Lightning Impulse Voltage Test
Kev ntsuas hluav taws xob hluav taws xob hluav taws xob yog siv los xyuas kom meej tias lub ntsiab thiab qhov ntev ntawm cov rwb thaiv tsev cuam tshuam lub zog ntawm transformers ua raws li lub teb chaws tus qauv, nrog rau kev txhim kho thiab txhim kho cov txheej txheem rwb thaiv tsev transformer. Qhov kev sim no siv cov qauv xob laim impulse waveforms rau transformer winding terminals los simulate tiag tiag xob laim tawm tsam, xyuas seb puas transformers thiab lwm yam khoom siv hluav taws xob muaj peev xwm tiv taus kev puas tsuaj overvoltage nyob rau hauv cov xwm txheej xob laim.
Ob qhov qauv waveforms raug coj los siv rau hauv qhov kev sim: tag nrho xob laim nthwv dej thiab tws xob laim yoj. Lub tws yoj simulates qhov tseeb voltage waveform tsim los ntawm flashover ntawm kev tiv thaiv qhov khoob los yog huab cua rwb thaiv tsev hauv substations. Nws yog tsim los ntawm kev txiav tam sim ntawd ntawm ib qho hluav taws xob ua tiav, uas ua rau muaj qhov poob qis tam sim ntawm qhov hluav taws xob mus rau xoom, nrog rau txoj haujlwm truncation tshwm sim ntawm ob lub nthwv dej pem hauv ntej lossis yoj tus Tsov tus tw.
Qhov kev sim no feem ntau muaj lub tshuab hluav taws xob impulse voltage thiab txhawb cov khoom siv ntsuas, suav nrog cov pob hluav taws xob, hluav taws xob faib hluav taws xob thiab siab -voltage oscilloscopes rau kev soj ntsuam waveform. Raws li tus qauv specifications, tag nrho cov xob laim nthwv dej nta lub sij hawm pem hauv ntej ntawm 1.2 ± 30% μs thiab ib nrab - lub sij hawm ncov ntawm 50 ± 20% μs. Lub sij hawm truncation ntawm tws nthwv dej yog tswj nyob rau hauv 2-6 μs, thiab nws xoom- hla coefficient (tus piv ntawm thawj oscillating ncov tom qab truncation rau lub truncated yoj amplitude) yog li ntawm 0.25 mus rau 0.35.
Kev tshaj lij xob laim impulse kuaj cov cuab yeej tsuas yog nruab rau hauv cov tuam txhab loj transformer thiab cov kws tshaj lij kev tshawb fawb thiab kev sim. Cov tuam txhab lag luam ib txwm tuaj yeem tso siab rau qhov tsim nyog thib peb - cov koom haum tog kom ua tiav qhov kev xeem.
Fais fab zaus Withstand Voltage Test
Lub hwj chim zaus tiv taus qhov ntsuas hluav taws xob yog qhov kev ntsuas kev ntsuas hluav taws xob zoo rau cov khoom siv hluav taws xob. Muaj feem xyuam rau cov chaw nres tsheb fais fab, cov khoom siv hluav taws xob thiab cov khoom siv hluav taws xob thiab cov chaw tshawb fawb tshawb fawb, nws yog siv los txheeb xyuas lub zog rwb thaiv tsev ntawm ntau yam khoom siv hluav taws xob, cov khoom siv hluav taws xob thiab cov ntaub ntawv insulating nyob rau hauv cov ntsuas hluav taws xob zaus voltage.
Qhov kev ntsuam xyuas no tuaj yeem soj ntsuam tag nrho cov txheej txheem rwb thaiv tsev ntawm cov khoom, nthuav tawm cov khoom siv hluav taws xob sab hauv, thiab txheeb xyuas qhov muaj peev xwm tiv thaiv hluav taws xob overvoltage ntawm cov khoom siv hluav taws xob, ua ib qho kev ntsuam xyuas tseem ceeb los xyuas kom muaj kev nyab xeeb thiab ruaj khov ntawm cov khoom siv hluav taws xob.
