Canwin waa shirkad koronto-dhaliyaha ah oo xirfad leh & Soo-saare koronto-dhaliyaha
Luqadda
Canwin waa shirkad koronto-dhaliyaha ah oo xirfad leh & Soo-saare koronto-dhaliyaha
Su'aal:
"Waxa jira Transformer duug ah oo 1000KVA ah oo hadda jira 200kW, haddii rar cusub oo qiyaastii 600KW lagu kordhinayo, ma u adkeysan karaa transformerkan?"
Su'aashani waxay marka hore ku lug leedahay fikrad, taas oo ah, xiriirka iyo farqiga u dhexeeya KVA iyo KW.
KVA (kilovolt-ampere) waa unug awood muuqata ah, KW (kilowatt) waa unug awood firfircoon leh. Marka laga soo tago awoodda muuqata iyo awoodda firfircoon, waxaa jira awood falcelin ah, iyo unugga awoodda falcelinta waa Kvar (kilovar).
Waa maxay faraqa u dhexeeya awoodda firfircoon, awoodda falcelinta, iyo awoodda muuqata?
Awoodda firfircooni waa awoodda dhabta ah ee ay isticmaalaan qalabka korantada, taas oo ah, tamarta korontada ayaa loo beddelaa noocyo kale oo tamar ah.
Tusaale ahaan, biilasha korontada ee maalinlaha ah ee qof kastaa bixiyo waa koronto firfircoon;
Korontada falcelinta waxay ka dhigan tahay in aaladaha qaar aysan dhab ahaan u isticmaalin koronto, kaliya waa qeybta tamarta si ku meel gaar ah u keydisa korontada.
Tusaale ahaan, haddii uu jiro capacitor/gariirad ku jirta qalabka korontada, marka uu qalabku shaqaynayo, capacitor/coil wuxuu had iyo jeer ku jirayaa xaalad dallad iyo dareere ah. Sababtoo ah capacitor/ gariiradda ayaa la dallacay oo la sii daayay, runtii ma isticmaasho koronto, sidaas darteed qaybtan ka mid ah tamarta waxaa loo yaqaannaa tamarta falcelinta.
Awoodda muuqata waxaa loola jeedaa wadarta guud ee korontadu ay bixiso.
Marka laga soo tago bixinta tamarta firfircoon ee qalabka korontada, sahayda korontadu (guud ahaan waxaa loola jeedaa transformer ama koronto-dhaliye) sidoo kale waxay u baahan tahay inay bixiso awood falcelineed. Sababtu waa mid aad u fudud. Inkasta oo capacitor ee qalabka korantada uusan isticmaalin koronto, had iyo jeer waa dallacaadda iyo soo dajinta, sidaas darteed waxay sidoo kale u baahan tahay inay qabsato qayb ka mid ah awoodda korontada.
Ka dib markaan caddeeyo kuwan, aynu eegno xiriirka ka dhexeeya, kaas oo ka hadli doona fikrad kale - factor power. Intee in le'eg bay koronto firfircoon bixin kartaa waxay kuxirantahay qodobka korontada.
【Qalabka Awooda】
Qodob awoodeed waxa loola jeedaa saamiga awoodda firfircoon iyo awoodda muuqata, guud ahaan loo muujiyey sida cosφ.
Tusaale ahaan, 1000KVA transformer-ku waxa uu soo saari karaa 600KW oo awood firfircoon ah marka qodobka korantada cosφ=0.6; laakiin marka qodobka korantada cosφ=0.9, waxa uu soo saari karaa 900KW oo awood firfircoon ah.
Haddii 1 kWh oo koronto ah uu yahay 1 yuan, marka awoodda korontadu ay tahay 0.6, transformer-ku wuxuu dhalin karaa faa'iidooyin dhaqaale 600 yuan / saac; marka awoodda korontadu ay gaarto 0.9, Transformer-ku wuxuu dhalin karaa 900 yuan / saac oo faa'iidooyin dhaqaale ah. Dhab ahaantii, doorka bixinta awoodda ayaa aad uga badan tan fudud, waxaa jira kuwo kale oo badan, markaa kama hadli doono halkan.
【Falanqaynta mawduucan】
Aasaaska kore, way fududahay in la sharaxo mawduucan.
Halbeegga awoodda korontadu waa KVA (kilovolt-ampere), unugga korantada ee qalabka korontada waa KW (kilowatt). Kaliya marka qodobka korantadu uu yahay 1, wax soo saarka korantada ee 1000KW ayaa si buuxda loo rari karaa, laakiin asal ahaan waa wax aan macquul aheyn codsiyada la taaban karo.
Marka la naqshadeynayo, waxaa lagama maarmaan ah in laga tago xad gaar ah, taas oo guud ahaan loo xisaabiyo iyadoo loo eegayo heerka u hoggaansanaanta 90%, taas oo ka dhaqaale badan oo macquul ah, taas oo ah, 1000 × 0.9=900KVA. Haddii aan u magdhabano awoodda 0.95 iyo wixii ka sareeya iyada oo loo marayo magdhowga korantada, markaa transformerku wuxuu soo saari karaa 900 × 0.95 = 855KW awood firfircoon.
Fiiro gaar ah: Shirkadda korontadu waxay u baahan tahay in qodobka korontadu uu ka sarreeyo 0.9, haddii kale waxaa jiri doona ganaaxyo; laakiin qodobka korantadu kama dhaafi karo 1, haddii kale korantada nidaamka ayaa kordhi doonta oo saameyn doonta hawlgalka caadiga ah ee nidaamka.
Ciwaanka ayaa sheegaya in Transformer-ka 1000KVA uu markii hore siinayay koronto qalab koronto ah oo dhan 200KW, haatanna lagu daray qalab koronto oo dhan 600KW. Wadarta guud ee awoodda firfircoon ee qalabka korontada ayaa gaartay 800KW, taas oo aan weli dhaafin qiimaha la xisaabiyay.
Sidaa darteed, Transformer-ka 1000KVA wuxuu markii hore siinayay awoodda qalabka korantada ee 200KW, waxaana hadda lagu daray 600KW qalabka korontada. Ilaa iyo inta aan ku kordhin karno qodobka awoodda qiimaha loo baahan yahay, transformer-ku wuxuu u shaqeyn karaa si badbaado leh muddo dheer.
