DC resistance tester for different transformers is the choice of test current
Transformer DC resistance tester features the following five points:1. transformer DC resistance tester with overcurrent protection, perfect over-voltage, misoperation, discharge and other functions, as proved by the destructive test several times, under various conditions: during the test, not afraid not afraid of sudden power clamp;2. transformer DC resistance tester adopts the new switching power supply technology, the output current stability is good, the power is big;3., the use of advanced signal measurement circuit, low noise, anti-interference, test data is true and reliable;4., the output current can provide multiple stalls, so that a wider range of measurements;5. transformer DC resistance tester, large screen Chinese character LCD display, various functional prompts, flexible and convenient operation. The utility model has the advantages of compact structure, small size, light weight and better suitability for field use.
Transformer DC resistance tester with self-test, signal measurement, data processing, fast discharge and other functions, is composed of four parts, respectively is the high power switching power supply circuit, the precision of measurement of small signal circuit, protection circuit, MCU control circuit, in the process of testing is an indispensable instrument.
Transformer DC resistance test, select the general transformer rated operating current of 10% measurements. Too much current will cause the transformer to rise in temperature, resulting in inaccurate resistance tests, and too little current to test accuracy.
