Inhloso eyinhloko yeswishi yokuhlukanisa ene-voltage ephezulu

1. Isetshenziselwa ukuhlukanisa ugesi ukuqinisekisa ukuphepha kokulungiswa, ukuze imishini kagesi elungiswayo ibe nendawo ecacile yokunqamula ugesi;

2. Yenza umsebenzi wokuvala ukuze ushintshe imodi yokusebenza yesistimu. Isibonelo, kusekethe enokusebenza kwebha yebhasi ephindwe kabili, sebenzisa iswishi yokuhlukanisa ukushintsha imishini noma umugqa kusuka eqenjini elilodwa lamabha yebhasi uye kwelinye iqembu lamabha yebhasi;

3. Ngaphansi kwezimo ezithile, ingasetshenziswa ukuxhuma nokunqamula izifunda ezincane zamanje. Uma usebenzisa iswishi yokuhlukanisa, imisebenzi elandelayo ingenziwa:

1) Hlukanisa futhi uvale i-voltage transformer kanye ne-arrester circuits.

2) Hlukanisa bese uvala amandla okushaja ebhasi.

3) Amaphuzu, ama-transformer angenamthwalo anawo umsinga wokuvuselela ohlangene ongadluli u-2A kanye nemigqa engenamthwalo enawo umsinga wokukhiqiza ongadluli u-5A.

Tukuhlukaniswa kwe-switch yokuhlukanisa i-voltage ephezulu

1. Ngokusho kwendawo yokufaka, ihlukaniswe ngezinhlobo ezimbili: ngaphakathi nangaphandle;

2. Ngokwenani lezinsika, ihlukaniswe ngezinhlobo ezimbili: i-unipolar kanye ne-tripolar;

3. Ngokwenani lezinsika zokuvikela, ihlukaniswe ngezinhlobo ezintathu: uhlobo lwekholomu eyodwa, uhlobo lwekholomu ephindwe kabili kanye nohlobo lwekholomu ezintathu;

4. Ngokwezici zesakhiwo, ihlukaniswe ngezinhlobo ezintathu: uhlobo lwe-guillotine, uhlobo lwesikulufu kanye nohlobo lwe-plug-in;

5. Ngokwemisebenzi ehlukene, ihlukaniswe ngezinhlobo ezimbili: ngeswishi yommese wokumisa umhlabathi kanye neswishi yommese wokumisa umhlabathi ngaphandle;

6. Ngokwendlela yokusebenza esetshenziswayo, ihlukaniswe phakathi: izindlela zokusebenza ngesandla, zikagesi kanye nezomoya.

Isenzakalo esingavamile kanye nokwelashwa kwe-switch yokuhlukanisa i-voltage ephezulu

1. Ingxenye yokuxhumana yeswishi yokuhlukanisa ishisiwe kakhulu

Ngaphansi kwezimo ezijwayelekile, iswishi yokuhlukanisa akufanele ishiswe ngokweqile. Uma iswishi yokuhlukanisa itholakala ukuthi ishiswe ngokweqile ngesikhathi sokusebenza, kufanele kuthathwe izinyathelo ezilandelayo:

1) Kuhlelo lwe-busbar oluphindwe kabili, lapho iqembu elilodwa lama-busbar disconnectors lishiswa, kufanele lishintshelwe kwelinye iqembu lama-busbar; lapho i-single busbar system disconnector ishiswa, zama ukunciphisa umthwalo. Uma izimo zivuma, kungcono ukususa i-isolation switch ekusebenzeni. Uma ugesi unganqanyulwa, kufanele ulungiswe ngokushesha, kungenjalo, ukuqapha kufanele kuqiniswe. Uma ukushisa kukhulu, i-circuit breaker ehambisanayo kufanele inqanyulwe ngokwemigomo.

2) Uma ingxenye yokuxhumana yeswishi yokuhlukanisa umugqa ishisa kakhulu, indlela yokwelapha iyafana neyeswishi yokuhlukanisa ibhasi elilodwa, kodwa ngenxa yokuvikelwa kwe-circuit breaker ochungechungeni, iswishi yokuhlukanisa ingaqhubeka nokusebenza, kodwa ukuqapha kudinga ukuqiniswa kuze kube yilapho ukucima kukagesi kungalungiswa.

2. Ukudonsa kabi nokuvala kabi inkinobho yokuhlukanisa ngomthwalo

Iswishi yokuhlukanisa ayinawo amandla okucima i-arc, futhi akuvunyelwe ngokuphelele ukudonsa noma ukuvala iswishi yokuhlukanisa ngomthwalo. Uma lesi simo senzeke, kufanele siphathwe ngale ndlela elandelayo:

1) Donsa inkinobho yokuzihlukanisa ngephutha

Uma i-blade isanda kusuka emaphethelweni e-blade (i-arc ishaywe kodwa ingaphukile), i-disconnector engakavulwa kufanele ivalwe ngokushesha ukuze kugwenywe i-arc short-circuit; uma i-disconnector ivuliwe, ayivunyelwe ukuvala, futhi i-disconnector kufanele iqinisekiswe ukuthi ivuliwe, inqamule i-circuit nge-circuit breaker, bese uvala i-isolation switch.

2) Ukuvala kabi iswishi yokuhlukanisa

Ngemva kokuba i-disconnector ivaliwe ngephutha ngomthwalo, ayivunyelwe ukuvulwa futhi, futhi kumele ivulwe ngemva kokuba i-circuit breaker isinqume i-circuit.

3. Iswishi yokuzihlukanisa yenqaba ukuvula nokuvala

1) ukwenqaba ukuvala

Uma iswishi yokuhlukanisa yenqaba ukuvala ngenxa yokwehluleka komshini, ingasetshenziswa ngenduku yokuvikela, noma uma kuqinisekiswa ukuphepha komuntu siqu, sebenzisa isikrufu ukuphendula umphini ojikelezayo weswishi yokuhlukanisa.

2) ukwenqaba ukuvula

Uma inkinobho yokuhlukanisa ingakwazi ukuvulwa, uma indlela yokusebenza iqandisiwe, ungayishukumisa kancane ukuze uthole iphuzu lesithiyo. Uma iphuzu lesithiyo lisengxenyeni yokuxhumana yenkinobho, alikwazi ukuvulwa ngenkani, ngaphandle kwalokho ibhodlela le-porcelain elisekelayo lingase lonakale.

4. I-porcelain yokushintsha ukuhlukaniswa yonakele

Uma kuyi-flashover discharge, ukuqapha kufanele kuqiniswe, futhi ukuhlanza kufanele kwenziwe ngemva kokufaka isicelo sokucima kukagesi; uma ibhodlela le-porcelain elisekelayo lonakele futhi liphukile, i-circuit breaker kufanele isetshenziswe ukunqamula i-circuit, futhi i-isolation switch eyonakele kufanele ihoxiswe ukuze ilungiswe.