Transformers tuaj yeem ua qhov nruab nrab voltage them nyiaj thiab kev tswj tus kheej voltage los ntawm tapping. Rau qhov loj thiab tseem ceeb transformers, ntawm load voltage tswj yuav siv tau. Rau me me transformers los yog auxiliary transformers, tsis muaj -load voltage tswj yuav siv tau.
Piv txwv li, piv txwv li lub network system voltage ntawm lub transformer poob los ntawm 132kV mus rau 33kV. Thaum lub kaw lus load tsis txaus, qhov voltage ntawm 132kV system tuaj yeem nce 10%. Txhawm rau muab qhov ntsuas hluav taws xob ntawm 33kV mus rau qhov qis -voltage sab, nws yuav tsum muaj qhov siab -voltage winding muaj +10% kais. Thaum lub kaw lus load nce thiab 132kV qhov system voltage poob mus rau tus nqi ntsuas, nws xav tias qhov qis -voltage sab voltage yuav tsum siab tshaj 33kV kom tau raws li qhov xav tau ntawm 33kV system thiab kev tswj hluav taws xob sab hauv ntawm lub transformer. Txhawm rau kom ntseeg tau tias qhov nce ntawm 10% ntawm qhov siab - qhov hluav taws xob sab thiab tso cai rau 5% qhov hluav taws xob tswj tus nqi hauv qhov hloov pauv, nws yuav tsum muaj qhov siab -voltage winding muaj kais ntawm kwv yees li -13%. Nyob rau hauv txoj kev no, qhov voltage ib tig ntawm lub transformer yog kwv yees li 1.15, thiab rau ib tug 33kV system, qhov voltage yuav tsum tau nce los ntawm 15%.
Nws yog ib qho tseem ceeb kom paub qhov txawv ntawm ob qhov xwm txheej uas tau hais los saum no. Hauv cov ntaub ntawv qub, siab -voltage tap changer yog siv los ua kom qhov voltage ntawm txhua qhov tig tsis tu ncua thaum lub kaw lus voltage hloov. Nyob rau hauv rooj plaub tom kawg, siab -voltage kais hloov pauv yog siv los ua kom qhov hluav taws xob ntawm txhua qhov tig txhawm rau txhawm rau ua kom cov zis hluav taws xob ntawm qhov hloov pauv ntawm qhov ntsuas voltage; Nyob rau hauv lub qub rooj plaub, lub transformer high voltage kais yog xam tau tias yog siv rau high voltage hloov dua siab tshiab, thaum nyob rau hauv lub xeem rooj plaub, lub transformer high voltage kais yog xam tau tias yog siv rau low voltage conversion. Qhov sib txawv nruab nrab ntawm ob yog qhov qub hloov pauv raws li qhov sib nqus flux ntom ntom, thaum lub sijhawm kawg hloov pauv raws li qhov hloov pauv sib nqus flux ntom ntom.
Tshwj tsis yog nyob rau hauv cov xwm txheej tshwj xeeb, transformers yeej ib txwm tsim los ua haujlwm ntawm qhov sib nqus flux ntom ntom. When the rated magnetic flux density is constant, certain limits are determined based on the actual possible changes. Qhov loj ntawm qhov txwv yog nyob ntawm daim ntawv thov tiag tiag.
