報告書番号

H09010

タイトル（和文）

電力流通設備の維持・更新計画策定支援プログラムの開発（Ⅳ）－架空送電設備への対応と設備寿命診断効果の検討－

タイトル（英文）

Study of decision support programs for maintenance strategy of electric power equipment Part IV -Development for Over Head Transmission Line and Evaluation of Life Time Diagnosis Effect in Maintenance Strategy-

概要 （図表や脚注は「報告書全文」に掲載しております）

電気事業や、電気設備を多数抱えるプラントメーカ等の一般需要家において、経年設備の合理的な保守管理戦略策定は重要課題となっており、いわゆるアセットマネジメント技術に期待が集まっている。当所ではこれまで変圧器、GCB、GISを対象とする支援プログラムの開発を行ってきており、今回架空送電設備対応のプログラムを開発し、ラインナップ拡充を進めた。また、保守管理戦略やアセットマネジメント支援を考えた場合に重要となる設備診断について、その効果を簡易に評価するモデルを提案し、診断精度（判定のばらつき）と対象設備寿命のばらつきの関係で決まる診断効果を示した。また、開発してきた個別機器対応のサポートプログラムについて、現実的な対応として、診断によって設備状態を3段階に入力し、それによって故障率や保守費用増加傾向を補正（補正度合いはユーザが入力）する形で、診断情報を加味できるよう改良を加えた。

概要 （英文）

Both in electric power industry and demand side industry, the development of decision support tools for creating a maintenance strategy for electric power equipment based on asset management technique has become very intensive in recent years to reduce maintenance costs, and to make future expense in same level. Authors have developed such tools (GUI programs) for transformers, GCB (Gas insulated Circuit Breaker) and GIS (Gas Insulated Switchgear) by considering maintenance staff use. From the view point of asset management, there are several characteristics among several kinds of electric power equipments, so such support programs should be developed and adjusted for each characteristic of equipments. In this article, one new program based on the evaluation of the average annual maintenance cost is presented for over head power transmission line. It can take into account maintenance cost of equipments and renewal of parts, such as over head cables and other attached equipments.
In asset management of electric power equipments and in rational maintenance strategy, evaluation and effective utilization of diagnosis is very important. There are some researches about this evaluation, including certain merits and demerits. The diagnosis effect should be discussed by not only accuracy of diagnosis, but also distribution of life (trouble probability density). In order to examine their relationship, simplified evaluation model is proposed in this article.
For asset management support programs above mentioned, diagnosis effect (information of equipment condition) is simply implemented by three level classification of condition, and by correcting failure probability and maintenance cost characteristic.

報告者

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