Y-connection three-phase motor low speed running and braking in reverse circuit

Published:2011/7/14 20:29:00 Author:Lucas | Keyword: KMF, three-phase motor | From:SeekIC

Just as shown in the circuit, high-power semiconductor diode is used for lowering pressure to achieve the low-speed operation of the electric motor. When STF is pressed, AC contactor KMF pulls with the gain of electricity and the motor M runs forward. When STP is pressed, the motor M would power off. If STR is pressed at this time, diode VD1 ~ VD3 are inducted by the reverse contactors KMR. And the power is rectified. The DC current is input to three-phase stator winding. When the M does not turn, press STP for braking the M. If the motor is expected to run in alt= Y-connection three-phase motor low speed running and braking in reverse.



Reprinted Url Of This Article:
http://www.seekic.com/circuit_diagram/Control_Circuit/Relay_Control/Y_connection_three_phase_motor_low_speed_running_and_braking_in_reverse_circuit.html

Print this Page | Comments | Reading(3)