UMAHLUKO PHAKATHI KWESITSHISHI ESIQHAWULEKILEYO NESITSHISHI SOMTHWALO

Abantu abaninzi abaqondi ukuba iswitshi yokuzihlukanisa kunye neswitshi yomthwalo, iintlobo ezimbini zeswitshi zithathwa njengezinto ezisetyenziswa kwihlabathi liphela, zinokutshintshwa, kodwa kwezinye iimeko azinakutshintshwa, i-Kesu electromechanical xiaobian ikuxelela ukuba yintoni umahluko phakathi kweswitshi yokuzihlukanisa kunye neswitshi yomthwalo.

Iswitshi yokwahlukanisa ayinaso isixhobo sokucima i-arc, inokuqhawula kuphela umbane olinganisiweyo, ngoko ke kwi-loop kuphela njengesixhobo sokwahlukanisa, esidinga ukulungiswa siya kwahlulwa kumbane kunye nomthwalo.

Iswitshi yokulayisha inesixhobo sokucima i-arc ukuze ikhuphe umsinga wempazamo, kwaye unxibelelwano lwayo lungasetyenziswa njengeswitshi yokwahlukanisa, kunye nemisebenzi yokwahlukanisa kunye nokukhupha i-disconnect.
Iiswitshi zomthwalo zihlala zenziwe ziifusi kunye neeswitshi zokuqhawula. Iswitshi yokuqhawula isetyenziselwa ukusebenza kweluphu eqhelekileyo, kwaye ifusi isetyenziselwa ukuqhawula umsinga wempazamo weluphu.

Intshayelelo kwiswitshi yokuqhawula unxibelelwano:

Iswitshi yokwahlukanisa luhlobo lwesixhobo sokutshintsha esisetyenziselwa kakhulu ukwahlukanisa umbane, ukutshintsha ukusebenza, ukudibanisa kunye nokunqumla isekethe encinci yangoku, ngaphandle komsebenzi wokucima i-arc.
Xa iswitshi yokuzihlukanisa ikwindawo eyahlukileyo, kukho umgama wokuthintela ukufudumeza phakathi kwabafowunelwa ngokuhambelana neemfuno kunye nophawu olucacileyo lokuqhawula;
Iswitshi ekwaziyo, xa ivaliwe, ukuthwala umsinga phantsi kweemeko eziqhelekileyo zeluphu kunye nomsinga phantsi kweemeko ezingaqhelekanga (umz. i-short circuit) ixesha elithile.
Ngokubanzi isetyenziswa njengeswitshi yokwahlukanisa amandla aphezulu, oko kukuthi, i-voltage elinganisiweyo ngaphezu kwe-1kV yokwahlukanisa amandla, umgaqo wayo wokusebenza kunye nolwakhiwo ilula kakhulu, kodwa ngenxa yokusetyenziswa kweemfuno ezinkulu nezithembekileyo, isikhululo sombane, uyilo lwesityalo samandla, ukusekwa kunye nokusebenza ngokukhuselekileyo kwempembelelo zinkulu.
Eyona nto iphambili kwiswitshi yokuqhawula umbane kukuba ayinayo i-arcing kwaye inokuvula nokuvala kuphela isekethe ngaphandle komsinga womthwalo.
Eli nqaku lazisa umsebenzi, iimpawu, iintlobo, usetyenziso, ukuphuculwa kokuthintela iimpazamo, ukugcinwa, iingxaki eziqhelekileyo zeswitshi yokuzihlukanisa.

Intshayelelo emfutshane yokutshintsha umthwalo:

Iswitshi yomthwalo sisixhobo sokutshintsha phakathi kwe-circuit breaker kunye neswitshi yokuqhawula. Inesixhobo esilula sokucima i-arc, esinokunqumla i-load current elinganisiweyo kunye ne-overload current ethile, kodwa asinakuyinqumla i-short circuit current.
Uhlu lokutshintsha umthwalo: ngokwendlela osetyenziswa ngayo i-voltage, lunokwahlulwa lube yi-high voltage load switch kunye ne-low voltage load switch.
Iiswitshi zomthwalo zisetyenziswa kakhulu ukuvula nokucima umsinga womthwalo, okanye zingasetyenziswa neefusi zevolthi ephezulu endaweni yee-circuit breakers.
Ngenxa yokuba ilula kwaye inexabiso elifanelekileyo, iswitshi yokulayisha isetyenziswa kakhulu kwinkqubo yokusasaza ye-10kV.
Ukukhetha ngokufanelekileyo iswitshi yomthwalo kuyilo kubaluleke kakhulu ukuqinisekisa ukhuseleko kunye nokusebenza okuthembekileyo kwegridi yombane.