Isku mid ah iyo faraqa u dhexeeya Qaybta Weyn ee Ring iyo Birta ee codsiga

Cutubka Main ee Giraanta waxaa loo isticmaalaa korontada shabakadda giraanta si loogu xiro laba ilo koronto ama qaybo ka mid ah golaha badalka. Shaqada ugu weyn waa in la kala qaybiyo labada qaybood, iyadoo leh hal shaqo iyo cabbir yar. Golaha dhexe waa nooc ka mid ah golaha badalka oo ay isticmaalaan dadka isticmaala dhammaadka, oo leh hawlo buuxa iyo mug weyn. Waxaa jira noocyo badan oo ka mid ah golaha dhexe, kuwaas oo loo qaybin karo kabadhada badalka ee soo galaya iyo kuwa baxaya, kabadhada cabbiraadda, kabadhada badalka, iyo kabadhada badalka ee la isticmaalay. Badhannada ku jira golaha dhexe waxaa lagu qalabayn karaa qalab ilaalin oo otomaatig ah. Haddii shil dhaco, qalabka ilaalinta wuxuu soo diraa calaamad si loo sameeyo badhanka. Hawlgalku wuu socdaa oo wuxuu jaraa korontada. Inta badan jebinta wareegga faakuumka VS1 waxaa loo isticmaalaa golaha. Sababo la xiriira isticmaallo kala duwan, qaab-dhismeedka iyo xulashada qaybaha labada aad bay u kala duwan yihiin.

Nidaamka korontada iyo qaybinta, waa in mudnaanta la siiyaa cabbiraadda sahayda sare halkii laga eegi lahaa cabbiraadda danab-yar; cabbiraadda danab-yar waxaa la tixgelin karaa oo keliya marka aysan jirin hab lagu rakibo cabbiraadda dhinaca danab-yar; waqtigan, golaha cabbiraadda danab-yar waa in la dhigaa dhinaca "hore". , Taasi waa, hore ee khadka soo galaya danab-yar iyo dhabarka qalabka, laakiin golaha cabbiraadda ma hoos imaan karo ilaalinta golaha soo galaya danab-yar, sidaa darteed xaaladaha caadiga ah, waa inay ku jirtaa ilaalinta badhanka danab-yar ee qalabka. Xaaladdan oo kale, golaha shabakadda giraanta iyo golaha dhexe waa la isticmaali karaa.

Waqtigan xaadirka ah, Qaybta Main ee Ring-ka laguma rakibi karo oo keliya qalabka korontada ee isku dhafan ee lagu beddelo rar-fiyuuska, laakiin sidoo kale jebinta wareegga, sida XGN-ka gudaha, Schneider's SM6, Siemens 8DJH, ABB's SAFE, iwm., ilaalinta labaadna waxaa lagu qalabayn karaa qalab ilaalin microcomputer ah. Si kastaba ha ahaatee, jabka wareegga ee lagu rakibay qaybta ugu weyn ee giraanta wuxuu leeyahay xad culays ah, xadka qaybta ugu weyn ee giraanta ee soo saaraha kasta way kala duwan yihiin. Sida Qaybta Main ee Ring Schneider RM6, ilaalinta badhanka danab-sare ee transformer-ka ayaa ka weyn ama la mid ah 2000KVA, waana in la isticmaalaa jabka wareegga + ilaalinta microcomputer-ka VIP300. Culayska saaran khadadka soo galaya iyo kuwa baxaya ee golaha dhexe lama xaddido.

Dabcan, iyadoo la horumarinayo tignoolajiyada korontada ee hadda jirta, labada nooc ee armaajooyinka ayaa si weyn u horumaray. Armaajooyinka dhexe ayaa sii yaraanaya oo sii yaraanaya; Armaajooyinka Ring Main ayaa sii kordhaya oo shaqeynaya; laakiin guud ahaan, armaajooyinka dhexe ayaa loo isticmaalaa Isticmaalaha ugu dambeeya waa qalabka xakamaynta, laakiin qiimahoodu waa mid aad u sarreeya; armaajooyinka shabakadda giraanta waxaa asal ahaan loogu talagalay inay xalliyaan dhibaatada sahayda korontada iyo soo bandhigidda, shaqadooduna waa mid fudud, laakiin qaab-dhismeedkeedu waa mid fudud, mugga waa yar yahay, qiimuhuna waa mid hooseeya. Dhawaan, shaqooyinka si joogto ah ayaa loo ballaariyay, gaar ahaan cabbirkiisa yar ayaa si fudud loogu rakibi karaa gudaha "beddelka sanduuqa", sidaa darteed wuxuu leeyahay horumar aad u wanaagsan; hadda Armaajooyinka Ring Main looma isticmaalo oo keliya sidii armaajooyinka badhanka xiriirka, laakiin sidoo kale waxaa loo isticmaali karaa sida wareegga wareegga iyo wareegga wareegga Armaajooyinka, armaajooyinka cabbiraadda, armaajooyinka PT.
Sidaa darteed, si gaar ah marka laga hadlayo, in labada la isweydaarsan karo, sababtoo ah iswaafaqla'aanta shaqooyinka iyo waxqabadka alaabada soosaarayaasha kala duwan, ma fududa in la sheego. Marka laga hadlayo dhimista kharashka, golaha shabakadda giraanta wuxuu leeyahay faa'iidooyin gaar ah. Iyadoo la horumarinayo tignoolajiyada cutubka giraanta ugu weyn, codsiga cutubka giraanta ugu weyn iyo golaha dhexe ayaa isku dul fuuli kara marar badan. Laakiin nidaamka qaybinta korontada ee danab sare leh oo leh hirar waaweyn oo ka sarreeya 1250A, golaha weyn ee giraanta ma beddeli karo golaha dhexe.