Method for overhauling fault of overhead transmission line built on basis of fault mode and fault tree
2013
The invention provides a method for overhauling the fault of an overhead transmission line built on the basis of a fault mode and a fault tree. The method comprises the following steps of: (1) knowing the system structure of the overhead transmission line, and formulating a fault mode analysis table of the overhead transmission line; (2) building an overhead transmission line fault tree analysis model according to the fault mode analysis table; (3) quickly finding out the fault happening mode and the fault happening reason according to the overhead transmission line fault tree analysis model built in the step (2) when the fault of the overhead transmission line is observed by the line patrol of professional persons and observed by an on-line monitoring device; (4) finding out the fault mode analysis table built in the step (1) according to an output result of the fault mode analyzed and obtained according to the overhead transmission line fault tree analysis model, and formulating a fault overhaul strategy; and (5) formulating an overhead transmission line fault overhaul form according to the fault overhaul strategy. After the method provided by the invention is used, the overhead transmission line fault mode analysis table and the fault tree analysis model are built, so that the specific parts where the fault happens can be quickly positioned when equipment breaks down, the fault reason can be found out, and the overhaul strategy can be formulated comprehensively and quickly.
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