Iswitshi Yokuqhawula Umthwalo Ophezulu Ofakwe kwiOyile

Umgaqo wokusebenza weswitshi yomthwalo we-voltage ephezulu ufana nowe-circuit breaker. Ngokubanzi, kufakwa isixhobo esilula sokucima i-arc, kodwa ulwakhiwo lwaso lulula. Umfanekiso ubonisa iswitshi yomthwalo we-high-voltage yomoya ocinezelweyo. Inkqubo yaso yokusebenza yile: xa ibhuleki ivuliwe, phantsi kwesenzo sentwasahlobo evulayo, i-main shaft ijikeleza ngokwewotshi. Kwelinye icala, i-piston inyuka iye phezulu nge-crank-slider mechanism ukuze icinezele igesi; Kwelinye icala, ngenkqubo yokudlulisela eyenziwe ziiseti ezimbini ze-four-bar linkage mechanism, imela ephambili ivulwa kuqala, kwaye emva koko imela yokucima i-arc ityhalelwa ukuvula i-arc contact, kwaye umoya ocinezelweyo kwi-cylinder uvuthuza i-arc nge-nozzle. Xa ivala, nge-main shaft kunye nenkqubo yokudlulisa, i-main blade kunye ne-arc-extinguishing blade zijikeleza ngokwewotshi ngaxeshanye, kwaye i-arc contact ivalwe kuqala; i-main shaft iyaqhubeka nokujikeleza, ukuze i-main contact ivalwe kamva. Ngexesha lenkqubo yokuvala, i-opening spring igcina amandla ngaxeshanye. Ekubeni iswitshi yomthwalo ingenakuphula umsinga wesekethe emfutshane, idla ngokusetyenziswa kunye nefusi ene-voltage ephezulu enomda wangoku. Umsebenzi we-current-limiting fuse ye-current-limiting fuse awunakugqibezela umsebenzi wokuphula umsinga wesekethe kuphela, kodwa ukwanciphisa kakhulu ubushushu obubangelwa ngumsinga wesekethe emfutshane. kunye namandla ombane.

Isiphumo sokutshintsha umthwalo we-high-voltage ofakwe kwi-oyile:
Iswitshi yomthwalo efakwe kwioyile efakwe kwioyile yetransformer. Iswitshi yomthwalo sisixhobo sokutshintsha phakathi kwe-circuit breaker kunye neswitshi yokwahlula. Inesixhobo esilula sokucima i-arc, esinokunqumla i-load current elinganisiweyo kunye ne-overload current ethile, kodwa ayinakunqumla i-short-circuit current. Iswitshi yomthwalo efakwe kwioyile yiswitshi yokudibanisa enamanqanaba amathathu efakwe kwi-transformer edibeneyo kwaye isebenzisa ioyile yetransformer njenge-insulation kunye ne-arc extinguishing medium. Ioyile yetransformer yimveliso yokwahlulahlula yepetroleum, kwaye izinto zayo eziphambili zii-alkanes, ii-hydrocarbons ezigcweleyo ze-naphthenic, ii-hydrocarbons ezi-aromatic unsaturated kunye nezinye izinto ezidityanisiweyo. Eyaziwa njenge-square shed oil, i-light yellow transparent liquid, i-relative density 0.895. I-freezing point <-45 ℃. Sebenzisa amandla e-arc ngokwayo ukubola kunye nokufaka igesi kwioyile ejikeleze i-arc kwaye uyipholise ukuze ucime i-arc. Ulwakhiwo lulula, kodwa ubunzima bukhulu, kwaye lufanelekile kwiimveliso zangaphandle ze-35kV nangaphantsi.