Diagram of Three-Phase Low-Voltage Induction Motor Control Circuit

Author: Huang Beigang
Publisher:
Publish Date: 2007-01-01
Features: In various industries, the number of young workers engaged in electrical work is rapidly increasing. Upon entering different factories and enterprises, they encounter a wide range of electrical equipment. However, for various mechanical equipment, the control center that drives the machinery is the motor. The control circuits of motors driving general machinery are fundamentally similar. The integration of the production process control of mechanical equipment with the electrical equipment circuits forms simple or complex control circuits, which are universal. Based on 40 years of practical experience in electrical installation, maintenance, operation, and upkeep, the author has systematically organized and redrawn the control circuit diagrams of low-voltage three-phase asynchronous motors, using the new graphical and textual symbols. A Visual Guide to Three-Phase Low-Voltage Asynchronous Motor Control Circuits briefly introduces the working principles, fault phenomena, causes, and troubleshooting methods of common control circuits for some motors.