Koronto dhaliyaha naaftada cadaadiska hooseeya ayaa dejinaya qorshaha isbeddelka ee kor u kaca cadaadiska sare

Soo koobid: Qalabka koronto-dhaliyaha hooseeya ayaa hadda ah doorashada isha korantada ee degdegga ah ee isticmaaleyaasha intooda badan, qaabkanina wuxuu inta badan tixraacaa dab-dhaliyeyaasha 230V/400V ee naaftada ah ee sida caadiga ah loo isticmaalo suuqa.Si kastaba ha ahaatee, meelaha qaarkood, masaafada u dhaxaysa qolka naaftada iyo tas-hiilaadka korontada awgeed, waxaa laga yaabaa inay dhacaan hoos u dhac ku yimaada korontada, taas oo keenta in la awoodi waayo isticmaalka korontada si caadi ah, iyo xaaladaha daran, xitaa gubanaya qalabka korontada.Sidaa darteed, dadka isticmaala kuwaas oo horey u soo iibsaday qalabka korontada ku shaqeeya ee naaftada ah, qaadashada tallaabooyin lagu hagaajinayo cadaadiska hoose ilaa cadaadiska sare ayaa noqda ikhtiyaarka ugu fiican, si aan loo xoqin qalabka asalka ah ee cadaadiska hooseeya oo uu keeno khasaare dhaqaale oo weyn.

1. Isbarbardhigga faa'iidooyinka iyo khasaaraha cadaadiska sare iyo hoose

1. Faa'iidooyinka qalabka koronto-dhaliyaha sare:

(1) Awoodda koronto-dhaliyaha waa la kordhin karaa, iyo awoodda ugu badan ee qalabka koronto-dhaliyaha sare waxay gaari kartaa dhowr kun, ama xitaa tobanaan kun oo kilowatts.Tani waa sababta oo ah, marka la soo saaro awood isku mid ah, hadda ee koronto-dhaliyaha sare wuxuu noqon karaa mid aad u yar marka loo eego koronto-dhaliyaha hoose.Markaa dabaylaha koronto-dhaliyaha sare wuxuu isticmaali karaa dhexroor silig yar.Natiijo ahaan, luminta naxaasta stator ee koronto-dhaliyeyaasha-sare ayaa sidoo kale ka yaraan doona kuwa koronto-dhaliyeyaasha hooseeya.Wixii koronto-dhaliyeyaasha sare ah, marka la isticmaalayo koronto yar-yar, booska stator weyn ayaa loo baahan yahay sababtoo ah baahida fiilooyinka qaro weyn, taasoo keentay in dhexroor weyn oo ah xudunta stator iyo mugga weyn ee koronto-dhaliyaha oo dhan;

(2) Koronto-dhaliyeyaasha awoodda waaweyn, koronto-dhaliyeyaasha-sare waxay isticmaalaan awood yar iyo qalab qaybinta marka loo eego koronto-dhaliyeyaasha hooseeya, waxayna leeyihiin khasaare hoose, taas oo badbaadin karta xaddi xaddidan oo isticmaalka korontada ah.Gaar ahaan koronto-dhaliyeyaasha sare ee 10KV, waxay si toos ah u isticmaali karaan sahayda korantada, taas oo yareyn doonta maalgashiga qalabka korontada, fududeynaya isticmaalka, iyo yareynta heerka guuldarada.

2. Khasaaraha ka dhalanaya koronto-dhaliyaha sare

(1) Qiimaha dabaysha koronto-dhaliyaha ayaa ah mid aad u sarreeya, qiimaha qalabka dahaadhka ee la xidhiidha ayaa sidoo kale kordhin doona si waafaqsan;

(2) Shuruudaha loo baahan yahay deegaanka isticmaalka matoorada ayaa aad uga sarreeya kuwa koronto-dhaliyeyaasha hooseeya;

2. Habka kobcinta ee qalab-dhaliye

Meelaha u baahan sahay koronto-sare ah, marka lagu daro in loo qoondeeyay qalab-dhaliye-sare, waxa kale oo la isticmaali karaa koronto dhaliyaha caadiga ah ee kor u qaadaya.

