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Transformer Tan Delta Test: Cov cuab yeej tseem ceeb rau Transformer Diagnosis

Jun 13, 2024 Tso lus

Tan delta test yog ib qho tseem ceeb rau kev kuaj mob rau cov transformers, raws li nws tuaj yeem txheeb xyuas cov teeb meem cuam tshuam txog kev rwb thaiv tsev ua ntej lawv dhau los ua qhov tseem ceeb thiab tiv thaiv kev hloov pauv tsis ua haujlwm. Qhov kev ntsuas no ntsuas qhov rwb thaiv tsev zoo ntawm lub tshuab hloov pauv los ntawm kev ntsuas lub zog poob vim qhov xau tam sim no los ntawm kev rwb thaiv tsev ntawm ntau qhov chaw ntawm lub transformer. Yog tias qhov rwb thaiv tsev tsis zoo no tsawg, lub transformer yuav muaj kev pheej hmoo siab ua tsis tiav.

Lub tshuab hluav taws xob rwb thaiv tsev tuaj yeem ua rau lub sijhawm tsis zoo vim yog ib puag ncig xws li qhov kub thiab txias, noo noo, thiab cov kab mob tsis zoo, thiab kev kuaj tan delta kom ntseeg tau tias cov rwb thaiv tsev tseem nyob hauv qhov kev siv tau. Qhov kev ntsuam xyuas txiav txim siab txog lub zog ntawm tag nrho peb theem ntawm lub tshuab hluav taws xob rwb thaiv tsev, suav nrog winding, bushings, thiab insulating roj.

Qhov kev ntsuam xyuas yog pib los ntawm kev siv lub siab voltage rau lub transformer winding thaum ua kom lwm yam terminals grounded. Yog li ntawd, ib qho tam sim no pib ntws los ntawm kev rwb thaiv tsev. Qhov tam sim no feem ntau cuam tshuam los ntawm lub peev xwm ntawm cov rwb thaiv tsev, thiab lub kaum sab xis poob ntawm qhov tam sim no thiab voltage theem kev sib raug zoo yog hu ua tan delta. Qhov kev ntsuas no txiav txim siab lub kaum sab xis thiab muab piv rau lub Hoobkas tshwj xeeb lossis cov txiaj ntsig los ntawm kev sim ua ntej. Yog tias qhov kev hloov pauv tseem ceeb, nws tuaj yeem qhia tias muaj teeb meem nrog lub rwb thaiv tsev.

Txawm hais tias qhov kev sim tan delta feem ntau yog siv rau hauv cov txheej txheem tshiab transformer commissioning, nws siv kuj tseem ceeb hauv cov laus transformers thaum lub sij hawm tu. Qhov no yuav ua kom lub transformer txuas ntxiv ua haujlwm kom zoo, tswj nws qhov kev ua tau zoo, thiab ua kom nws txoj sia nyob ntev.

Kev ntsuas tan delta yog qhov tseeb, txhim khu kev qha, thiab tus nqi tsim nyog los ntsuas cov rwb thaiv tsev zoo ntawm transformers. Nws daim ntawv thov thaum lub sij hawm sim tsis tu ncua muab ib txoj hauv kev los txheeb xyuas cov teeb meem thiab npaj rau kev saib xyuas ua ntej, yog li txuag ntawm cov peev txheej uas tsis tau npaj tseg thiab cov nqi kho. Yog li ntawd, nws yog ib qho tseem ceeb rau cov tswv tsev thiab cov tswv lag luam siv qhov kev sim no kom muaj kev ncaj ncees ntawm lawv cov transformer thiab tag nrho cov hwj chim system.

Txhawm rau kom paub qhov kev sim thiab tau txais txiaj ntsig zoo, peb lub tuam txhab tsim cov tan delta tester. Nws tuaj yeem tso tawm 12KV voltage thiab ua CVT kuaj, nrog lub vijtsam kov, yooj yim rau kev khiav lag luam. Nws yog ib qho khoom siv zoo rau kev ntsuas transformer tan delta.

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