Distribution transformer tsis-load poob txhais li cas?
Tsis muaj-load poob yog hais txog lub zog siv hluav taws xob thaum lub tshuab hluav taws xob thib ob ntawm lub tshuab hluav taws xob qhib thiab cov thawj winding yog siv nrog lub ntsuas hluav taws xob nrog lub sinusoidal waveform ntawm cov zaus zaus. Tsis-load losses yog tas li poob. Nws tsis muaj dab tsi cuam tshuam nrog qhov tam sim no dhau mus, tab sis nrog qhov hluav taws xob uas cov tivthaiv raug rau. Muaj ntau yam cuam tshuam rau qhov tsis muaj kev ua haujlwm ntawm cov khoom siv hluav taws xob, xws li cov khoom siv ntawm cov ntawv silicon steel, kev siv thev naus laus zis thiab khoom siv, thiab cov qauv ntawm cov tub ntxhais hlau.
Transformer yog ib qho ntawm cov khoom siv hluav taws xob tseem ceeb tshaj plaws hauv lub zog hluav taws xob, thiab txo nws lub zog poob yog qhov tseem ceeb ntawm kev lag luam rau hauv daim phiaj hluav taws xob. Tsis muaj-load poob yog ib qho tseem ceeb parameter ntawm kev faib transformer. Ntev npaum li nws muab tso rau hauv daim phiaj hluav taws xob, tsis muaj qhov poob yog tib yam txawm hais tias nws tsis muaj-load lossis ntau npaum li cas thauj. Tsis muaj-load poob tsis muaj dab tsi ua nrog lub load ntawm lub transformer. Raws li ntev raws li lub transformer txuas nrog lub hwj huam mov tag nrho lub xyoo puag ncig, qhov tsis muaj load poob tshwm sim, thiab nws yuav tsum tau siv lub zog rau lub sij hawm ntev, uas qhia tau hais tias yuav tsum tau txo qhov tsis muaj load poob.
Muaj ntau yam cuam tshuam rau qhov tsis muaj kev ua haujlwm ntawm cov khoom siv hluav taws xob, xws li cov khoom siv ntawm cov ntawv silicon steel, kev siv thev naus laus zis thiab khoom siv, thiab cov qauv ntawm cov tub ntxhais hlau. Txhawm rau tsim cov khoom siv hluav taws xob uas tsis muaj qhov poob qis, ntawm ib sab, siv cov ntaub ntawv silicon steel nrog qis chav tsev poob; ntawm qhov tod tes, nws yog ib qho tsim nyog los txhim kho cov qauv thiab txhim kho cov txheej txheem tsim khoom. Txawm li cas los xij, qhov tsis muaj kev thauj khoom tsis tuaj yeem txo qis los ntawm kev siv cov ntawv silicon steel nrog qis qis, uas yuav ua rau cov nqi tsim khoom tseem ceeb. Los ntawm kev txhim kho cov qauv thiab txhim kho cov txheej txheem tsim khoom kom txo tau qhov tsis muaj kev thauj khoom, nws tuaj yeem tsis tsuas yog txuag cov ntaub ntawv, tab sis kuj txuag nqi thiab lub zog. Silicon steel ntawv
Transformer tsis-load poob
Txhawm rau txo qhov tsis muaj load poob ntawm lub transformer, nws yog ib qho tsim nyog yuav tsum nkag siab txog qhov muaj pes tsawg leeg ntawm qhov tsis muaj load thiab qhov cuam tshuam ntawm txhua qhov chaw. Raws li cov xwm txheej no, qee txoj hauv kev tau txais yuav los txo qhov tsis muaj kev thauj khoom. Qhov tsis muaj load poob ntawm lub transformer feem ntau yog tsim los ntawm hysteresis poob, eddy tam sim no poob thiab ntxiv poob hauv cov tub ntxhais hlau.
1. Hysteresis poob
Txij li thaum cov tub ntxhais hlau raug cuam tshuam los ntawm kev hloov pauv ntawm lub sijhawm tam sim no, kev teeb tsa ntawm cov dipoles ntawm cov khoom siv ferromagnetic kuj hloov pauv raws sijhawm thiab ua rau muaj qhov tshwm sim hysteresis, uas ua rau lub zog poob ntawm cov hlau nplaum sib txuas ntawm cov tub ntxhais hlau, uas yog. feem ntau hu ua hysteresis poob. .
2. Eddy tam sim no poob
Thaum cov hlau nplaum sib nqus dhau los ntawm cov tub ntxhais hlau hloov pauv, cov eddy tam sim no tsim nyob rau hauv cov tub ntxhais hlau, uas ncig hauv lub dav hlau perpendicular mus rau magnetic flux vector. Lub zog magnetizing tsim los ntawm eddy tam sim no ib txwm sim los tiv thaiv qhov kev hloov ntawm qhov qub magnetizing quab yuam, yog li ua rau eddy tam sim no poob.
3. Ntxiv qhov poob ntawm cov tub ntxhais hlau
Qhov poob ntxiv ntawm cov tub ntxhais hlau yog txiav txim siab los ntawm cov hauv qab no:
(1) Cov khoom siv. Xws li cov yam ntxwv kev taw qhia ntawm cov ntawv silicon steel, kev ua haujlwm tsis zoo thiab cov yam ntxwv ntawm cov yeeb yaj kiab insulating.
(2) Tsim qauv. Xws li core seam daim ntawv, core stacking method, core overlap width, thiab lwm yam.
(3) Txheej txheem txheej txheem. Xws li qhov tseeb qhov tseeb thiab qhov loj me ntawm kev xuas nrig ntaus thiab shearing, tuav thiab stacking ntawm silicon steel nplooj ntawv nyob rau hauv tus txheej txheem ntawm tuav thiab stacking, thiab stacking zoo.
