Mining drainage dual-power-supply dual-loop electromagnetic starter protection control system

• Main Authors: DU WULONG, ZHAO XULIANG, ZHAO XIN, FAN SUFANG, FAN SUFENG
• Format: Patent
• Language: Chinese; English
• Published: 25.07.2023
• Subjects: CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORSOR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER; ELECTRICITY; EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS; GENERATION

The utility model provides a protection control system for a mining drainage double-power-supply double-loop electromagnetic starter, and belongs to the technical field of protection control for mining drainage double-power-supply double-loop electromagnetic starters. The technical problem to be solved is to provide the improvement of the hardware structure of the protection control system for the mining drainage double-power-supply double-loop electromagnetic starter. The technical scheme for solving the technical problem is as follows: a wire inlet end of an isolation phase-change switch is connected with a wire inlet wiring terminal and then is connected with a 1140V or 660V three-phase power supply with an ungrounded central point; the wire outlet end of the isolation phase-change switch is connected with the wire inlet end of the contactor. The wire outlet end of the contactor is connected with the control end of the three-phase asynchronous motor after being connected with the wire outlet wiring termina