For power workers, DC resistance tester is not a new equipment, which is often used by power workers and has a very wide range of applications, so what are the applications of DC resistance tester in the power industry? This article will give you a brief introduction.
Generally speaking, DC resistance tester is mainly used for the measurement of DC resistance of power transformer. Its significance is as follows:
Check the lead wire and welding quality of internal conductor winding;
2. Check whether all positions of the tap changer are in good contact.
Check whether the winding or lead wire is broken;
4. Check the correctness of the parallel branch and check whether there is one or several broken wires in the winding wound by several parallel wires;
5. Check whether there is short circuit between layers.
The main work of the DC resistance tester is to measure the DC resistance of the power transformer, as well as the DC resistance of other high-power power power equipment. The main characteristics of the equipment are also very obvious. The instrument has the advantages of intelligence, compact structure, novel layout and reasonable. In addition to the advanced four-terminal measurement method, it also uses two-way programmable comparative analysis, automatic zero-setting calibration, anti-tension arc and data analysis circuit, automatic output of measurement data, menu operation, man-machine dialogue, operation and reading for tens of minutes.
High accuracy: SCM resistance tester adopts advanced high-power high-precision programmable constant voltage and constant current technology to maintain the charging current of the inductive load at a relatively stable value, with stable antisense ability, strong anti-interference ability and further guarantee the accuracy of measurement.
The main application of the DC resistance tester is to test the DC resistance value of the power transformer. According to this value, the power workers can judge the performance of the power transformer, which is an important reference for the delivery, use and overhaul of the transformer.
