High-voltage circuit breaker

• Main Authors: HAN GUOHUI, CHEN FUGUO, YANG RUI, LEI QIN, FAN NAIYUAN, XU JIAYUAN, QIAN KAI, DENG YUAN, HE BAOYING, HE DAWEI, HUI YONGFENG, LIU YU, YAN FEIYUE
• Format: Patent
• Language: Chinese; English
• Published: 29.12.2020
• Subjects: BASIC ELECTRIC ELEMENTS; ELECTRIC SWITCHES; ELECTRICITY; EMERGENCY PROTECTIVE DEVICES; RELAYS; SELECTORS

The invention relates to a high-voltage circuit breaker, and belongs to the technical field of intelligent high-voltage circuit breakers. The high-voltage circuit breaker comprises a moving contact arranged on a bus, a servo motor driving the moving contact to act, an inverter circuit connected with the servo motor in a power supply mode, and a motor driver driving the inverter circuit; the motordriver collects bus information in real time, outputs a corresponding driving signal according to a corresponding circuit breaker opening characteristic obtained according to a preset relation betweenthe bus information and the circuit breaker opening characteristic after receiving an opening signal, and controls the servo motor to drive the moving contact to execute an opening action according to the corresponding opening characteristic; the bus information comprises capacity, bus current or bus temperature, and the opening characteristic comprises a moving contact displacement-time relationor a moving contact speed-