1. Faa'iidooyinka Korantada Yar ee Qorshaha Korantada Sare

(1) Waxaa jira laba ama in ka badan oo looga baahan yahay danab kala duwan goobta dhismaha, ama wax soo saarka danab ee set koronto ayaa u baahan in la beddelo;

(2) (Isolation transformation go'doomin function) Dhamaadka-voltage-sare waa transformer xagal, iyo saddex-waji ee nidaamka silig saddexda ma laha khad eber ah.Xadhig eber la'aanteed, ma jiro xariiqda wareejinta eber;Go'doomi harmonics-ka ay dhaliyaan culeysyada aan tooska ahayn ee dhinaca korantada sare ee dhinaca korantada hoose, samaynta dhinaca hoose ee korantada oo nadiif ah oo aan saameyn ku yeelanayn hawlgalka xakamaynta korantada tooska ah (AVR) ee gudaha qalabka korontada, iyo sidoo kale xalinta dhibaatooyin kala duwan oo ay sababto wareejinta khadka eber;

(3) Shaqada kaydinta Inertia ee weyn ayaa si gaar ah waxtar u leh bilaabista matoorada waaweyn.Transformers-yada awoodda waaweyni waxa ay ka kooban yihiin tiro badan oo ah maaddada naxaasta ah, iyo xudunta weyn ee birlabku waxa ay ka ciyaartaa kaalin wax-is-dejineed, taas oo yaraynaysa saamaynta koronto-dhaliyaha iyo hagaajinta hoos u dhaca danab ee degdegga ah.

2. Faa'iido darrada Qorshaha Isku-xidhka Isbarbar-dhigga ee Unugyada Korontada Hoose

Qalabka koronto-dhaliyaha ee 380-415Vac, haddii qalab-dhaliyeyaal badan ay ku xiran yihiin isbarbar ahaan dhinaca korantada hoose ka dibna lagu xoojiyay koronto-bixiye kor u kaca;Xadka sare ee lagu taliyey waa 7500 kVA, 6000 kW.Marka la dhaafo xadka sare, arrimaha soo socda waa in la tixgeliyaa:-

Awoodda baska dhinaca korantada-hooseeya waa inay ahaataa mid u dhow 10kA, iyada oo la tixgelinayo awoodda baska ee u adkeysiga qulqulka cilladaha iyo daaweynta kulaylka gudaha gudaha koronto-yaraanta (kor u kaca heerkulka shaashadda beddelka hooseeya);

• Awoodda jabsiga shilalka korantada yar (ilaa u adkeysanaya qulqulka cilladaha), sida ilaa 65kA iyo 100kA;

Waa lagama maarmaan in la xisaabiyo haddii rakibidda ku dhawaad ​​​​10000 fiilooyinka ampere, furayaasha korantada yar, iyo kharashka dhinaca korantada yar ay yihiin kuwo macquul ah;

3. Kiiska dib u cusboonaysiinta

1. Halabuurka qalabka iyo cabbirada

Isticmaale: Mashruuc ku yaal Macau

● Korantada soo kabashada: UPS+6000kVA koronto dhaliye

Wadarta awoodda degdegga ah: 4500kVA, 3600kW

Habka korantada: danab sare 11kV, 50Hz iyo danab hoose 415 Vac50Hz

Awoodda: 4 KTA50-GS8 moodooyinka / 1200kW qalab-dhaliye

Qalabaynta dab-dhaliye: 3 weyn iyo 1 kayd ah, oo 1 loo hayo dayactirka.Dab-dhaliye kasta waxa lagu xidhi karaa shabagga korantada si loo isticmaalo

