高(gao)低壓開關(guan)柜是(shi)接高(gao)壓或者(zhe)低壓電(dian)(dian)纜的設備，高(gao)壓開關(guan)柜一(yi)般用于(yu)供電(dian)(dian)局和變電(dian)(dian)站，經過變壓器降壓到(dao)低壓柜，再到(dao)各個用電(dian)(dian)的配(pei)電(dian)(dian)箱。高(gao)低壓開關(guan)柜是(shi)一(yi)種(zhong)電(dian)(dian)氣設備，用以保(bao)障用電(dian)(dian)安全。 

高(gao)(gao)低壓(ya)開關柜(ju)的內(nei)部有(you)交(jiao)流接觸器械、自(zi)控設備、儀表盤等，根據不同的情況(kuang)，高(gao)(gao)低壓(ya)開關柜(ju)內(nei)部結構組(zu)成也會有(you)所差(cha)別。