Umsebenzi weSwitch Break Break

Iiswitshi yokulayishasisixhobo sokutshintsha phakathi kwe-circuit breaker kunye ne-isolation switch. Sinesixhobo esilula sokucima i-arc, esinokunqumla i-load current elinganisiweyo kunye ne-overload current ethile, kodwa asinakuyinqumla i-short-circuit current.

Iiswitshi yokulayishaIsetyenziswa kakhulu ukuphula nokuvala umsinga womthwalo, kwaye iswitshi yomthwalo ingasetyenziswa kunye nefuse ye-high-voltage ukuze ithathe indawo ye-circuit breaker. Ngenxa yokuba iswitshi yomthwalo kulula ukuyisebenzisa kwaye ixabiso layo lifanelekile, iswitshi yomthwalo isetyenziswa kakhulu kwinkqubo yenethiwekhi yokusasazwa kwe-10kV. Ukukhetha ngokufanelekileyo iiswitshi zomthwalo kuyilo kubaluleke kakhulu ukuqinisekisa ukusebenza okukhuselekileyo nokuthembekileyo kwegridi yamandla.

Inkqubo yokusebenza yeswitshi yomthwalo yile ilandelayo: xa ibhuleki ivuliwe, phantsi kwesenzo sentwasahlobo evulayo, ishaft ephambili ijikeleza ngokwewotshi. Kwelinye icala, i-piston inyuka nge-crank-slider mechanism ukuze icinezele igesi; kwelinye icala, ngokusebenzisa iiseti ezimbini ze-four-bar linkage mechanism Inkqubo yokudlulisa eyenziweyo yenza imela ephambili ivuleke kuqala, emva koko ityhala imela yokucima i-arc ukuvula i-arc contact, kwaye umoya ocinezelweyo kwisilinda ukhupha i-arc nge-nozzle.

Umgaqo wokusebenza weswitshi yomthwalo wevolthi ephezulu ufana nowe-circuit breaker. Ngokubanzi, kufakwa isixhobo esilula sokucima i-arc, kodwa ulwakhiwo lwaso lulula. Umfanekiso ubonisa iswitshi yomthwalo womoya ocinezelweyo. Inkqubo yaso yokusebenza yile ilandelayo: xa ibhuleki ivuliwe, phantsi kwesenzo sentwasahlobo evulayo, ishaft ephambili ijikeleza ngokwewotshi. Kwelinye icala, i-piston inyuka iye phezulu nge-crank-slider mechanism ukuze icinezele igesi.

Kwelinye icala, ngenkqubo yokudlulisa eyenziwe ziiseti ezimbini zeendlela zokudibanisa ezineebha ezine, imela ephambili iyavulwa kuqala, emva koko imela yokucima i-arc iyatyhalwa ukuvula i-arc contact, kwaye umoya ocinezelweyo kwisilinda uvuthela i-arc nge-nozzle. Xa ivala, nge-main shaft kunye ne-transmission system, i-main blade kunye ne-arc-extinguishing blade zijikeleza ngokwewotshi ngaxeshanye, kwaye i-arc contact ivaliwe kuqala; i-main shaft iyaqhubeka nokujikeleza, ukuze i-main contact ivalwe kamva.

Ngexesha lenkqubo yokuvala, intwasahlobo yokuvula igcina amandla ngaxeshanye. Ekubeni iswitshi yomthwalo ingenakuphula umsinga wesekethe emfutshane, idla ngokusetyenziswa kunye nefusi ye-high-voltage ekhawulela umsinga. Umsebenzi we-current-limiting fuse ye-current-limiting fuse awunakugqibezela umsebenzi wokuphula isekethe kuphela, kodwa ukwanciphisa kakhulu ubushushu obubangelwa ngumsinga wesekethe emfutshane. kunye namandla ombane.