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高壓斷路器在高壓電路中起操控效果,是高壓電路中的重要電器元件之一。斷路器用于在正常運(yùn)行時(shí)接通或斷開(kāi)電路,毛病狀況在繼電保護(hù)設(shè)備的效果下敏捷斷開(kāi)電路,特殊狀況(如主動(dòng)重合到毛病線(xiàn)路上時(shí))下可靠地接通短路電流。高壓斷路器是在正?;蛎顩r下接通或斷開(kāi)高壓電路的專(zhuān)用電器。
高壓斷路器的品種冗雜,一般可按下列辦法分類(lèi):按斷路器的安裝地址分可分為戶(hù)內(nèi)式和野外式兩種;按斷路器滅弧原理或滅弧介質(zhì)可分為油斷路器、真空斷路器、六氟化硫斷路器等等。
1、 油斷路器 選用絕緣油作為滅弧介質(zhì)的斷路器,稱(chēng)為油斷路器。它又可分為多油斷路器和少油斷路器。
多油斷路器中的絕緣油除作滅弧介質(zhì)運(yùn)用外,還作為觸頭斷開(kāi)后觸頭之間的主絕緣以及帶電部分與接地外殼之間的主絕緣運(yùn)用,多油斷路用具有用油量多、金屬耗材量大、易發(fā)生火災(zāi)或爆破、體積較大、加工工藝要求不高、耐用、價(jià)格較低一級(jí)特色?,F(xiàn)在在電力系統(tǒng)中除35kv等單個(gè)類(lèi)型的野外式多油斷路器仍有運(yùn)用外,其他多油斷路器已中止出產(chǎn)和運(yùn)用。
少油斷路器中的絕緣油首要作為滅弧介質(zhì)運(yùn)用,而帶電部分與地之間的絕緣首要選用瓷瓶或其他有機(jī)絕緣材料。這類(lèi)斷路器因用油量少,故稱(chēng)為少油斷路器。少油斷路用具有耗材少、價(jià)格低一級(jí)長(zhǎng)處,但需求定時(shí)檢修,有引起火災(zāi)與爆破的危險(xiǎn)。少油斷路器現(xiàn)在雖有運(yùn)用,但已逐步被真空斷路器和六氟化硫斷路器等新式斷路器代替。
2、 真空斷路器 真空斷路器,是使用“真空”作絕緣介質(zhì)和滅弧介質(zhì)的斷路器。這兒所謂的“真空”能夠理解為氣體壓力遠(yuǎn)遠(yuǎn)低于一個(gè)大氣壓的淡薄氣體空間,空間內(nèi)氣體分子極為稀疏。真空斷路器是將其動(dòng)、靜觸頭安裝在“真空”的密封容器(又稱(chēng)真空滅弧室)內(nèi)而制成的一種斷路器。
3、六氟化硫斷路器 六氟化硫斷路器是選用具有優(yōu)質(zhì)絕緣功能和滅弧功能的六氟化硫氣體作為滅弧介質(zhì)的斷路器。六氟化硫斷路用具有滅弧功能強(qiáng)、不自燃、體積小等長(zhǎng)處。
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Planet Products Hydraulic Motor MV.93 With Moog Valve
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