The DC resistance test of transformer windings is an indispensable test item for transformers after handover, overhaul, and change of tap changer. Under normal circumstances, measuring the DC resistance of transformer windings and high-power inductive equipment using traditional methods is a time-c......
Read MoreThe ratio of the output signal power of a transformer tester to the input processing power during additional task power is called the power of a transformer parameter tester. The transformer tester may not cause any loss, but in practice, this type of transformer tester is not available. The magnet......
Read MoreIn fact, the accuracy of transformer testers is not an important indicator of the instrument. In the transformer calibration regulations, it is required that the testing error caused by the entire circuit should not exceed 20% of the level of the tested transformer, and the presented data must be t......
Read MoreThe magnetic flux of the transformer tester's iron core is related to the applied voltage. Transformer testers should be kept away from strong electric fields, magnetic fields, and high-frequency equipment. The smaller the interference of the power supply, the better. It is advisable to choose ligh......
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