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詳細介紹
1、概述
ZW7-24﹙40.5﹚型戶外交流高壓小型化真空斷路器（以下簡稱斷路器）是一種以真空作為滅弧介質(zhì)，三相交流50Hz的高壓電器設(shè)備，主要用于24（40.5）kV級高壓輸配電系統(tǒng)分合額定電流及故障電流。尤其適用于頻繁操作的場所。本斷路器符合IEC56《高壓交流斷路器》，GB/T1984-1989《交流高壓斷路器》等相關(guān)標準。
1、General presentation
ZW□-24(40.5) AC outdoor high voltage vacuum circuit breaker is a high voltage electric equipment which use vacuum as its arc extinguish devicethree pole,50Hz.The breaker used in 24(40.5)kV high voltage distribution system for openclose rating currentfailure current,especially used to suits the place which operated often .The breaker’s standards have to in accordance with IEC56,GB/T 1984-1989
2、斷路器的主要技術(shù)參數(shù)見表
2、Main technical parameter
| 序號 | 項目 （subject） | 單位 (unit) | 數(shù)值 (value) | ||
| 1 | 額定電壓(Rating voltage) | KV | 24(40.5) | ||
| 2 | 額定頻率(Rating frequency) | Hz | 50 | ||
| 3 | 額定電流(Rating current) | A | 1600 | ||
| 4 | 額定絕緣水平(Rating insulation level) | KV | 65(95) | ||
| 125(185) | |||||
| 5 | 額定短路開斷電流（Rated short circuit breaking current） | KA | 20 | 25 | 31.5 |
| 6 | 額定短路開斷電流開斷次數(shù)（Rated short circuit breaking time） | 次 | 20 | ||
| 7 | 額定短路開合電流（峰值）Rated short circuit O/C current(peak) | KA | 50 | 63 | 80 |
| 8 | 額定峰值耐受電流(Rated withstand current in peak value | KA | 50 | 63 | 80 |
| 9 | 額定短時耐受電流/短路持續(xù)時間(4s) （Rated short time withstand current/short circuit continuance time(4s) | 20 | 25 | 31.5 | |
| 10 | 額定電容器組開斷電流(Rated capacity breaking current) | | 400 | ||
| 11 | 額定操作順序(Rated operation ranking) | A | 分0.3s合分180s合分 O-0.3s-co-180s-co | ||
| 12 | 全開斷時間(Total breaking time) | S | 0.1 | ||
| 13 | 合閘時間(Close time) | Ms | T≤120 | ||
| 14 | 分閘時間(Breaking time) | Ms | T≤60 | ||
| 15 | 機械壽命Mechanical lifecycle | 次 | 10000 | ||
| 16 | 動靜觸頭允許磨損累計厚度Activity connector allowed fret thickness | Mm | 3 | ||
| 17 | 重量Weight | kg | 600 | ||
3、斷路器配CT□型彈簧操動機構(gòu)
3、Breaker assembled CT□ type spring operation device
4、主要特點
該小型化戶外真空斷路器是在原ZW7-24(40.5)型斷路器的基礎(chǔ)上改進的，具有體積小，重量輕，外型美觀，所用真空滅弧室為新設(shè)計的小型化滅弧室，并采用了軟包封技術(shù)，放置在由戶外環(huán)氧樹脂壓制成型的絕緣支柱殼體內(nèi)，電流互感器和支柱瓷瓶合二為一，也采用戶外環(huán)氧樹脂壓制成型，另外斷路器的彈操機構(gòu)的儲能減速箱為一個密封整體，從而提高了操動機構(gòu)的可靠性。
4、Character
The breaker has improved based on ZW7-24(40.5)breaker.It has smallest cubage,light,and perfect externality.Vacuum are extinguish chamber use soft packaging technologyinstalled in insulation support shell,which made by outdoor epoxy resincurrent transformer combine
porcelain support,which made by outdoor epoxy resin as well.In addition,
the power storage of spring operation device airproof for improves reliable of operation device.
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