The problem of motor reversal of stainless steel submersible pump
The motor reversal problem of stainless steel submersible pump is a common fault phenomenon. The causes and solutions are as follows:
1. Causes of motor reversal
Wiring error:
During installation or maintenance, if the wiring is improper, such as the three-phase power line is connected in reverse, the motor will reverse. This is one of the most common reasons.
In addition, if the capacitor of the submersible pump is wired incorrectly, the direction of motor rotation may also change.
Electrical control device failure:
Failure of certain components in the electrical control device, such as contactors, relays, etc., may cause the motor control signal to be disordered, thereby causing the motor to reverse.
Internal motor failure:
Damage or short circuit of the stator or rotor winding inside the motor may also cause abnormal motor running direction.
Power supply voltage problem:
Unstable power supply voltage or wrong phase sequence may also affect the direction of motor rotation.
2. Solution to motor reversal
Check and rewire:
First, check whether the motor wiring is correct. For three-phase motors, ensure that the phase sequence of the three-phase power line is correct.
If a wiring error is found, it should be corrected in time. When correcting the wiring, ensure that the power supply is cut off to avoid the risk of electric shock.
Check the electrical control device:
Check whether each component in the electrical control device is working properly. If there are damaged or faulty components, they should be replaced or repaired in time.
Especially for key components such as contactors and relays, regular inspection and maintenance should be carried out.
Check the power supply voltage:
Use a voltmeter to detect whether the power supply voltage is stable and confirm whether the phase sequence is correct.
If the power supply voltage is unstable or the phase sequence is wrong, timely measures should be taken to adjust or repair it.
Replace damaged parts inside the motor:
If there is damage or short circuit inside the motor, the corresponding parts should be replaced. This requires professional maintenance technology and equipment support.
Maintenance:
Regularly perform maintenance on the submersible pump, such as cleaning the pump body, replacing worn parts, etc., to ensure its normal operation.
During the maintenance process, special attention should be paid to the inspection and maintenance of the motor and electrical control device.
3. Precautions
Safe operation:
When performing any maintenance or inspection work, ensure that the power supply has been cut off and comply with relevant safety operating procedures.
Professional maintenance:
For maintenance work inside the motor or electrical control device, it is recommended to be carried out by professional technicians.
Regular inspection: Regularly inspect and test the rotation direction of the submersible pump to ensure its normal operation. If the motor reverses, it should be handled in time.
