Air compressor motor burned Case Analysis - inadequate cooling

Power compressors are generally larger return air cooling type. The lower the evaporation temperature, mass flow system often smaller. When the evaporation temperature is low (more than the manufacturer's instructions), the flow is not sufficient to cool the motor, the motor will operate at higher temperatures. Air-cooled compressor (usually no more than 10HP) dependence on a small back to the gas, but the compressor ambient temperature and cooling air flow have specific demands.

Substantial leakage of refrigerant mass flow will cause the system to reduce the cooling of the motor will also be affected. Some unattended cold storage, etc., often have to wait until the cooling effect is poor when you will find a lot of refrigerant leak.

Will appear after the motor overheating protection frequently, some users do not in-depth examination reason, even the thermal protection short circuit, it is a very bad thing. Before long, the motor will burn.

Compressor has safe operating range. Safe working conditions the main consideration is the compressor and motor load and cooling. Due to the different prices for different temperature zones of the compressor, past range use of domestic refrigeration compressor industry is relatively common. With the improvement in the growth of expertise and economic conditions, the situation has improved significantly.