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CANWIN — Injineernimada Xudunta Awoodda. Dhisidda Waxa Xiga.

Immisa ayuu transformer-ku 1000KVA u adkaysan karaa isticmaalka korontada KW?

Su'aashani marka hore waxay ku lug leedahay fikrad, taas oo ah, xiriirka iyo farqiga u dhexeeya KVA iyo KW.

KVA (kilovolt-ampere) waa cutub awood muuqata leh, KW (kilowatt) waa cutub awood firfircoon leh. Marka laga soo tago awoodda muuqata iyo awoodda firfircoon, waxaa jira awood falgal ah, cutubka awoodda falgal ahna waa Kvar (kilovar).

Waa maxay faraqa u dhexeeya awoodda firfircoon, awoodda falgalka, iyo awoodda muuqata?

Awoodda firfircooni waa awoodda ay isticmaalaan qalabka korontada, taas oo ah, tamarta korontada loo beddelo noocyo kale oo tamar ah.

Tusaale ahaan, biilasha korontada maalinlaha ah ee qof walba bixiyo waa koronto firfircoon;

Awoodda fal-celinta waxay ka dhigan tahay in aaladaha qaar aysan runtii isticmaalin koronto, waa qaybta korontada ee si ku meel gaar ah u kaydisa korontada.

Tusaale ahaan, haddii qalab koronto ku jiro, marka qalabku shaqeynayo, kaabsoolaha/gariirku had iyo jeer wuxuu ku jiri doonaa xaalad dallacsiin ah oo uu sii deynayo. Maadaama kaabsoolaha/gariirku la dallacay oo la sii daayay, runtii ma isticmaalo koronto, sidaa darteed qaybtan awoodda waxaa loo yaqaan awoodda falgalka.

Awoodda muuqata waxay tilmaamaysaa awoodda guud ee ay bixiso korontada.

Marka laga soo tago bixinta awood firfircoon qalabka korontada, korontada (guud ahaan waxay tilmaamaysaa transformer ama matoor) waxay sidoo kale u baahan tahay inay bixiso awood falgal ah. Sababtu waa mid aad u fudud. Inkasta oo capacitor-ka qalabka korontada ku jira uusan isticmaalin koronto, haddana had iyo jeer waa dallacayaa oo sii deynayaa, sidaas darteed waxay sidoo kale u baahan tahay inay qabsato qayb ka mid ah awoodda korontada.

Ka dib markaan caddayno kuwan, aan eegno xiriirka ka dhexeeya, kaas oo ka hadli doona fikrad kale - qodobka awoodda. Inta ay le'eg tahay awoodda firfircoon ee korontada ay bixin karto waxay ku xiran tahay qodobka awoodda.

【Qaybta Awoodda】

Immisa ayuu transformer-ku 1000KVA u adkaysan karaa isticmaalka korontada KW? 1

Qodobka awoodda waxaa loola jeedaa saamiga awoodda firfircoon iyo awoodda muuqata, oo guud ahaan loo muujiyo cosφ.

Immisa ayuu transformer-ku 1000KVA u adkaysan karaa isticmaalka korontada KW? 2

Tusaale ahaan, transformer-ka 1000KVA wuxuu soo saari karaa 600KW oo awood firfircoon marka factor-ka awoodda cosφ=0.6; laakiin marka factor-ka awoodda cosφ=0.9, wuxuu soo saari karaa 900KW oo awood firfircoon.

Haddii 1 kWh oo koronto ah uu yahay 1 yuan, marka qodobka korontadu yahay 0.6, qalabka korontadu wuxuu soo saari karaa faa'iidooyin dhaqaale oo ah 600 yuan/saacaddii; marka qodobka korontadu gaaro 0.9, qalabka korontadu wuxuu soo saari karaa 900 yuan/saacaddii faa'iidooyin dhaqaale. Xaqiiqdii, doorka bixinta qalabka korontadu aad ayuu uga badan yahay kan fudud, waxaa jira kuwo badan oo kale, marka halkan kama hadli doono.

Immisa ayuu transformer-ku 1000KVA u adkaysan karaa isticmaalka korontada KW? 3

【Falanqaynta mowduucan】

Iyada oo la adeegsanayo aasaaska kor ku xusan, way fududahay in la sharaxo mowduucan.

Cutubka awoodda ee qalabka korontadu waa KVA (kilovolt-ampere), cutubka korontada ee qalabka korontadu waa KW (kilowatt). Kaliya marka qodobka korontadu yahay 1, ayaa korontada 1000KW si buuxda loo rari karaa, laakiin asal ahaan waa wax aan macquul ahayn codsiyada wax ku oolka ah.

Marka la naqshadeynayo, waxaa lagama maarmaan ah in laga tago faa'iido gaar ah, taas oo guud ahaan lagu xisaabiyo heerka u hoggaansanaanta 90%, taas oo ah mid dhaqaale ahaan iyo macquul ah, taas oo ah, 1000×0.9=900KVA. Haddii aan ku magdhabno awoodda korontada 0.95 iyo wixii ka sarreeya iyada oo loo marayo magdhowga korontada, markaa transformer-ku wuxuu soo saari karaa awood firfircoon oo ah 900×0.95=855KW.

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 korontadu ma dhaafi karo 1, haddii kale danabka nidaamku wuu kordhi doonaa wuxuuna saameyn doonaa shaqada caadiga ah ee nidaamka.

Cinwaanku wuxuu sheegayaa in transformer-ka 1000KVA uu asal ahaan koronto siiyay qalabka korontada ee 200KW, haddana qalab koronto oo 600KW ah ayaa lagu daray. Awoodda guud ee firfircoon ee qalabka korontada ayaa gaartay 800KW, taasoo aan weli dhaafin qiimaha la xisaabiyay.

Sidaa darteed, qalabka korontada ee 1000KVA wuxuu markii hore koronto siiyay qalabka korontada ee 200KW, haddana qalabka korontada ee 600KW ayaa lagu daray. Ilaa iyo inta aan kordhin karno awoodda korontada qiimaha loo baahan yahay, qalabka korontada ee 1000KVA wuxuu si badbaado leh u shaqayn karaa muddo dheer.

fakasho
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