什么是變電所？
變(bian)電(dian)(dian)(dian)所(suo)是(shi)一個(ge)地方，變(bian)壓器是(shi)變(bian)電(dian)(dian)(dian)所(suo)不(bu)能缺(que)少的一個(ge)設備。變(bian)電(dian)(dian)(dian)所(suo)顧(gu)名(ming)思(si)義(yi)就(jiu)是(shi)變(bian)電(dian)(dian)(dian)，主要(yao)是(shi)中(zhong)壓變(bian)壓提供(gong)低(di)壓電(dian)(dian)(dian)源；變(bian)電(dian)(dian)(dian)站也是(shi)變(bian)電(dian)(dian)(dian)，但主要(yao)是(shi)高壓變(bian)電(dian)(dian)(dian)中(zhong)壓，或高壓變(bian)電(dian)(dian)(dian)低(di)一級高壓，變(bian)電(dian)(dian)(dian)站占(zhan)地較大，根據(ju)不(bu)同電(dian)(dian)(dian)壓等級及容量不(bu)同占(zhan)地不(bu)同。
變電所按電壓等級怎么分？
可分為中壓變電(dian)所(suo)（60千伏及(ji)以(yi)下）、高壓變電(dian)所(suo)（110～220千伏）、超高壓變電(dian)所(suo)（330～765千伏），和特(te)高壓變電(dian)所(suo)（1000千伏及(ji)以(yi)上）。
那按照電力系統中的地位如何分？
分為樞紐變(bian)電(dian)(dian)所、中間(jian)變(bian)電(dian)(dian)所和終端變(bian)電(dian)(dian)所。
變電(dian)所由主(zhu)接線，主(zhu)變壓(ya)器，高、低壓(ya)配(pei)(pei)電(dian)裝置(zhi)，繼(ji)電(dian)保護和控(kong)制系統，所用電(dian)和直(zhi)流系統，遠(yuan)動和通信(xin)系統，必(bi)要的無功(gong)功(gong)率補(bu)償裝置(zhi)和主(zhu)控(kong)制室等(deng)組成。其中，主(zhu)接線、主(zhu)變壓(ya)器、高低壓(ya)配(pei)(pei)電(dian)裝置(zhi)等(deng)屬(shu)于(yu)一次系統；繼(ji)電(dian)保護和控(kong)制系統、直(zhi)流系統、遠(yuan)動和通信(xin)系統等(deng)屬(shu)二(er)次系統。
什么是變、配電所？
變(bian)、配電所主要(yao)指小(xiao)區(qu)或大樓等的變(bian)配電間，變(bian)電所帶變(bian)壓(ya)器，配電所應不帶變(bian)壓(ya)器。
那開閉所是什么呢？
開(kai)閉所(suo)是(shi)將高壓(ya)電(dian)(dian)(dian)力(li)分別(bie)向周圍(wei)的幾個(ge)用電(dian)(dian)(dian)單(dan)位供(gong)(gong)電(dian)(dian)(dian)的電(dian)(dian)(dian)力(li)設施，位于電(dian)(dian)(dian)力(li)系統(tong)中變(bian)電(dian)(dian)(dian)站(zhan)(zhan)的下一級。其特征是(shi)電(dian)(dian)(dian)源進(jin)線側和出線側的電(dian)(dian)(dian)壓(ya)相同。當然(ran)，區(qu)域變(bian)電(dian)(dian)(dian)站(zhan)(zhan)也具有(you)開(kai)閉所(suo)的功能。但需明確的是(shi)，開(kai)閉所(suo)是(shi)區(qu)別(bie)于變(bian)電(dian)(dian)(dian)站(zhan)(zhan)而(er)言的。一般為2路電(dian)(dian)(dian)源，轉供(gong)(gong)容量8000KW左右，向地塊或區(qu)域的變(bian)配(pei)電(dian)(dian)(dian)室提供(gong)(gong)中壓(ya)電(dian)(dian)(dian)源。
開(kai)(kai)閉所也指用于接受電力(li)并分(fen)配電力(li)的(de)供(gong)配電設施，高(gao)壓電網中稱為開(kai)(kai)關(guan)站。中壓電網中的(de)開(kai)(kai)閉所一般用于10kV電力(li)的(de)接受與(yu)分(fen)配。
開(kai)閉所(suo)一般兩進多(duo)出(chu)（常用4~6出(chu)），只是根據不(bu)(bu)同的要求，進出(chu)可以(yi)設(she)置斷路(lu)器(qi)、負荷開(kai)關。在鐵路(lu)電(dian)力系統中，開(kai)閉所(suo)（sub-sectionpost）牽引網(wang)有分支引出(chu)時(shi)，為保證(zheng)不(bu)(bu)影(ying)響電(dian)力牽引安全可靠(kao)供電(dian)而設(she)的帶保護跳匣(xia)斷路(lu)器(qi)等設(she)施的控制場所(suo)。多(duo)設(she)于樞紐站、編組場、電(dian)力機務段(duan)和折返段(duan)等處。
何謂配電箱？
配電(dian)(dian)(dian)箱(xiang)(xiang)如(ru)照明、動力配電(dian)(dian)(dian)箱(xiang)(xiang)等，是配電(dian)(dian)(dian)的(de)后幾級。配電(dian)(dian)(dian)箱(xiang)(xiang)switchbox；distributionbox按電(dian)(dian)(dian)氣接線要求將(jiang)開關(guan)設備(bei)、測量(liang)儀(yi)表(biao)、保護電(dian)(dian)(dian)器和(he)輔助設備(bei)組裝在封閉(bi)(bi)或(huo)半封閉(bi)(bi)金屬柜中(zhong)或(huo)屏(ping)幅上，構成低壓配電(dian)(dian)(dian)裝置。正常(chang)(chang)運行(xing)時(shi)可借助手動或(huo)自動開關(guan)接通或(huo)分斷電(dian)(dian)(dian)路。故障或(huo)不(bu)正常(chang)(chang)運行(xing)時(shi)借助保護電(dian)(dian)(dian)器切(qie)斷電(dian)(dian)(dian)路或(huo)報警。借測量(liang)儀(yi)表(biao)可顯示運行(xing)中(zhong)的(de)各(ge)種(zhong)參(can)數，還可對某些電(dian)(dian)(dian)氣參(can)數進(jin)行(xing)調(diao)整，對偏離正常(chang)(chang)工作狀態進(jin)行(xing)提示或(huo)發出信號。常(chang)(chang)用于各(ge)發、配、變(bian)電(dian)(dian)(dian)所(suo)中(zhong)。
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