Txoj Cai Ua Haujlwm ntawm Fais Fab Transformers

Lub hauv paus ntsiab lus ntawm kev ua haujlwm ntawm lub zog hloov hluav taws xob yog ua raws li txoj cai ntawm electromagnetic induction, siv qhov chaw sib nqus sib nqus kom xa hluav taws xob hluav taws xob thiab hloov hluav taws xob. Nws cov qauv tseem ceeb muaj cov tub ntxhais hlau thiab cov windings: thaum lub hauv paus winding txuas nrog AC lub zog, qhov hloov pauv tam sim no tsim ib qho sib nqus sib nqus flux, uas cov tub ntxhais hlau coj los ua lub voj kaw; qhov thib ob winding txiav cov magnetic flux kab, inducing ib tug electromotive quab yuam, yog li ua tiav voltage nce thiab poob. Cov txheej txheem tshwj xeeb tuaj yeem muab faib ua cov kauj ruam hauv qab no:

Electromagnetic Induction Stage: Hloov tam sim no nyob rau hauv thawj winding generates ib ntus hloov magnetic teb (frequency feem ntau 50Hz los yog 60Hz), thiab lub siab permeability ntawm cov tub ntxhais hlau ua kom muaj kev sib kis ntawm magnetic flux mus rau theem nrab.

Kev hloov hluav taws xob theem: Nyob ntawm qhov hloov pauv hloov pauv (N1 / N2), qhov nruab nrab qhov hluav taws xob tso zis yog proportional rau qhov hluav taws xob input (U2 / U1≈N2 / N1). Piv txwv li, yog tias thawj winding muaj 1000 lem thiab qhov thib ob winding muaj 100 lem, qhov voltage poob mus rau 1/10. Kev txuag hluav taws xob: Kev tsis saib xyuas qhov poob, lub zog nkag (P1=U1 × I1) sib npaug zog tso zis (P2=U2 × I2), thiab tam sim no hloov pauv nrog qhov hluav taws xob.

Cov yam ntxwv tseem ceeb thiab thev naus laus zis txuas ntxiv:

Txoj kev ua kom txias: Tus kheej- cua txias cia siab rau huab cua convection rau cua sov dissipation; huab cua-txoj kev txias siv lub kiv cua kom txias txias; yuam cov roj- cua txias circulates transformer roj los ntawm ib tug roj twj tso kua mis thiab yog supplemented los ntawm ib tug kiv cua, haum rau loj- muaj peev xwm transformers.

Kev ua tau zoo thiab poob: suav nrog cov hlau poob (hysteresis poob, eddy tam sim no poob) thiab tooj liab poob (cua sov los ntawm winding tsis kam), niaj hnub transformers tuaj yeem ua tau zoo ntawm 95% -99%.

Daim Ntawv Thov: Kev xa hluav taws xob xa hluav taws xob (txhim kho qhov hluav taws xob los txo cov kab poob), hluav taws xob faib hluav taws xob (txhim kho qhov hluav taws xob mus rau cov neeg siv hluav taws xob), cov cuab yeej siv hluav taws xob (xws li hluav taws xob hluav taws xob hloov hluav taws xob uas yuav tsum tau tiv taus cov hluav taws xob siab).