Lub transformer yog cov khoom siv nyob ruaj ruaj hauv kev ua haujlwm tas mus li, uas ua haujlwm tau zoo dua thiab muaj tsawg dua qhov ua tsis tiav. Txawm li cas los xij, vim tias feem ntau ntawm cov tshuab hloov hluav taws xob tau teeb tsa sab nraum zoov, thiab cuam tshuam los ntawm kev thauj khoom thaum lub sijhawm ua haujlwm thiab kev ua haujlwm luv luv ntawm lub zog hluav taws xob, ntau yam kev ua txhaum thiab cov xwm txheej tsis zoo yuav tshwm sim thaum lub sijhawm ua haujlwm.
1. Feem ntau faults thiab anomalies ntawm transformers
Transformer faults tuaj yeem muab faib ua qhov tsis raug sab hauv thiab sab nraud.
Internal txhaum yog hais txog qhov txhaum uas tshwm sim hauv rooj plaub, xws li interphase winding short-circuit txhaum, ib-theem winding inter-turn short-circuit txhaum, luv-circuit txhaum ntawm winding thiab hlau core, winding kab tawg txhaum, thiab lwm yam.
External faults xa mus rau ntau yam inter-theem luv-circuit faults ntawm sab nraud lead kab ntawm transformer thiab ib-theem hauv av faults tshwm sim los ntawm flashover ntawm lub rwb thaiv tsev bushing ntawm cov hlau lead kab los ntawm lub thawv plhaub.
Transformer tsis ua haujlwm yog qhov txaus ntshai heev. Tshwj xeeb tshaj yog thaum muaj teeb meem sab hauv, qhov kub-kub arc generated los ntawm luv luv-circuit tam sim no yuav tsis tsuas hlawv lub rwb thaiv tsev thiab hlau core ntawm transformer winding, tab sis kuj ua rau cov transformer roj decompose los ntawm tshav kub thiab tsim ib tug loj npaum li cas ntawm cov roj. , ua rau lub plhaub transformer deformation lossis txawm tawg. Yog li ntawd, thaum lub transformer tsis ua hauj lwm, nws yuav tsum tau txiav tawm.
Qhov teeb meem txawv txav ntawm lub transformer feem ntau muaj xws li overload, roj theem txo, overcurrent tshwm sim los ntawm sab nraud luv luv Circuit Court, siab roj kub ntawm lub transformer nyob rau hauv lub lag luam, siab winding kub, siab transformer siab, thiab cua txias system tsis ua hauj lwm. Thaum lub transformer nyob rau hauv lub xeev ua hauj lwm txawv txav, lub tswb ceeb toom yuav tsum tau muab.
2. Configuration ntawm transformer tiv thaiv
Kev tiv thaiv tseem ceeb ntawm kev ua txhaum luv luv: feem ntau suav nrog kev tiv thaiv ntev ntev, kev tiv thaiv roj hnyav thiab lwm yam.
Short-circuit txhaum thaub qab tiv thaiv: feem ntau compound voltage xauv overcurrent tiv thaiv, xoom sequence (kev taw qhia) overcurrent tiv thaiv, tsis tshua muaj impedance tiv thaiv thiab hais txog.
Kev tiv thaiv kev ua haujlwm txawv txav: feem ntau yog kev tiv thaiv overload, kev tiv thaiv dhau-excitation, tiv thaiv roj teeb, tiv thaiv qhov sib txawv nruab nrab, qib roj kub thiab kev tiv thaiv kev ua kom txias.
3, tsis muaj hluav taws xob tiv thaiv
Kev tiv thaiv transformer muaj xws li cov roj uas tsis yog hluav taws xob xws li roj, roj thiab qhov kub thiab txias yog hu ua kev tiv thaiv tsis muaj hluav taws xob. Kev tiv thaiv roj tseem ceeb, kev tiv thaiv siab, tiv thaiv qhov kub thiab txias, tiv thaiv roj qib thiab kev tiv thaiv kom txias tag nrho. Kev tiv thaiv tsis yog hluav taws xob raws li qhov chaw yuav tsum tau ua hauv tripping lossis xa xov.
