Explosion-proof motor Price: The motor refers to an electromagnetic device that converts transmits electrical energy according to the law of electromagnetic induction. The motor is the equipment that we often use, but the failure that the motor may often face in use is burned out, which is uncommon for every motor. Many people react that the motor can be protected by adding a frequency converter in order to prevent burning out, so does this method work? Today we will analyze it.
Frequency converter is a power control equipment that uses frequency conversion technology microelectronics technology to control AC motor by changing the working power frequency of the motor. Use the inverter, the motor really won't burn? Compared with the power frequency power supply, the motor is easier to burn with the inverter, the easy burning of the motor makes the inverter module easy to burn. The sensitive overcurrent protection circuit of the inverter plays no role in this, which is a major external reason for the damage of the inverter module.
Explosion-proof motor price: The motor that has been running for many years, due to the operating temperature rise of the motor moisture other reasons, the insulation degree of the winding has been greatly reduced, there may be obvious insulation defects, it is at the critical point of voltage breakdown. In the case of power frequency power supply, the input of the motor winding is a three-phase 50Hz sine wave voltage, the induced voltage generated by the winding is also low, the surge component in the line is small, the reduction of the motor insulation degree may only bring an insignificant leakage current, but the winding turns phases have yet produced voltage breakdown phenomenon, the motor is still in normal operation.
Therefore, the above analysis, we know that the frequency converter can do nothing about the sudden voltage breakdown phenomenon of the motor winding, it can play an effective protective role.