Thereasonfortheoverheatingofthemachinemotor.

Metal shredding machine equipment in use after a period of time, will appear the phenomenon of electric heating, electric motor after heating, can make the insulation of the motor winding temperature rise, and insulation of high temperature reaction is very severe, can accelerate ageing, reduce use of stature. Temperature rise is too high to make insulation carbide, bereft of insulation, winding of the motor will appear a short-circuit and make a metal shredding machine problem, so how do you know the motor overheating, how to protection? Xin yue machinery to introduce to you:

 

One, the power supply voltage is high, the excitation current increases, the motor overheats. According to the national regulation, the motor power supply voltage should be changed not exceeding the rated value of plus or minus 5%, and the output power of the motor can be determined by the rating. The power supply voltage of the motor shall not be allowed to exceed 10% of the rated value, and the difference between the three phase power supply voltage should not exceed 5% of the rated value.

 

2. The air gap between the motor and rotor is very small, which causes the collision between the rotor and the rotor. The shorter treatment is to cover the end cover.

 

3. Abnormal vibration or noise of the motor causes the motor to heat up. The details should be cleared. The oscillation not only produces noise, but also the rated load.

 

4. The bearing operation is abnormal, which must make the motor heating. Whether the bearing operation is normal can be judged by temperature experience. Use hand or thermometer to check the bearing end to determine whether the temperature is within the normal range.

 

5. Winding short circuit, interturn short circuit, short circuit and winding break. It is necessary to stop the process immediately after this situation.

 

6. The leakage of material into the motor will reduce the insulation of the motor, thus allowing the motor to be allowed to rise and fall. It should be shut down to eliminate foreign matter.

 

7. The motor lacks phase operation. Present phase in order to prevent the motor operation, in addition to accurate selection and low voltage electrical equipment and protection equipment, still should strictly implement relevant specification, laying feeders, strengthen together regularly check and protection.