SHR(NHF)系列負荷鐵殼開關(guān)
概述
SHR(NHF)系列防護型熔斷器式負荷開關(guān),適用于50Hz,額定工作電壓415V(380)以下,直流額定電壓至440V,額定工作電流1600A以下。在工業(yè)企業(yè)配電系統(tǒng)中做不頻繁接通及分斷電路。
使用環(huán)境
1、 海拔高度2000米,
2、 環(huán)境溫度不高于+40℃,不低于-5℃,
3、 空氣相對濕度不大于95%,
4、 無爆炸危險的介質(zhì),且介質(zhì)無足以腐蝕金屬和破壞絕緣的氣體與塵埃,
5、 無顯著搖動和沖擊震動的地方,
6、 無雨雪侵襲的環(huán)境。
結(jié)構(gòu)特點
本開關(guān)采用防護鋼制鐵殼,內(nèi)裝負荷隔離開關(guān)及熔斷器組,配有柜外操作自鎖手柄。
三、 主要技術(shù)參數(shù)
型號含義
主要技術(shù)參數(shù)
額定電流A | 介電強度V | 絕緣電壓V | 分斷能力 | 接通能力 | 壽命 |
63 | 5000 | 750 | 1000 | 1250 | 10000 |
100 | 5000 | 750 | 1000 | 1250 | 10000 |
160 | 5000 | 750 | 1000 | 1250 | 10000 |
200 | 5000 | 750 | 1000 | 1250 | 10000 |
315 | 5000 | 750 | 1000 | 1250 | 10000 |
400 | 5000 | 750 | 1000 | 1250 | 10000 |
500 | 5000 | 750 | 1000 | 1250 | 10000 |
630 | 5000 | 750 | 1000 | 1250 | 10000 |
1000 | 5000 | 750 | 1000 | 1250 | 10000 |
1250 | 5000 | 750 | 1000 | 1250 | 10000 |
1600 | 5000 | 750 | 1000 | 1250 | 10000 |
使用維護
1.開關(guān)應(yīng)垂直安裝,安裝前應(yīng)檢查內(nèi)容是否符合使用要求。確認開關(guān)的使用狀態(tài),開關(guān)處于閉合狀態(tài),開關(guān)箱的門自鎖打不開,只有處于分斷狀態(tài)開關(guān)箱的門才能打開。
2.開關(guān)上端子和接線裸母線應(yīng)包扎絕緣物,防止開關(guān)相間短路。
3.開關(guān)每使用半年左右,就應(yīng)該進行一次維護。若轉(zhuǎn)動部位不靈活,可涂潤滑油。檢查緊固件是否有松動,且針對不同情況加以維修,若損壞嚴重則應(yīng)停止使用。
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