START DEVICE AND CONTROL SUPPLY REVERSE MOTOR single-phase asynchronous when powered by three-phase AC

摘要

starter and supply voltage regulation reversing single phase induction motor, powered by three-phase AC is intended for use in electric alternating current for starting single phase of three-phase asynchronous motors, that do not require speed control. The first terminal of the first stator winding is connected with a semiconductor switch. The first terminal of the second stator winding phase A is connected to the mains, and a second terminal of the second stator winding connected to the mains zero. The second terminal of the first coil is connected to the mains zero. In this semiconductor switch connecting the first stator winding in phase with the mains supply for the motor run forward and connecting the first stator coil with the phase C power line for starting the engine back, it is based on two triacs. Ensure high reliability and efficiency, as well as the small size of the device. 7 FIG.