Device and method for reducing the current consumption during the starting process of a single-phase a.c. asynchronous motor

摘要

The invention relates to a device (1) for reducing the current consumption during the starting process of a single-phase a.c. asynchronous motor (M). Said device consists of a thermistor which can be mounted in series with the main winding of the motor. Advantageously, a starting capacitor (8) can be mounted in series with an auxiliary winding (3). Current and voltage peaks of the starting capacitor (8) can be advantageously reduced by a posistor (9). The thermistor (5) is mounted in series with the main winding at the beginning of the starting process, and can be bridged by a switch once the starting process is completed.