1、電網(wǎng)電壓等級(jí)對(duì)應(yīng)的中壓開(kāi)關(guān)柜(開(kāi)關(guān)柜哪家好 )電壓等級(jí)各是多少，威海gcs開(kāi)關(guān)柜(鎧裝開(kāi)關(guān)柜 )為什么開(kāi)關(guān)柜(配電開(kāi)關(guān)柜 )的電壓要比對(duì)應(yīng)的電網(wǎng)電壓高（如35KV電網(wǎng)對(duì)應(yīng)40.5KV開(kāi)關(guān)柜(雙層開(kāi)關(guān)柜 )）,是如何計(jì)算出來(lái)的，威海gck開(kāi)關(guān)柜(西門(mén)子35KV開(kāi)關(guān)柜 )有沒(méi)有相關(guān)標(biāo)準(zhǔn)要求等規(guī)范（如國(guó)標(biāo)等）?
6kv系統(tǒng)電壓等級(jí)對(duì)應(yīng)7.2kv開(kāi)關(guān)柜(小型化開(kāi)關(guān)柜 ),相應(yīng)的10kv-->12kv20kv-->24kv35kv-->40.5設(shè)備額定電壓未系統(tǒng)運(yùn)行電壓均方根值,大概1.2倍必須要大,不能正合適,要有余量。威海gcs開(kāi)關(guān)柜(直流開(kāi)關(guān)柜 )
2、為什么10KV的電壓等級(jí)選擇KYN28-12的柜型，威海10kv高壓開(kāi)關(guān)柜(中低壓開(kāi)關(guān)柜 )型號(hào)35KV的選擇JYN-40.5的柜型？那6KV選多大？7.2KV么？
高（中）壓開(kāi)關(guān)柜(中置開(kāi)關(guān)柜 )的額定電壓按GB/T11022-1999標(biāo)準(zhǔn)
4.1 額定電壓（Ur）5]
額定電壓為開(kāi)關(guān)設(shè)備和控制設(shè)備所在系統(tǒng)的最高電壓上限。威海gck開(kāi)關(guān)柜(繞線(xiàn)電機(jī)開(kāi)關(guān)柜 )
額定電壓的標(biāo)準(zhǔn)值如下：
4.1.1 范圍I
額定電壓252kV及以下：3.6，威海10kv高壓開(kāi)關(guān)柜(鼠籠電機(jī)開(kāi)關(guān)柜 )結(jié)構(gòu)7.2，威海10kv高壓開(kāi)關(guān)柜(源創(chuàng)開(kāi)關(guān)柜 )柜后放電12，威海10kv高壓開(kāi)關(guān)柜(五防開(kāi)關(guān)柜 )故障24，威海10kv高壓開(kāi)關(guān)柜(一體化開(kāi)關(guān)柜 )設(shè)計(jì)40.5，威海10kv高壓開(kāi)關(guān)柜(源創(chuàng)生產(chǎn)的開(kāi)關(guān)柜 )故障停電72.5，威海10kv高壓開(kāi)關(guān)柜(高低壓無(wú)線(xiàn)開(kāi)關(guān)柜 )母線(xiàn)安裝方案126，威海10kv高壓開(kāi)關(guān)柜(可遠(yuǎn)程控制的開(kāi)關(guān)柜 )主母線(xiàn)多大252kV。威海10kv高壓開(kāi)關(guān)柜(山東開(kāi)關(guān)柜 )型號(hào)
4.1.2 范圍Ⅱ
額定電壓252kV以上：363，威海10kv高壓開(kāi)關(guān)柜(濰坊開(kāi)關(guān)柜 )原理圖550，威海35kv高壓開(kāi)關(guān)柜(上海開(kāi)關(guān)柜 )型號(hào)800kV。威海10kv高壓開(kāi)關(guān)柜(高壓開(kāi)關(guān)柜 )結(jié)構(gòu)
12kv是設(shè)備額定電壓，威海35kv高壓開(kāi)關(guān)柜(高低壓開(kāi)關(guān)柜 )尺寸10kv是系統(tǒng)額定電壓，威海35kv高壓開(kāi)關(guān)柜(開(kāi)關(guān)柜 )的額定電壓是多少7.2kv和6kv也是如此。威海10kv高壓開(kāi)關(guān)柜(帶智能操控裝置開(kāi)關(guān)柜 )柜后放電