Iziguquli zokuthepha zingamadivayisi anganyusa noma ehlise i-voltage yesibili ephumayo ngokushintsha isilinganiso sokujika sokujikajika okuyisisekelo noma kwesibili. Umshini wokushintsha umpompi uvamise ukufakwa esigabeni samandla kagesi aphezulu we-transformer enamawindi amabili, ngenxa yamanje ephansi kuleyo ndawo. Iziguquli ziphinde zihlinzekwe ngama-voltage aphezulu e-transformer kagesi uma kukhona ukulawula okwanele kwe-voltage. Ukushintsha kwe-voltage kuyathinteka uma ushintsha inani lokuphenduka kwe-transformer enikezwe ompompi.
Kunezinhlobo ezimbili ze-Tap Changers:
1. On-Layisha Tap Changer
Isici saso esiyinhloko ukuthi ngesikhathi sokusebenza, isifunda esiyinhloko sokushintsha akufanele sivulwe. Lokhu kusho ukuthi ayikho ingxenye yeswishi okufanele ithole isifunda esifushane. Ngenxa yokwanda nokuxhumana kwesistimu yamandla, kubaluleka ukushintsha ompompi boshintsho izikhathi eziningi nsuku zonke ukuze kuzuzwe amandla kagesi adingekayo ngokwesidingo somthwalo.
Lesi sidingo sokunikezwa okuqhubekayo asikuvumeli ukuthi unqamule isiguquli ohlelweni ukuze ushintshe umpompi ongalayishi. Ngakho-ke, iziguquli zikampompi ezilayishiwe zithandwa kakhulu kuma-transformer kagesi.
Imibandela emibili kufanele igcwaliseke ngenkathi uthepha:
·Isekhethi yomthwalo kufanele iqine ukuze kugwenywe ukugoqa kanye nokuvikela ukulimala kokuxhumana
·Ngenkathi ulungisa umpompi, ayikho ingxenye yamawindi okufanele ifinyezwe
Kulo mdwebo ongenhla, u-S yi-diverter switch, futhi u-1, 2 no-3 amaswishi esikhethi. Ukushintsha kompompi kusebenzisa i-reactor ethephwe maphakathi R njengoba kukhonjisiwe kumdwebo. I-transformer isebenza lapho ama-switch 1 kanye no-S evaliwe.
Ukuze ushintshele ku-tap 2, inkinobho engu-S kufanele ivulwe futhi inkinobho engu-2 kufanele ivalwe. Ukuze uqedele ukushintsha kompompi, inkinobho engu-1 iyasebenza futhi inkinobho engu-S ivaliwe. Khumbula ukuthi i-diverter switch isebenza ekulayisheni futhi akukho ukugeleza kwamanje kusikhethi esishintshayo ngesikhathi sokushintsha kompompi. Uma uthepha ushintsho, uhhafu kuphela wokusabela okhawulela i-current exhunywe kwisekethe.
2.I-Off-Load/No-load Tap Changer
Kufanele ufake i-off-load changer ku-transformer uma ushintsho oludingekayo ku-voltage lungavamile. Ompompi bangashintshwa ngemuva kokuhlukanisa ngokuphelele i-transformer kumjikelezo. Lolu hlobo lokushintsha ngokuvamile lufakwa ku-transformer yokusabalalisa.
Ukushintsha impompi kungenziwa uma i-transformer isesimweni sokungalayishiwe noma sokungalayishi. Ku-transformer yohlobo olomile, isenzakalo sokupholisa senzeka ikakhulukazi ngomoya wemvelo. Ngokungafani nokushintsha kompompi olayishwayo lapho ukucisha i-arc kunqunyelwe uwoyela lapho i-transformer ilayishwa, ukuthepha ngesiguquli sempompi elayishwayo kuphela lapho i-transformer isesimweni soku-OFF-Switch.
Ivamise ukusetshenziswa ezimeni lapho isilinganiso sokuphenduka singadingi ukushintshwa kakhulu, futhi ukukhipha amandla kuvunyelwe emandleni aphansi kanye nama-voltage aphansi. Kwamanye, ukushintsha kokuthepha kungenziwa nge-rotary noma iswishi yesilayidi. Ingabonakala ikakhulukazi kumaphrojekthi kagesi welanga.
Ama-off-load tap changeers nawo asetshenziswa kuma-voltage aphezulu. Uhlelo lwama-transformer anjalo luhlanganisa isiguquli sempompi esingalayishi ekujikeni okuyinhloko. Lesi siguquli sisiza ukwamukela ukuhluka ngaphakathi kwebhendi encane eduze nesilinganiso esincane. Kumasistimu anjalo, ukushintsha kompompi ngokuvamile kuzokwenziwa kanye kuphela, ngesikhathi sokufakwa. Kodwa-ke, ingabuye ishintshwe ngesikhathi sokucima okuhleliwe ukuze kubhekwane nanoma yiluphi ushintsho lwesikhathi eside kuphrofayili kagesi wesistimu.
Kubalulekile ukuthi ukhethe uhlobo olulungile lokushintsha kokuthepha ngokusekelwe kuzimfuneko zakho.
Isikhathi sokuthumela: Nov-19-2024