Maintaining method of relay protection control type device

Abstract

The invention provides a maintaining method of a relay protection control type device. The maintaining method comprises the steps that 1, inputting a maintenance pressing plate is conducted, the maintenance pressing plate or an opening-inserting and controlling word are arranged on the device, when the opening-inserting and controlling word is effective, the device is in a maintenance state, and the device reminds an operating maintenance worker that the device is in the maintenance state through a prompt signal; 2, automatic safety isolation of the device is conducted, a device application is connected with an external circuit through electric, and splitting of the device and the external circuit is achieved; 3, selecting an isolate object to conduct maintaining and debugging, the device provides a debugging interface, the device is connected with a tester through the debugging interface, a single test of the device is achieved, and verification is conducted on whether a software function and a hardware function of the device are complete and correct or not; 4, the maintenance and the debugging are finished, and the maintenance pressing plate is quit. The maintaining method of the relay protection control type device is easy to operate, and the maintenance of the device without cutting off the power is achieved.

Description

technical field [0001] The invention belongs to the technical field of power system automation, and relates to a maintenance method for relay control devices. Background technique [0002] The relay protection control device in the smart substation can be set through the inspection state, the inspection bit (test) in the quality (Quality) in the SV and GOOSE message, FALSE is the non-inspection state (no-test), and TRUE is the inspection state ( test). The device internally receives the data sent by the merging unit or the smart terminal, and judges whether the merging unit or the smart terminal is in the maintenance state based on this. Similarly, the maintenance status of the device can also be seen in the data sent to the smart terminal. [0003] Because the electrical secondary circuit of the relay protection control device is directly connected with the device terminals or panel cabinet terminals, the electrical connection must be disconnected during equipment mainten...

AI Technical Summary

Problems solved by technology

Due to the complexity of the relevant circuits, there are a large number of outlet pressure plates that need to be switched on and off. The safety measures are cumbersome and error-prone, or the disconnection circuit is omitted, or the restoration circuit is omitted. There are many hidden dangers and often cause human accidents.

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