What are the causes and troubleshooting methods for CT4 motor explosions?
2022-12-26 11:40
What are the causes and troubleshooting methods for CT4 motor explosions?
The CT4 motor is a very dangerous type of electrical equipment. Once rust spots appear on the explosion-proof surface, causing poor contact at the contact surface, harmful media will take the opportunity to enter the machine, corroding internal parts and the winding insulation layer. Once the explosion-proof motor loses its explosion-proof function, the consequences are unimaginable. Therefore, it is of great significance to promptly discover, repair, and eliminate explosion-proof motor failures. So, what are the causes and troubleshooting methods for CT4 motor explosions?
1. Improper maintenance and installation of explosion-proof CT4 motors lead to serious corrosion of the explosion-proof surface.
Therefore, correct installation techniques should be used, and careful inspection and maintenance should be carried out according to the maintenance system.
2. The explosion-proof surface of the explosion-proof CT4 motor is severely damaged mechanically.
This is caused by improper installation, transportation, or hoisting. If it is difficult to repair, replace it with the same type of motor.
3. Explosion-proof C T4 motor The sealing ring is damaged and has no sealing effect.
This is caused by improper tightening of the screws. If the screws are over-tightened, the sealing ring will break; otherwise, the sealing ring will rupture. If the material of the sealing ring is not good, it will cause premature damage. In this case, please replace it with qualified sealing material.
4. The explosion-proof surface of the explosion-proof CT4 motor is severely deformed.
This is caused by insufficient machining accuracy of parts, improper material processing, and improper operation. According to the pattern accuracy and roughness during the processing process, use uniform force during installation and processing. When the explosion-proof surface is severely deformed, the motor maintenance difficulty increases. If necessary, replace the motor with a new one. Slight deformation is caused by improper installation and can be reassembled.
5. Explosion-proof CT4 motor Poor daily maintenance.
There are several aspects:
(1) Too much dust cannot be cleaned in time; screws are loose and not checked and tightened in time;
(2) The insulation layer is damp, and the insulation resistance is reduced;
(3) The explosion-proof surface is corroded, etc.
Therefore, inspection and maintenance work should be carried out carefully according to the maintenance procedures.
6. The explosion-proof CT4 motor overheats.
Under normal circumstances, the causes and handling methods of motor overheating are: ventilation system failure; fan damage or incorrect model. The solution is to regularly check and maintain, and deal with any problems promptly. Motor bearing failure will cause the motor to sweep the core, which is equivalent to motor overload. Qualified bearings should be replaced in time.
What does explosion-proof level 4 mean?
1. Explosion-proof level 4 means that the explosion-proof motor of this explosion-proof level mainly operates in a B-II environment, and its temperature grade is T4;
2. Class II, Zone 2 environments are used for flammable and explosive environments except for underground coal mines. The main flammable and explosive gases in the use environment include propyne, dimethyl ether, town gas, butadiene, ethylene oxide, ethylene, furan, dimethyl ether, hydrogen sulfide, dibutyl ether, ethyl ether, ethyl methyl ether, tetrafluoroethylene, etc.
3. The CT4 temperature level indicates that when the current motor is running, the high temperature of the casing should be within 135 degrees.
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