PTfeem ntau hu ua voltage transformer nyob rau hauv lub hwj chim kev lag luam thiab CT yog lub npe nrov ntawm tam sim no transformer nyob rau hauv lub hwj chim kev lag luam.
Voltage transformer (PT): nws yog cov khoom siv hluav taws xob uas hloov qhov hluav taws xob siab ntawm lub zog hluav taws xob rau hauv ib qho kev ntsuas hluav taws xob tsawg (100V lossis 100 / √ 3V).
Potential transformer (PT, VT) zoo ib yam li transformer, uas yog siv los hloov qhov voltage ntawm kab.Txawm li cas los xij, lub hom phiaj yog vim li cas transformer transforms voltage yog xa hluav taws xob hluav taws xob.Lub peev xwm loj heev, feem ntau nyob rau hauv kilovolt ampere lossis megavolt ampere raws li chav ntsuas.Lub hom phiaj yog vim li cas voltage transformer transformer voltage yog tsuas yog siv los ntsuas meters thiab lub hwj chim mov los ntawm relay tiv thaiv pab kiag li lawm, ntsuas qhov voltage, hwj chim thiab hluav taws xob lub zog ntawm txoj kab, los yog los tiv thaiv cov khoom tseem ceeb nyob rau hauv txoj kab thaum txoj kab tsis ua hauj lwm yog li ntawd, lub peev xwm ntawm voltage transformer yog me me, feem ntau tsuas yog ob peb volt ampere, kaum tawm ntawm volt ampere, thiab qhov siab tshaj plaws yog tsis ntau tshaj ib txhiab volt ampere.
Tam sim no transformer (CT): nws yog cov khoom siv hluav taws xob uas hloov qhov tam sim no hauv high voltage system los yog qhov loj tam sim no nyob rau hauv qis voltage system rau hauv ib tug tej yam me me tam sim no (5a los yog 1a).
Tam sim no transformer yog ib qho cuab yeej uas hloov cov tam sim no loj nyob rau hauv thawj sab mus rau me me tam sim no nyob rau hauv theem nrab raws li lub hauv paus ntsiab lus ntawm electromagnetic induction.Tam sim no transformer yog tsim los ntawm kaw core thiab winding.Nws thawj winding lem yog tsawg heev, thiab nws yog txuas nrog nyob rau hauv series nyob rau hauv lub Circuit Court uas yuav tsum tau ntsuas qhov tam sim no.Yog li ntawd, nws feem ntau muaj tag nrho cov tam sim no ntws los ntawm txoj kab, thiab qhov thib ob winding lem yog ntau dua.Nws txuas nrog hauv series hauv qhov ntsuas ntsuas thiab kev tiv thaiv Circuit Court.Thaum lub tam sim no transformer ua hauj lwm, nws thib ob Circuit Court yog ib txwm kaw, yog li lub impedance ntawm series coil ntawm lub ntsuas ntsuas thiab tiv thaiv Circuit Court yog heev me me, thiab lub xeev ua hauj lwm ntawm lub tam sim no transformer yog ze rau luv luv Circuit Court.Tam sim no transformer converts cov tam sim no loj ntawm thawj sab mus rau hauv lub me me tam sim no nyob rau hauv lub thib ob sab rau kev ntsuas, thiab lub thib ob sab tsis tau qhib Circuit Court.
Post lub sij hawm: Mar-10-2021