概述
Summary
FN(以下簡(jiǎn)稱(chēng)FN12-12D負(fù)荷開(kāi)關(guān))是額定電壓為12KV,額定頻率為50Hz的三相高壓開(kāi)關(guān)設(shè)備,用于分合負(fù)荷電流,空載變壓器和電纜充電電流,關(guān)合短路電流。配裝接地開(kāi)關(guān)的負(fù)荷開(kāi)關(guān),可以承受短時(shí)電流。
(以下簡(jiǎn)稱(chēng)FN12-12(R)D組合電器),是在FN7-12D負(fù)荷開(kāi)關(guān)與S□LAJ-12(XRNT□-10)高壓限流式熔斷器組合在一起的戶(hù)內(nèi)高壓開(kāi)關(guān)設(shè)備。它可以開(kāi)斷直至短路電流的任何電流;負(fù)荷開(kāi)關(guān)開(kāi)斷工作電流,熔斷器開(kāi)斷短路電流,聯(lián)合開(kāi)斷工作電流與全短路電流之間的任何電流,同時(shí)熔斷器通過(guò)其碰撞使負(fù)荷開(kāi)關(guān)分閘。
It is a three phase H.V switch equipment of 12KV 50Hz for breaking or closing load current. No-load transformer cable charging current and closing short-circuit current.The load switch with earth switch can bear short-circuit current.
It is made up of FN12-12D load switch and S□LAJ-12(XRNT□-10)H.V current.Jointly breaking any current between short-circuit current.Meantime.Fuse box make the switch off of with the striker.
適用范圍
Application
FN12-12D/負(fù)荷開(kāi)關(guān)FN12-(R)D組合電器主要用三相環(huán)網(wǎng)或終端供電的市區(qū)配電站和工業(yè)用電設(shè)備中,作負(fù)荷控制和短路保護(hù)之用。由于組合電器對(duì)變壓器等電器設(shè)備的保護(hù)作用比用斷路器更可靠,特別適用于環(huán)網(wǎng),比輻射代單元和箱式變電站。
It is used in the ring network city distribution and industrial equipment of 12KV and three-phase AC 50Hz to cortrol load and short-circuit.Because the switch with fuse protecting transformer etc more reliably than circuit breaker .It is especialy suitable for ring network clouble radial distribution and package substtion.
產(chǎn)品采用標(biāo)準(zhǔn)
Standard
a、GB3804-90《3~65KV交流高壓負(fù)荷開(kāi)關(guān)》b、GBXXX-XX《交流高壓負(fù)荷開(kāi)關(guān)-熔斷器組合電器》(等效IEC420-1990)c、GB1995-89《交流高壓隔離開(kāi)關(guān)和接地開(kāi)關(guān)》
a、GB3804-90《3~65KV AC H.V Load switch》b、GBXXX-XX《AC H.V load switch with fuse box》(the same IEC420-1990)c、GB1995-89《AC H.V isolate switch and earth switch》
正常工作環(huán)境
Normal Serviec Condition
A、周?chē)諝鉁囟?不高于 +40oC 不低于-25oC;B、海拔不超過(guò)1000米;C、相對(duì)濕度,月平均值不大于90%,日平均值不大于95%;D、周?chē)諝鈶?yīng)不受腐蝕性、可燃性氣體及水蒸汽體等明顯污染;E、無(wú)經(jīng)常性的劇烈運(yùn)動(dòng);F、耐污穢等級(jí):Ⅱ級(jí)。