High-voltage circuit breaker and locking control system thereof

• Main Authors: WANG QINGLI, DU GANG, LI XIAOYAN, ZHANG YANFEI, WANG JINGLI, ZHANG CHANG, PANG YONGPENG, HAN XIANGFENG, WANG ZHIWEI
• Format: Patent
• Language: Chinese; English
• Published: 08.02.2022
• Subjects: BASIC ELECTRIC ELEMENTS; ELECTRIC SWITCHES; ELECTRICITY; EMERGENCY PROTECTIVE DEVICES; MEASURING; MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES; PHYSICS; RELAYS; SELECTORS; TESTING

The invention relates to a high-voltage circuit breaker and a locking control system thereof. The high-voltage circuit breaker comprises a detection relay, a blocking relay and a controller; a coil of the detection relay is used for being connected in series in at least one phase of circuit breaker closing loop; the controller is connected with an auxiliary contact of the detection relay in a sampling mode and used for collecting the number of times of generation of circuit breaker closing signals; the controller also controls and is connected with the blocking relay; a normally closed contact of the blocking relay is connected in series in the circuit breaker closing loop; and when the controller detects that the closing signals of the circuit breaker are generated for a set number of times within a set time period, the controller controls the normally closed contact of the blocking relay to be switched off, and the circuit breaker is latched. The locking control system can set corresponding continuous opera