A secondary wiring circuit of an isolation cabinet

Abstract

The invention relates to an isolation cabinet secondary wiring circuit, which comprises a control power supply, a first miniature circuit breaker, a handcart chassis electromagnetic lock, an analog display operating power supply and a back door electromagnetic lock, wherein the control power supply is connected in series with a circuit breaker and the handcart chassis electromagnetic lock by meansof the first miniature circuit breaker, an output end of the handcart chassis electromagnetic lock is connected with the first miniature circuit breaker, an access-in end of the circuit breaker and an access-out end of the handcart chassis electromagnetic lock are connected in parallel with a first switch and the analog display operating power supply; the first switch is connected in parallel with a second switch connected the control power supply, the first switch is connected in series with the first miniature circuit breaker by means of an operating position indicating lamp, the second switch is connected in series with the first miniature circuit breaker by means of a test position indicating lamp, an output end of the analog display operating power supply is provided with the back door electromagnetic lock connected with the control power supply, the back door electromagnetic lock is fixedly installed in an instrument room, and the instrument room is internally provided with a lighting circuit system. The isolation cabinet secondary wiring circuit has the beneficial effects of being high in applicability, being safe and stable, and reducing the failure rate of equipment.

Description

technical field [0001] The invention relates to the technical field of electrical equipment, in particular to a secondary wiring circuit of an isolation cabinet. Background technique [0002] In the high-voltage power distribution wiring, there should be a clear disconnection point between the power switch and the power supply (line), which can ensure that the power supply can be seen to be disconnected during maintenance to ensure personal safety. Before the switch, an isolating cabinet is often set up, and an isolating switch or isolating switch trolley is set in it, and the isolating switch is turned on during power outage maintenance to ensure that the high-voltage cabinet is disconnected from the power supply. [0003] When there is a vacuum circuit breaker and busbar in the high-voltage cabinet above the cabinet, the outlet line of the vacuum circuit breaker in the bus-connector must be at the bottom, and the rear section of the busbar is also at the top, so "from the ...

AI Technical Summary

Problems solved by technology

[0004] The inside of the existing isolation cabinet cannot display the normal operation of the circuit, nor can it detect the circuit through the test. The temperature adjustment requirements are relatively high, and it needs to reach a certain balance range to ensure the normal operation of electrical components. There is usually no lighting facility in the instrument room, which cannot facilitate personnel maintenance and equipment use in dark conditions, which reduces safety performance.

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