Control method and device of circuit breaker energy storage motor

Abstract

The invention relates to a control method and device for an energy storage motor of a circuit breaker, and belongs to the technical field of direct-current motors. The control method of the circuit breaker energy storage motor comprises the following steps that before the energy storage motor is started, the power-on time of a switching power supply is detected, and if the power-on time of the switching power supply is larger than or equal to a time threshold value, the energy storage motor is controlled to be started. After the switching power supply is powered on and before the energy storage motor is started, a certain time is reserved for charging the capacitor, so that the situation that the energy storage motor cannot be driven to operate due to overload protection of the switching power supply when the energy storage motor is at the maximum load can be avoided, and the starting reliability of the energy storage motor is improved.

Description

technical field [0001] The invention relates to a control method and device for a circuit breaker energy storage motor, belonging to the technical field of direct current motors. Background technique [0002] With the application of electric energy more and more widely, circuit breakers play an indispensable role in the distribution network at present, and its electric switching characteristics make distribution automation possible. The spring-operated circuit breaker relies on the motor operating mechanism to store energy on the spring, so as to perform continuous opening and closing operations. Once the energy storage cannot be completed, the continuity of the electric opening and closing of the circuit breaker will be destroyed, which will affect the automation of the distribution network. The traditional operating mechanism is only designed according to a predetermined opening and closing mode, and the action process is uncontrollable. Therefore, someone proposes a cont...

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Problems solved by technology

[0005] The purpose of this application is to provide a control method for a circuit breaker energy storage motor to solve the problem that the energy storage motor cannot be started when the power is turned on due to the excessive load of the energy storage motor; at the same time, it also provides a circuit breaker energy storage motor control method The control device is used to solve the problem that the energy storage motor cannot be started when the power is turned on due to the excessive load of the energy storage motor

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