Solution to short circuit of electronic universal test machine

Jinan Hengsi Shanda Instruments introduces someElectronic universal testing machineSolution to short circuit

Use the elimination method: first check that the motor armature circuit is normal and eliminate the short circuit. Then check the energy consumption resistance. After measurement, the resistance has a resistance value and the measured value is consistent with the mark, so the possibility of a short circuit of the resistance is eliminated.

When the contactor was checked, it was found that a set of normally closed contacts had been arc-welded. The contactor coil was energized, and the normally closed contact could not be disconnected, and the real fault point was found.

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