The output current of transformer DC winding resistance tester is usually between 10mA-50A. During actual measurement, different test currents should be selected according to different subjects. When the test current is too large, the tested object will be heated, affecting the accuracy of measurement results, and the tested object will be damaged in serious cases. When the selected current is too small, it will affect the measurement accuracy.
The output voltage of transformer DC winding resistance tester includes 5V / 8V / 15 / V / 18V / 25V / 50V, etc. Usually, customers do not consider this parameter index when selecting the transformer DC winding resistance tester. In fact, the output voltage of the instrument determines the speed of measuring the transformer DC winding resistance value. With same output current, the instrument with higher output voltage has high output power and fast measurement speed. Generally, when the output voltage is twice higher, the measurement speed will be four times higher. When measuring a large transformer, due to the large energy consumption of the tested object during measurement, the output voltage with low output voltage will be much slower than that with high output voltage. At present, many low-end products in the market have an output voltage of less than 10V. In order to reduce the product cost, some manufacturers produce products with an output voltage of less than 5V. Therefore, when selecting the instrument, we should not only look at the output current, but also understand the output voltage of the instrument.
Kingrun DC winding resistance tester with stable output current and accurate output voltage, makes the measured data more accurate and reliable, and protects the safety of operators,test objects and prolongs the service life of the instrument efficiently as well.
Kingrun Instrument Co.,Ltd
Uniform Social Credit Code:911306056011795957
Address: Building2# torch high-tech park baoding city,China
Post code: 071000