformers, transformers, and reactors, but also for measuring resistive samples such as copper bars, wires, and switch contacts. The instrument testing speed is fast and the accuracy is high.

The interface design of this DC resistance rapid tester adopts microcomputer control, with a large backlit Chinese character LCD screen display. It is easy to operate, has clear display, and friendly human-computer interaction interface. The measurement process and instrument working status prompt are clear and sufficient, without the need for operators to memorize too many procedures; The use of current source linear compensation technology ensures stable testing, high measurement accuracy, and fast speed, improving measurement efficiency and reducing the workload of operators. Technically, "four terminal" measurement is adopted to eliminate measurement errors caused by lead resistance and contact. It has overvoltage protection function and can prevent back electromotive force impact. The panel printer can quickly print measurement results (optional). Small size, light weight, and easy to carry. This DC resistance rapid tester is suitable for measuring and analyzing inductive low resistance resistors in various types of power transformers, transformer windings, etc.

Product nickname: DC Resistance Speed Tester, Transformer DC Resistance Tester, Transformer DC Resistance Speed Tester, Transformer DC Resistance Rapid Tester, Inductive Load DC Resistance Speed Tester, Inductive Load DC Resistance Rapid Tester, Inductive Load DC Resistance Tester, DC Resistance Rapid Tester.

Note:1. The appearance of the product is subject to the actual product. Technical parameters and models are subject to change without prior notice. If there is any act of theft or copying, legal responsibility will be pursued
2. To learn more about Huayi products, please enter the product center. Service Hotline:

1. Powered by lithium batteries or 220V AC power, it is adaptive and can continuously test the DC resistance of hundreds of transformers on a single charge. The testing process is simple and convenient;

2. Output six levels of current, maximum output 10A current, maximum output 25V voltage, and can automatically select current, convenient and fast;

3. Wide range and high accuracy, 500u Ω~50K Ω;

4. Equipped with resistance temperature conversion function;

5. It has multiple protection functions such as back electromotive force protection, wire breakage protection, power-off protection, overheating alarm, etc;

6. 4.3-inch industrial grade high brightness color LCD screen, displaying clearly and visibly even in strong sunlight;

7. Equipped with local storage and USB storage;