Explosion-proof motor: How to use explosion-proof motor? Common faults and troubleshooting methods

Explosion-proof motors are very dangerous special electrical equipment. Once rust and rust spots are generated on the explosion-proof surface, so that the contact surface is not in good contact, harmful media will take the opportunity to enter the machine and corrode the internal parts and winding insulation. Once the explosion-proof motor loses its explosion-proof function, the consequences are unimaginable. Therefore, it is of great significance to discover, repair and eliminate the explosion-proof faults of the motor in time.

The causes and troubleshooting methods of explosion-proof motor explosion are roughly as follows:

(1) Due to the improper maintenance and installation of the explosion-proof motor, the explosion-proof surface is seriously corroded.

Therefore, it is necessary to adopt the correct installation process and carry out careful inspection and maintenance according to the maintenance system.

(2) The explosion-proof surface of the explosion-proof motor has suffered serious mechanical damage.

This is caused by improper installation or transportation and hoisting. If it is difficult to repair, the same type of motor must be replaced.

(3) The sealing ring of the explosion-proof motor is damaged, and there is no sealing effect.

This is caused by improper tightening of the screws. If the tightening screw is too tight and the force is too high, it will cause the seal to break; Failure to do so will result in a breakage of the seal. If the material of the seal is not good, it can lead to premature damage. In this case, replace it with a qualified sealing material.

(4) The explosion-proof surface of the explosion-proof motor is seriously deformed.

This is caused by insufficient machining accuracy of parts, improper material handling and improper operation. Depending on the pattern accuracy and roughness during machining, uniform force must be used during installation and machining. When explosion-proof surfaces are badly deformed, servicing the motor is more difficult. If necessary, replace the motor with a new one. Minor deformation is caused by improper installation and can be reassembled.

(5) The daily maintenance of the explosion-proof motor is not good.

The performance has the following aspects: too much dust, can not be cleaned in time; The screws are loose and not checked and tightened in time;

The insulation layer is wet, and the insulation resistance is reduced;

Explosion-proof surfaces are corroded, etc. Therefore, inspection and repair work must be carried out carefully in accordance with maintenance regulations.

(6) The explosion-proof motor is overheated.

The causes and treatment methods that usually cause the motor to overheat are as follows: ventilation system failure; The fan is damaged or the model is wrong. The solution is regular inspection and maintenance, and existing problems should be dealt with in a timely manner. A faulty motor bearing can cause the motor core to sweep, which is equivalent to an overload of the motor. Qualified bearings should be replaced in time.