Okuqukethwe

Ukubala isilinganiso seKilovolt-Ampere (KVA) yesilinganiso se-transformer esinezigaba ezintathu kubalulekile ukuze kuqinisekiswe ukusebenza kahle nokuphepha ezinhlelweni zikagesi.

transformer

Ukuqonda KVA kuma-Transformers anezigaba ezintathu

Ku-Electrical Engineering, i-Kilovolt-Ampere) imele amandla asobala ekujikelezeni kukagesi, ehlanganisa wonke amandla angempela (kw) namandla asebenzayo (kvar).

Izicelo zabaguquli abathathu

Ama-transformers wesigaba ezintathu asetshenziswa kabanzi emikhakheni ehlukahlukene:

  • Izikhungo zezimboni: Ukunika amandla imishini esindayo nemishini.
  • Izakhiwo Zentengiso: Ukuhlinzeka ngogesi ezakhiweni ezinkulu zasehhovisi nasezindaweni zokuthenga.
  • Ukusatshalaliswa kwamandla: Ukudlulisela ugesi kumabanga amade kuma-grids wamandla.
  • Izinhlelo zamandla avuselelekayo: Amandla ahlanganise umoya namandla elanga kugridi.

Isidingo sabaguquki abasebenza kahle futhi abanamandla aphezulu sebekhuphuke, beqhutshwa ukwanda kwamandla avuselelekayo kanye nokwenziwa kwesimanje kwama-grid kagesi.

Amapharamitha Ezobuchwepheshe nokubalwa

Ifomula yokubala i-KVA

Ifomula ejwayelekile yokubala i-KVA yesigaba sesigaba ezintathu yile:

I-KVA = (√8 × kagesi) / 1000

Lapho:

  • Amandla kagesii-voltage ye-line-to-line kuma-volts (v).
  • -Dlulayoumugqa wamanje kuma-amperes (a).
  • √(cishe ama-1.732) ama-akhawunti we-Travel-Phaset Power Factor.

Ukubalwa Isibonelo

Ake sithi i-transformer idinga ukunikeza umthwalo nge-voltage yomugqa we-400V neyamanje ye-100A:

kva = (1.732 × 400 × 100) / 1000 = 69.28 kva

Kungcono ukuthi ukhethe i-transformer ngesilinganiso esiphakeme kakhulu se-KVA ukuqinisekisa ukuthembeka nokuthola ukwanda okungaba khona.

Ukuhlukanisa ama-transformers amathathu amathathu

Uma kuqhathaniswa nabaguquli besigaba esisodwa, ukunikezwa kwezigaba ezintathu ukunikezwa:

  • Ukusebenza kahle okuphezulu: Kuncishiswe ukulahleka kwamandla ngesikhathi sokudluliselwa.
  • Idizayini ehlanganisiwe: Usayizi omncane wesilinganiso samandla esifanayo.
  • Ukusatshalaliswa komthwalo olinganiselayo: Ngisho nokusatshalaliswa kwamandla ezigabeni.

Lezi zinzuzo zenza abaguquli bezigaba ezintathu belungele izinhlelo zokusebenza zezimboni nezinkulu.

Ukuthenga nokukhetha imihlahlandlela

Lapho ukhetha i-transformer yesigaba ezintathu:

  1. Hlola izidingo zomthwalo: Thola isidingo samandla aphelele eKVA.
  2. Cabanga ukwanda okuzayo: Khetha i-transformer enekhono elengeziwe lokukhula komthwalo ongaba khona.
  3. Hlola izilinganiso ezisebenzayo: Khetha ama-transformers ngokusebenza kahle kwamandla okunciphisa izindleko zokusebenza.
  4. Bheka amazinga wokuhambisana: Qinisekisa ukuthi i-Transformer ihlangana namazinga wezimboni ezifanele kanye nezitifiketi.

Ukubonisana nabakhiqizi abanjengoAbisa,Schneider Electric, nomaNokialunganikeza eminye imihlahlandlela.

Umthandi

Q1: Kungani isici se-√3 isetshenziswa ekubalweni kwe-KVA kwabaguquli abathathu?

A: I-FICACT ACCOR ACCOURCOR YOKUQASHWA KOKUGCINA EKUHLUKATHI KWESigaba Esithathu, Ukuqinisekisa Ukubalwa Okunembile Kwamandla Abonakala.

Q2: Ngingakwazi ukusebenzisa aUmhlahlandlela Wokuguqulangesilinganiso esiphakeme se-KVA kunokudingekayo?

A: Yebo, ukusebenzisa i-transformer ngesilinganiso esiphakeme se-KVA kuhlinzeka ngomugqa wokuphepha futhi kuhlalisa ukwanda kwemithwalo yesikhathi esizayo.

Q3: Ngabe isici samandla sithinta kanjani i-transformer siling?

A: Isici samandla esiphansi sibonisa amandla atholakalayo okusebenzayo, edinga i-transformer enesilinganiso esiphakeme se-KVA ukuphatha umthwalo ofanayo wamandla wangempela.

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