A method for fiber channel inspection in smart substations without power failure

Abstract

The invention relates to a method for performing optical fiber channel check without power outage on an intelligent substation. The method comprises the following steps: in a direct sampling loop, accessing a first optical fiber splitter to a current combining unit, separating two optical fibers to connect to a second optical fiber splitter through the flanges, and then accessing to an intelligent protecting device of the intelligent substation, disconnecting any optical fiber between the first optical fiber splitter and the second optical fiber splitter when preforming the optical fiber channel check, accessing two splices of the disconnected optical fiber into an optical channel check device; in a direct tripping loop, accessing the third optical fiber splitter to the intelligent terminal, separating two optical fibers to respectively connect to the fourth optical fiber splitter through the flanges, and then accessing to the an intelligent protecting device of the intelligent substation, disconnecting any optical fiber between the third optical fiber splitter and the fourth optical fiber splitter when preforming the optical fiber channel check, concurrently accessing two splices of the disconnected optical fiber into the optical channel check device. By use of the method disclosed by the invention, the power outage of the primary equipment is unnecessary when performing the optical fiber channel check.

Description

technical field [0001] The invention relates to a method for inspecting an optical fiber channel in an intelligent substation, in particular to a method for inspecting an optical fiber channel in an intelligent substation without power failure. Background technique [0002] With the construction of smart grid, the number of smart substations is increasing. Nowadays, the microcomputer protection circuits of smart substations with relatively mature technology mostly adopt the direct mining and direct jumping optical fiber network connection mode. That is, direct sampling and direct tripping. The meaning of direct sampling is that intelligent electronic devices perform digital sampling transmission of sampling values ​​in a point-to-point optical fiber direct connection without passing through an Ethernet switch. The meaning of direct tripping means that the intelligent electronic device does not pass through the Ethernet switch, but uses the point-to-point optical fiber direc...

AI Technical Summary

Problems solved by technology

However, its disadvantage is that once a complex failure occurs in the electronic equipment of the intelligent station, the detection instrument cannot be used to directly read the message data from the optical fiber network, and the detection instrument cannot be used to check the communication volume transmitted by the optical fiber network of the intelligent substation.

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