Relative short circuit of the motor
Thread Content
The Fuji inverter is connected to a 18.5 kW motor, which is connected in a delta configuration; its casing is grounded. A short circuit occurred between the motor and ground, resulting in the destruction of multiple 220V meters in the same system. Solve
1. Check the power supply wiring once； 2. Test the motor ； 3. Check the frequency converter.
Why not use motor microcomputer protectors?
How can the casing be connected to ground? The enclosure should be grounded, and the grounding of the neutral protection device should not activate.