What is the purpose of completing the purging of the motor in a reciprocating air compressor?
Thread Content
There is a condition that must be met for the motor purge to be completed before starting a reciprocating compressor. What is the purpose of completing this motor purge?
When a motor is in operation, it cannot convert 100% of the electrical energy into kinetic energy; a portion of it is converted into heat energy. This heat energy needs to be removed through air cooling, by releasing it into the atmosphere. Axial flow fan impellers are installed on the rotor of the motor, and as the motor rotates, these impellers function like fans to carry away the heat energy, allowing the motor to operate at a safe temperature. Moreover, fiber dust and similar substances can easily accumulate in the gaps of the motor windings as well as in their passages, causing blockages in these areas. Thereby reducing the cooling effect. Therefore, it is necessary to regularly clean and maintain the motor winding cavities based on the environmental conditions and usage patterns, in order to improve the cooling effect. For reference.
Increased safety motors require purging before startup; therefore, both increased safety motors and positive pressure ventilation motors must be purged.