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  1. neal5105

    Motor reversing

    Thanks again for all the input. After spending some time on the plant, I suspect the following: The contactor that starts the motor is “failing.” When the contactor closes, one of the phases makes contact milliseconds after the other two contacts. This causes the single phasing of the motor. I...
  2. neal5105

    Motor reversing

    Thanks for all the comments, After some thought I have done the following; Walked the cable to check for other starting divises found none. Meggered the motor all tested fine Cheched power supply with analizer. found plant power factor to be 0.6 Can this have a effect on the motor?? The...
  3. neal5105

    Motor reversing

    I thought about that until it happend wilst i was watching the motor by chance yesterday and saw it with my own eyes. this is why i decided to join and post
  4. neal5105

    Motor reversing

    Good day all, I have a 2.2KW motor installed in a milling plant.The motor is 400v 3 phase 4 pole. The motor starts and stops by means of a level switch that contols a contactor. The switching is frequent ie evey 2 seconds. Now heres the problem. The motor will run fine for a few day and the...
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