Centralized control device for electric operating mechanism of electrified railway isolating switch

Abstract

The invention provides a centralized control device for an electric operating mechanism of a disconnecting switch of an electrified railway, wherein the device is characterized in that a circuit breaker shifting plate A and a circuit breaker shifting plate B of the device are both fixed on a main driving lower plate through interval studs, and move back and forth along the interval stud channels of the interval studs under the driving of a nut; a circuit breaker installation plate is fixed on a main driving bottom plate; a switch-off circuit breaker and a switch-on circuit breaker are arranged at one side of the circuit breaker installation plate; a circuit breaker clamping groove is arranged in the other side of the circuit breaker installation plate; the circuit breaker clamping groove, the switch-off circuit breaker and the switch-on circuit breaker are clamped on the circuit breaker installation plate through fastening bolts; the nut is arranged in the channel of the main driving lower plate; each of two ends of a guiding rod is provided with a spring which is locked by a bolt; the guiding rod freely moves through a reserved hole position of the nut. The centralized control device for the electric operating mechanism of the disconnecting switch of the electrified railway has the beneficial effects that electric and electronic component devices are eliminated, mechanical driving components are employed, and the positive and reverse rotations of a motor are directly controlled by a power supply, so that a system fault rate is effectively reduced, and the high-voltage line movement stability is beneficially guaranteed.

Description

Technical field [0001] The invention relates to a centralized control device for an electric operating mechanism of an electrified railway isolating switch, which is installed in the electric operating mechanism of a high-voltage isolating switch. The forward and reverse switching of a DC motor can be realized through two sets of circuit breakers, and the power supply is automatically cut off after the operating mechanism is in place. Features. Background technique [0002] At present, the electric operating mechanism of the isolation switch, as an actuator for operating the isolation switch, its safety and reliability have attracted much attention. Under normal circumstances, the electric operating mechanism uses contactors and relays to control the forward and reverse switching of the motor. The remote control opening and closing commands trigger the self-holding circuit of the electric operating mechanism, and the motor automatically completes the remaining actions. The remot...

AI Technical Summary

Problems solved by technology

The remote control command adopts the optical fiber transmission method. Due to the limitation of optical fiber transmission in low temperature environment, cable transmission is used in low temperature environment. Considering the serious interference of long-distance cable laying, it is easy to cause contactors and relays to be closed by mistake, which will lead to isolation. Faults such as misoperation and refusal of the switch have caused potential safety hazards in the power supply and distribution system of the railway catenary

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