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Method for evaluating and assessing state of relay protection equipment

A technology for equipment status and relay protection, applied in electrical digital data processing, special data processing applications, instruments, etc., can solve the problems of non-dynamics, limitations, rigidity, etc. The effect of reducing downtime

Inactive Publication Date: 2014-05-28
STATE GRID ANHUI ELECTRIC POWER +1
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  • Abstract
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AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a state evaluation and evaluation method of relay protection equipment to solve the limitations, rigidity, non-dynamic and other defects and deficiencies of the traditional relay protection equipment condition maintenance in substations

Method used

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Embodiment Construction

[0033] The method includes the following steps:

[0034] A state evaluation and evaluation method for relay protection equipment, the method includes the following steps:

[0035] (1) Establish a state evaluation model for relay protection equipment based on classical reliability theory and historical maintenance data, and make reasonable assumptions for the lack of state information of protection equipment in combination with relevant reference systems;

[0036] (2) According to the state evaluation model, check the operating environment of the relay protection device, the device's trouble-free time, the correct rate of device action, the insulation status of the device, the data sampling status, the communication status, the operation status of the longitudinal channel, and the differential current of the differential protection Evaluation and evaluation of the version and fixed value inspection, and the evaluation and evaluation results of the relay protection device;

[0...

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Abstract

The invention relates to a method for evaluating and assessing the state of relay protection equipment. The method includes building a relay protection equipment state assessment model according to classical reliability theories and historical maintenance data and combining the relay protection equipment state assessment model with related reference systems to give reasonable assumption for state information missing items of the protection equipment; evaluating and assessing running environments of relay protection devices and secondary circuits, fault-free time of operation boxes, insulation conditions of the circuits, anti-interference measures conditions, blocking conditions, device and circuit inspection conditions and the like according to the state assessment model and acquiring evaluating and assessing results; integrally evaluating the states of the relay protection devices and the states of the secondary circuits by the aid of the relay protection equipment state assessment model according to the evaluating and assessing results of the relay protection devices and the secondary circuits. The method has the advantages that the relay protection equipment maintenance management level and the equipment running reliability can be improved, the maintenance operation time and power grid maintenance shutdown time can be shortened, and the maintenance efficiency can be enhanced.

Description

technical field [0001] The invention relates to the technical field of condition maintenance of substation relay protection equipment, in particular to a state evaluation and evaluation method of relay protection equipment. Background technique [0002] With the continuous development of modern power grid scale and technology, the regular maintenance mode adopted by traditional relay protection equipment maintenance can no longer meet the needs of power grid development. In the process of regular maintenance of traditional relay protection equipment, because the maintenance period of the equipment is fixed, no matter what the comprehensive state of the equipment is, it must be compulsorily shut down for maintenance when it expires. In the traditional regular maintenance mode, multiple maintenance items must be completed within a limited time, making the equipment maintenance unfocused and targeted, which not only greatly reduces the maintenance efficiency, but also tends to ...

Claims

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Application Information

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IPC IPC(8): G06F19/00
Inventor 叶远波孙月琴黄太贵赵晓春谢民王栋程晓平王同文王海港徐殿洋刘祥
Owner STATE GRID ANHUI ELECTRIC POWER
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