Piston air compressor pressure switch how to control?
At this time the air compressor system is still external gas supply, the system pressure is reduced, until the system pressure to PS off off value, the pressure switch action, control loop connected, contactor power, the main circuit connected to the motor and continue to work.
When the circuit is closed, the contactor coil in the control circuit is energized, the normally open contact of the contactor is closed and the motor is operated until the pressure of the air supply system reaches the set value of the pressure switch PS, The control circuit is disconnected and the contactor coil in the control circuit is disconnected from the contactor due to loss of power and the motor stops working. Energy - saving air compressor
Air compressor system air supply is greater than the actual gas consumption, this time the air compressor pressure switch and contactor together.