Koronto-dhaliyaha go'an: 415Vac/saddex-waji/50 wareegyo

● Shaashadda koronto-dhaliyaha hoose ee qalabka korontada

5000A baska/80kA1 sekan/saddex waji afar silig/50 wareeg

Basbarka 5000A waxa loo qaybiyaa qaybo A iyo B

Qaybta A ee baska waxay ku xidhan tahay laba dab-dhaliye, mid iyo laba

Qaybta B ee baska waxay ku xidhan tahay laba dab-dhaliye, 3 iyo 4

Rakibaadda 5000A4 ee isku xidhka tiirka ee qaybaha baska A iyo B

○ 4 × 2500A hawada beddelka → ku xiran 4 qalab koronto-dhaliye

3 × 3200A hawada wareegta → ku xiran 3 transformers kor u qaada (dhinaca korantada hoose)

● Transformers-kor u kaca: 3 qaybood oo ah 2000kVA11kV/0.415kV

● Shaashadda beddelka tamarta sare ee koronto: vacuum switch, 15kV600A → ku xiran 3 transformers-up-up (dhinaca tamarta sare)

2. Falanqaynta qorshaynta

(1) Afar unug koronto-dhaliyaha P1500 ayaa ku xiran shabagga si loogu isticmaalo, iyadoo la adeegsanayo 3+1 unug koronto oo isbarbar socda.Iyadoo aan loo eegin unugga u baahan dayactirka, ma saameynayso korontada degdegga ah;

(2) Haddii ay dhacdo koronto go'an, afar koronto-dhaliye ayaa isku mar bilaabi doona waxayna isku xiri doonaan afar 2500A koronto yar iyo saddex 200A hoose ee danabka hoose ee dhinaca korantada, magnetizing transformer-ka kor u qaadista iyo xiritaanka saddex 600A sare -dabaysha korantada si ay korontadu u siiso gobolo kala duwan;

(3) Qayb kasta uma baahna ATS shaashadaha beddelka tooska ah ama qolal koronto-dhaliyaha ah oo madax-bannaan, kaydinta kharash badan iyo kheyraadka dhulka ee qiimaha leh;Si aan toos ahayn u xalli dhibaatooyinka kaydinta walxaha guban kara, qiiqa qiiqa, iyo buuqa ka dhashay qolka koronto-dhaliyaha;

(4) Tijaabada maalinlaha ah ee qalabka koronto-dhaliyaha, amar bilow ah ayaa la soo saaray hal ama in ka badan oo loo qoondeeyay koronto dhaliyaha iyadoo la moodayo cilladda guud, laakiin afar 2500A dab-damis yar-yar iyo saddex 3200A dab-damis hooseeya ma xidhna;Saddex 6000A-dareemaha korantada-sare waxay heleen barnaamijka tijaabada waxayna si shuruudaysan u kansaleen isku-xidhka si loo xiro.Basbarka 5000A waa la shiday, koronto-dhaliye kastana waxa uu la mid yahay baska.Ka dib kormeerka isku-dubbaridka, 2500A beddelka korantada hoose waa la xidhay;Ka dib marka la xiro, qalabka dhaliyaha waxa uu maraa tijaabo buuxa oo culeys ah.Ka dib marka imtixaanka la dhammeeyo, qalabka koronto-dhaliyuhu wuxuu marka hore ka saarayaa cadaadiska taban iyo safarrada si loo dhamaystiro imtixaanka (safarka ugu horreeya ee 2500A -3200A -4-voltage switch -600A -600A high-voltage switch);

(5) Marka uu xafiiska korontadu ku dhawaaqo baahida koronto la'aanta, qalabka korontada ayaa si gacanta ah looga goyn karaa korontada ka dib marka lagu shubo (4), si ay u shidto qalabka korontada;Ilaa inta korontada dhexe dib loo soo celinayo, dab-dhaliyehu waxa uu la mid yahay tamarta dhexda ee culayska saaran.Isku xirka shabakada ka dib, qalabka koronto-dhaliyaha waa la saaraa oo laga baxaa, isticmaaluhuna ma dareemo saameynta ku meel gaadhka ah ee go'itaanka korantada ama wareejinta habka oo dhan;

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