報告書番号

W08

タイトル（和文）

配電機材新技術

タイトル（英文）

NEW TECHNOLOGY FOR POWER-DISTRIBUTION APPARATUS

概要 （図表や脚注は「報告書全文」に掲載しております）

本報告書は以下の研究内容についてまとめたものである。２２ｋＶ用絶縁カバー付アークホーンの招弧特性の向上方策，内部故障時にも飛散物の発生を防止できる線路用避雷器及び反復動作ができる６．６ｋＶ用限流器の開発。損失低減が期待されるアモルファス変圧器や装柱の簡素化に有効な屋外用モールド変圧器の実用性能。低圧系統の短絡電流を高速に遮断できる新方式のヒューズや負荷機器側での瞬時電圧低下に対する低コストな電圧改善装置の開発。２００Ｖ定格機器の２３０Ｖでの運転性能と問題点の検討。高度な専門的知識を要する高圧，低圧配電系統の保護協調の最適化やＣＶケーブルの劣化診断を支援するエキスパートシステムのプロトタイプのを開発。

概要 （英文）

THIS PAPER SUMMERIZES RECENT RESEARCH WORK ON POWER-DISTRIBUTION EQUIPMENT. THE RESULTS WERE IMPROVED ARCING CHARACTERISTICS OF AN ARCING HORN WITH AN INSULATION COVER FOR 22-KV DISTRIBUTION,A LINE ARRESTER WITHOUT EXPLOSIVE PROJECTILES,AND A REPEATABLE CURRENT LIMITER FOR 6.6-KV DISTRIBUTION. SOME NEW TRANSFORMERS SUCH AS AMORPHOUS METAL CORE TRANSFORMERS WITH LOW POWER LOSS AND MOULD TRANSFORMERS THAT CAN BE COMBINED WITH OTHER DISTRIBUTION EQUIPMENT LIKE CUT-OUTSARE DISCUSSED. FOR LOW-VOLTAGE SYSTEMS,NEW DEVICES HAVE BEEN DEVELOPEDSUCH AS A HIGH-SPEED FUSE WHICH EFFECTIVELY CUTS SHORT-CIRCUIT CURRENTS IN LOW-VOLTAGE SYSTEMS,LOW-COST VOLTAGE STABILIZER FOR SHORT TIME VOLTAGE RECESS. THE OPERATING PERFORMANCE AT 230 V HAS BEEN INVESTIGATED FOR LOW-VOLTAGE EQUIPMENT WITH A REGULAR VOLTAGE OF 200 V WITH RESPECT TO THE DISTRIBUTION VOLTAGE SHIFT. SEVERAL EXPERT SYSTEMS HAVE BEEN DEVELOPED SUCH AS A CURRENT PROTECTION COORDINATION SYSTEM FOR HIGH- AND LOW-VOLTAGE DISTRIBUTION SYSTEMS AS WELL AS FOR INSULATION DIAGNOSIS OF 6.6-KV XLPE POWER CABLES USING FUZZY INFERENCE MECHANISMS.

報告者

キーワード