Current and short-term reliability assessment method of high-voltage transformer

A high-voltage transformer and reliability technology, applied in the direction of instruments, data processing applications, information technology support systems, etc., can solve the problems of human factors interfering with too many equipment maintenance tasks and personnel
CN103218752AInactive Publication Date: 2013-07-24YUN NAN ELECTRIC TEST & RES INST GRP CO LTD ELECTRIC INST +1
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
YUN NAN ELECTRIC TEST & RES INST GRP CO LTD ELECTRIC INST
Publication Date
2013-07-24
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention provides a current and short-term reliability assessment method of a high-voltage transformer. According to the method, precise and quantized assessment is carried out on the current and short-term reliability of the high-voltage transformer by means of a fault tree and a fault mode assessment model through data obtained through all detection means of a current transformer, wherein the data include routine tour, special tour and preventive test data, diagnosis test data, foundation standing book information of equipment, past-year equipment defect and fault records and other data. After assessment, a mode that each maintainable component of the transformer can possibly have a fault and the fault generation probability can be obtained, and maintenance measures to reduce or prevent the fault mode can be formulated under guidance according to the correspondent relationship between the fault mode and inspection methods. A development trend of the short-term reliability can be predicted through an aging model of the equipment. The method can assess reliability of the high-voltage transformer, and has the advantages of being concise, easy to understand, precise, visual, quantized and the like.
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Description

technical field

[0001] The invention belongs to the category of state evaluation of electrical equipment, and is suitable for current and short-term state evaluation of equipment of 500kV, 220kV and 110kV high-voltage transformers. Background technique

[0002] Modern grid electrical equipment has greater complexity and stronger system, so better ideas are needed to realize the modern management of electrical equipment. Especially for domestic power grid enterprises, the power grid is developing rapidly, and it is necessary to pursue an efficient equipment management model to ensure the safety of power grid production, and to solve the increasingly prominent contradictions between excessive human intervention and equipment maintenance tasks and personnel in the equipment management process . Therefore, it is necessary to establish a repair and maintenance strategy for electrical equipment based on equipment status and reliability, clarify the weak points of electrical equip...

Claims

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