Ukusetshenziswa kwamaswishi ane-voltage ephansi kungenza isistimu yamandla isebenze ngokuzinza nangokuphephile.Isigaba esiqondile simi kanje:

Ngokusho kwesakhiwo sangaphakathi esihlukile se-low-voltage switch, ingahlukaniswa ibe iswishi yokunqamula kanye neswishi yaphansi.Umgomo ojwayelekile wokulawula ulawulwa yi-switch fuse.Ngokuya ngendlela yokuhlukanisa, ingasetshenziswa futhi ekushintsheni kokulayisha kanye nokushintsha kwe-fuse.Ngokwezindlela ezihlukene zokuvala zokushintsha, ingabuye ihlukaniswe ngokushintsha okuvulekile nokuvaliwe.Enqubweni yokukhetha, kuncike esimweni sangempela.

Iswishi yokuhlukanisa i-low-voltage iwuhlobo lokushintshwa okuhlukanisayo.Yiswishi esetshenziswa kakhulu ku-high-voltage switchgear.Idlala indima ebaluleke kakhulu ekusungulweni nasekusebenzeni okuphephile kwezitshalo zamandla.

Lapho unqamula umthamo wamanje, iswishi yokuhlukanisa i-low-voltage ayikwazi ukudlula inani layo lamanje lokunqamula elivumelekile.Ukushintsha okuhlukanisayo kwe-low-voltage yesakhiwo esijwayelekile akuvunyelwe ukusebenza ngomthwalo, ama-switch switches ahlukanisa i-voltage aphansi kuphela afakwe amakamelo okucisha i-arc angavumela inani elincane lokulayisha okungavamile.Kuyaphawuleka ukuthi umjikelezo wesigaba esifushane wesigaba sesithathu somugqa lapho iswishi yokuhlukanisa i-low-voltage akumele idlule amanani ashiwo aguquguqukayo kanye nezimo ezishisayo.

I-voltage ephansi yokuhlukanisa umsebenzi wokushintsha:

I-1.I-switch ye-isolation ingaba nomthelela omuhle wokuhlukanisa, ukuze yonke isekethe iphephe futhi ivikeleke, futhi izisebenzi zokunakekela noma izisebenzi nazo zingalungisa isekethe ngesikhathi.

I-2.Ngaphezu kwalokho, i-low-voltage isolation switch inomsebenzi wokushintsha umjikelezo, futhi ukushintshwa okunjalo kusetshenziselwa kabanzi ezimbonini zikagesi.Isibonelo simi kanje: ulayini wokukhiqiza udinga ukushintsha ukuhleleka kokucaciswa komkhiqizo noma amamodeli.Ngalesi sikhathi, inkinobho yokuhlukanisa ingashintsha imodi yokusebenza yesekethe ngokunqamula ukunikezwa kwamandla, ukuze kwandiswe inzuzo yesekethe.

3.Ngaphezu kwemisebenzi engenhla, inkinobho yokuhlukanisa i-voltage ephansi nayo ingaxhuma umugqa.Emishinini ye-low-voltage yezindlu zokuhlala noma izakhiwo ezijwayelekile, ukushintshwa kwe-isolation kunciphisa ingozi efihliwe yezingozi zokuphepha ngokusebenzisa umsebenzi ongewona owenziwe ngesandla.Lokhu kwenza izimpilo zethu zibe lula kanye nokusebenza kokusatshalaliswa kwamandla kanye nokudluliswa kwamandla.

I-grounding switch iyiswishi esetshenziselwa ukuxhuma noma ukunqamula isekethe yaphansi yezinto zokusebenza zikagesi kanye nokunikezwa kwamandla kagesi.Umsebenzi wawo oyinhloko ukuvimbela ukwehluleka kwe-short-circuit noma uxhumano lwamandla kagesi ngephutha, ukuvikela ukuphepha komuntu siqu nokusebenza okuphephile kwempahla kagesi.Izindima ezibalulekile ezibalulekile zichazwe kanjena:

1. Ukuvikelwa kwesistimu

Ezinhlelweni zamandla, amaphutha aphansi ayinto evamile.Uma kwenzeka iphutha eliphansi emishinini yamandla, kuzoholela ekunciphiseni ukusebenza kukagesi kwemishini, futhi kulula ukubangela imiphumela emibi njengomlilo.Ngalesi sikhathi, umshini wokumisa phansi unganqamula ngokushesha umjikelezo ophansi, ukuze ugweme ukwanda kwamaphutha futhi uvikele ukusebenza okuphephile kwemishini kagesi.

2. Ukuvikelwa kokuphepha komuntu siqu

Uma ukuvuza kwenzeka ku-casing yezinto zokusebenza zikagesi, isifunda esiphansi siyindlela eyingozi kakhulu engabangela izingozi ezifana nokulimala komuntu siqu noma ukufa.I-grounding switch inganqamula isekethe ephansi ngesikhathi lapho kukhona ukuvuza kukagesi, ukuze kuvinjwe umsinga ukuthi ungadluli emzimbeni womuntu futhi uqinisekise ukuphepha komuntu siqu.

3. Gcina izinto zokusebenza

Enqubweni yokugcinwa kolayini noma okokusebenza kanye nokulungisa kabusha, ngokuvamile ukuze kuqinisekiswe ukuphepha kwabasebenzi, ukuxhumana phakathi kwezinto zokusebenza nohlelo lwamandla kufanele kunqanyulwe kuqala.Ngalesi sikhathi, ukushintshwa komhlaba kunganqamula kalula umjikelezo ophansi ukuze kuqinisekiswe ukuphepha kwabasebenzi kanye nokugcinwa okuvamile kwemishini.

Emikhakheni ehlukene, incazelo ye-low voltage switch izohluka.Kodwa-ke, imisebenzi eyinhloko ye-low-voltage switch yilena: ukushintsha, ukuvikela, ukutholwa kokulawula nokulungiswa.