Lub Hwj Chim Tom Qab Daim phiaj: Phau Ntawv Qhia Txog Peb -Theem Transformers
Peb -theem transformer tiag tiag yog lub caj qaum ntawm cov kab hluav taws xob niaj hnub no. Nws txav hluav taws xob hluav taws xob ntawm cov hluav taws xob hluav taws xob siv hluav taws xob induction, thiab nws ua li ntawd nrog peb AC tam sim no uas nyob twj ywm zoo kawg nkaus hauv sync - txhua qhov hloov los ntawm 120℃los ntawm lwm tus. Hauv cov ntsiab lus yooj yim: piv nrog ib zaug -theem teeb tsa, peb-theem fais fab feem ntau ua haujlwm tau zoo dua thiab muab cov khoom siv hluav taws xob thiab kev lag luam loj rau kev ruaj ntseg lawv xav tau.
(Nyem daim duab kom paub ntxiv.)
Core Construction (Yuav ua li cas nws tsim)
Feem ntau peb -theem transformers poob rau hauv ob peb hom qauv:
Core- hom
Qhov no muaj peb ceg ntsug ntsug, tag nrho khi ua ke los ntawm sab saum toj thiab hauv qab yokes. Nws yog nrov, tshwj xeeb tshaj yog rau siab -voltage kis tau tus mob, vim hais tias nws yog compact thiab siv tau.
Plhaub -type
Ntawm no, lub magnetic core yeej wraps nyob ib ncig ntawm lub
windings. Tus qauv tsim no paub txog muab kev tiv thaiv kev siv tshuab muaj zog, uas tuaj yeem yog qhov loj hauv -cov xwm txheej hauv ntiaj teb.
Peb -theem bank
Hloov ntawm ib qho loj peb -phase unit, koj yuav pom peb cais ib zaug -theem transformers ua ke. Ib qho txias (thiab qee zaum tseem ceeb) kom zoo dua yog tias ib chav ua tsis tiav, ob qho tib si yuav ua haujlwm ntawm qhov muaj peev xwm txo tau - qhov no feem ntau hu ua qhov qhib -delta teeb.
Winding Connections (Qhov "wiring style" tseem ceeb)
Yuav ua li cas cov windings txuas nrog muaj ntau yam ua nrog yuav ua li cas lub transformer behaves nyob rau hauv ib
zog system:
Delta (△)
Hauv kev sib txuas delta, cov windings tsim ib lub voj kaw. Delta yog tawv thiab ua haujlwm siab tam sim no zoo. Nws tseem tuaj yeem pab "muaj" qee qhov teeb meem sib haum xeeb zoo dua li qee qhov kev xaiv.
Hnub qub (Y)
Nrog lub hnub qub (los yog wye) kev sib txuas, cov windings ntsib ntawm ib qho chaw nruab nrab. Qhov ntawd yog ib feem uas tso cai rau koj ua hauv av thiab muab cov xaim nruab nrab, uas yog qhov tshwj xeeb tshaj yog rau kev pub noj ntau -theem loads-zoo li qhov koj xav pom hauv cov tsev nyob.
Common Standard Connection Combinations:
Yd 11: High-voltage star, low-voltage delta; low voltage lags high voltage los ntawm 30 degree. Ib yam rau cov kauj ruam -down transformers, zoo li 110kV / 10kV systems.
Yyn 0: Ob sab hnub qub, qis -voltage nruab nrab hauv av. Qhov mus- mus rau kev faib khoom transformers (10kV/0.4kV, 380/220V).
Dyn 11: High-voltage delta, low-voltage star with grounded neutral. Nrov nyob rau hauv nroog daim phiaj vim nws tames harmonics tiag tiag.
Yy0: Lub hnub qub ntawm ob sab, nruab nrab feem ntau ungrounded. Feem ntau yog rau me me, qis - fais fab transformers.
Vim li cas ib qho peb -theem transformer tsis yog peb ib leeg?
Koj tuaj yeem siv peb zaug ib zaug xwb -theem transformers, tab sis feem ntau ntawm cov engineers tsis ua -vim nws feem ntau tsuas yog hassle ntau thiab nqi. Peb -theem transformer feem ntau yeej rau ob peb yam:
Kev ua tau zoo: Nws siv tsawg dua tooj liab thiab hlau tag nrho, yog li lub zog poob yuav qis dua.
Me hneev taw: Tsawg qhov chaw, tsis yooj yim installation, yooj yim logistics (tshwj xeeb tshaj yog thaum koj nyob nraum nrog cov nqi hluav taws xob).
Nqi: Feem ntau, nws xaus li ntawm 15-20% pheej yig dua li peb cais transformers nrog tib lub peev xwm ua ke. Tsis yog qhov sib txawv me me, ua siab ncaj.
Kev Tiv Thaiv & Txias (Ua kom nws ciaj sia)
Lub tshuab hluav taws xob hloov hluav taws xob tau tsim los tswj cov khoom hnyav, tab sis lawv tseem xav tau kev tiv thaiv -vim kev ua txhaum sab hauv tuaj yeem ua phem sai. Cov kev tiv thaiv thiab kev ua kom txias muaj xws li:
Insulating roj: Cov khoom no ua ob lub luag haujlwm. Nws cools lub transformer thiab kuj ua raws li ib tug hluav taws xob insulator (yog li ntawd lub system nyob ruaj ntseg).
Buchholz relay: Cov cuab yeej kev nyab xeeb uas saib xyuas cov roj av los yog cov roj surges, uas tuaj yeem tshwm sim thaum muaj ib yam dab tsi mus rau hauv.
Radiators thiab/los yog kiv cua: Thaum lub transformer ua hauj lwm nyuaj, cua sov ramps sai sai. Cov no pab pov tseg qhov cua sov kom lub tsev nyob ntev dua.
