Rapid verification device of backup automatic switching

Abstract

The invention discloses a rapid verification device of backup automatic switching. The device comprises a screen assembling toolset as well as a power circuit and three detection circuits arranged inthe screen assembling toolset, the power supply provides DC power for the three detection circuits, each detection circuit comprises a simulated circuit breaker, two switches and two indicating lamps,the two switches control the position of the simulated circuit breaker, the two indicating lamps display the present position of the simulated circuit breaker, and the analog breaker is connected toa backup automatic switching device. The verification device is simple in structure, low in manufacture cost and simple in operation, and can detection backup automatic switching rapidly, and comparedwith a present verification manner, preparation time is reduced, a wiring link for test is omitted, fewer verification steps are included, test time is shortened, and the working efficiency is improved.

Description

technical field [0001] The invention relates to the field of electric power, in particular to a quick calibration device for standby automatic switching. Background technique [0002] Standby self-injection is the abbreviation of the backup power automatic input device. In the substation, the use of standby automatic switching is an important technical measure to ensure the reliability of power supply. The wiring methods of the step-down substation mainly include inner bridge wiring and unit wiring, and the operation mode is generally two incoming lines running separately or one running and one standby. [0003] When the two incoming lines run separately: each incoming line has a section of busbar, and the two incoming lines serve as hidden backups for each other. At this time, if a section of the busbar loses power due to a fault, the standby automatic switching device will start, and the incoming line circuit breaker will be tripped. Bus tie switch, another incoming lin...

AI Technical Summary

Problems solved by technology

[0005] The current verification method is relatively cumbersome. It is necessary for workers to go to the site to prepare the self-injection device and withdraw it from active service, remove the standby self-injection jumper, and the secondary wiring of the incoming line and bus tie switch, and simulate the operating status of each circuit breaker by shorting the contacts. First simulate the loss of voltage, then measure the DC voltage of the pile head to the ground on the opening outlet pressure plate to confirm whether the standby automatic switching device has issued a trip command, then simulate that the circuit breaker is in the disconnected position by shorting the contacts, and finally measure the closing outlet pressure plate Check the DC voltage between the upper pile head and the ground to confirm whether the standby automatic switching device has indeed issued a closing command, so as to verify whether the standby automatic switching device operates correctly

But this only verifies the correctness of its action logic

And the verification operation steps are complicated

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