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- To troubleshoot a three-phase motor starter, you can follow these steps123:
- Examine the motor's electrical connections and terminals. Remove power to the motor and repair any damaged or loose connections.
- Verify the incoming power supply and voltage into the motor controller.
- Check the motor’s design characteristics and the starting and control equipment and control circuit.
- Remove motor voltage and disengage the motor from the machine that it is running.
- Reconnect motor voltage and see if the motor now runs. If it does, check the machine for serviceability.
- Check the pump and motor for free-hand rotation if it is an aboveground installation and accessible.
- Check for blown fuses when starting.
- Check if the load is too large or the transmission mechanism blocks.
- Check for open circuit or short circuit of the stator winding.
- Check for short circuit of the stator winding to grounding or wrong wiring of the stator winding.
Learn more:✕This summary was generated using AI based on multiple online sources. To view the original source information, use the "Learn more" links.Examine the motor's electrical connections and terminals. Remove power to the motor and repair any damaged or loose connections. Remove motor voltage and disengage the motor from the machine that it is running. Reconnect motor voltage and see if the motor now runs. If it does, check the machine for serviceability.homesteady.com/12150486/how-to-troubleshoot-a …Troubleshooting Three Phase Induction Motors
- The power source is not connected. ...
- The fuse is blown out when starting. ...
- The setting current of the over-current relay is too low. ...
www.ato.com/troubleshooting-three-phase-inductio…While troubleshooting a potential issue with a three-phase motor installation, three initial steps should be conducted in the following order before moving on to the motor itself:
waterwelljournal.com/troubleshooting-three-phase-… How to Troubleshoot 3 Phase AC Motors.
Take a step-by-step approach to analyze motor starting problems
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