Ikhonkco elibuthathaka kakhulu kwinkqubo yokukhusela i-relay yi-transformer kwi-voltage system voltage.Kwi-loop ye-voltage, kulula ukungasebenzi kakuhle ngexesha lokusebenza.I-transformer kwi-voltage idlala indima ebaluleke kakhulu ekusebenzeni okuqhelekileyo kwenkqubo yamandla.Umsebenzi, nangona kungekho zixhobo ezininzi kwinkqubo yesekethe yesibini ye-voltage transformer, kwaye inkqubo ye-wiring ayinzima kakhulu, kuya kuhlala kukho ezinjalo kunye nezinye iimpazamo kwinkqubo.Iimpazamo ezenzeka kwisekethe yesibini ye-voltage transformer ayinakungahoywa, kwaye inokubangela iziphumo ezibi kakhulu, njengokungasebenzi kakuhle kunye nokwaliwa kwesixhobo sokukhusela.Ngokwemeko edlulileyo, isekethe yesibini ye-voltage transformer ikwinkqubo Ukusilela kubonakaliswa ikakhulu kule miba ilandelayo:
1. Indlela yokumisa ingongoma yesekethe yesibini ye-voltage transformer ihluke kwiimeko eziqhelekileyo.Isiphaluka sesibini se-voltage transformer ayibonisi isiseko sesibini okanye i-multi-point grounding.Isiseko sesibini sikwabizwa ngokuba yisiseko sesibini senyani.Isizathu esona sizathu salokhu kukongeza kwingxaki yegridi yokumisa kwi-substation, ingxaki ebaluleke ngakumbi ikwinkqubo yocingo.Isiseko sesibini se-voltage sensor siya kuvelisa i-voltage ethile phakathi kwayo kunye negridi yomhlaba.Lo mbane unqunywe ngumlinganiselo wokungalingani phakathi kwee-voltages kunye nokuxhatshazwa okwenziwa ngokudibana nomnye, kunye ne-voltage eveliswa ngokuqhagamshelana negridi yomhlaba Ngelo xesha, iya kuphinda ibekwe phezulu phakathi kombane wesixhobo ngasinye sokukhusela, okuya kubangela utshintsho oluthile lwexabiso le-amplitude ye-voltage yesigaba ngasinye kunye nokuguquguquka kwesigaba esihambelanayo ukuya kumlinganiselo othile, okuya kubangela ukuba i-impedance kunye ne-directional components ukuba ingasebenzi kakuhle kwaye yale ukuhamba..
2. Umbane wonxantathu ovulekileyo we-voltage transformer awuqhelekanga kwi-loop.Umbane wonxantathu ovulekileyo we-voltage transformer uya kunqunyulwa kwi-loop.Kukho izizathu zoomatshini.Ukwenzeka kwesekethe emfutshane ngexesha elinye kunxulumene kakhulu nemikhwa ethile yokusetyenziswa kombane.Ukuze ufezekise ixabiso elimiselweyo le-voltage ye-zero-sequence, phantsi kokukhuselwa kwe-transformer kunye nebhasi ye-electromagnetic, ukuxhatshazwa kwangoku kokunciphisa i-relay kwi-voltage short-circuited.Abanye abantu bade basebenzise i-relay encinci.Isiphumo kukuba Iya kunciphisa kakhulu into yokuthintela umbane ovulekileyo we-delta kwi-loop.Nangona kunjalo, xa kukho impazamo yokumisa ngaphakathi kwisikhululo esingaphantsi okanye kwindawo yokuphuma, i-voltage yokulandelelana kwe-zero iya kuba nkulu kakhulu, kwaye ukunyanzeliswa komthwalo we-loop kuya kuba kuncinci.Umbane uya kuba mkhulu, kwaye i-coil ye-relay yangoku iya kudlula, eya kubangela ukuba i-insulation yonakaliswe, kwaye ke isiphaluka esifutshane siya kwenzeka.Ukuba imeko ye-short-circuit ihlala ixesha elide, iya kubangela ukuba i-coil itshise.Akuqhelekanga ukuba i-voltage transformer iphule kwikhoyili etshiswayo.
3. Ilahleko yombane wesibini weenguqu zamandla ombane Ukulahleka kombane wesibini kwiinguqu zamandla ombane yingxaki yakudala edla ngokwenzeka kwiinkqubo zokukhusela amandla ombane.Isizathu esiphambili sale ngxaki kukuba ukusebenza kweentlobo ezahlukeneyo zezixhobo zokuqhawula akuphelelanga..Kwaye ukungafezeki kwenkqubo ye-loop yesibini.
4. Sebenzisa iindlela zokuhlola ezichanekileyo
4.1 Indlela yokuhlola ngokulandelelana Le ndlela kukusebenzisa iindlela zokuhlola nezokulungisa ukufumana oyena nobangela wempazamo.Kuqhutyelwa ngomyalelo wokuhlolwa kwangaphandle, ukuhlolwa kwe-insulation, ukuhlolwa kwexabiso elingaguqukiyo, ukuhlolwa kokusebenza kombane, ukuhlolwa kokusebenza kokukhusela, njl.Kukwinkqubo yokusingatha iingozi apho kukho ingxaki yokuhamba okanye ingqiqo.
4.2 Sebenzisa yonke isethi yendlela yokuvavanya Injongo ephambili yale ndlela kukukhangela ukuba ingaba intshukumo kunye nexesha lesenzo sesixhobo sokukhusela liqhelekileyo, kwaye kunokuthatha ixesha elifutshane ukuvelisa kwakhona impazamo.Kwaye uchonge ingcambu yengxaki, ukuba kukho ukungaqhelekanga, uze udibanise ezinye iindlela zokujonga.
4.3 Ukubuyisela umva indlela yokuhlola ulandelelwano Ukuba irekhodi yesiganeko somhloli wokukhusela i-microcomputer relay kunye nerekhoda yombane ayikwazi ukufumana ingcambu yengozi ngexesha elifutshane, ingqalelo kufuneka ihlawulwe kwisiphumo sengozi.Jonga phambili ukusuka kwinqanaba ukuya kwinqanaba de unobangela ufunyenwe.Le ndlela isetyenziswa rhoqo xa ukhuseleko lungasebenzi kakuhle.
4.4 Sebenzisa ngokupheleleyo ingcaciso yempazamo enikwe yi-microcomputer relay protection tester, kwaye ulandele amanyathelo achanekileyo.
(1) Sebenzisa ngokupheleleyo irekhoda yempazamo kunye nerekhodi yexesha.Irekhodi yesiganeko, imizobo yerekhoda yempazamo, kunye nesiginali yokubonisa ukukhanya kwesixhobo somvavanyi we-microcomputer relay yokukhusela zisisiseko esibalulekileyo sokuphatha ingozi.Ukwenza izigwebo ezichanekileyo ezisekelwe kulwazi oluluncedo ngundoqo ekusombululeni ingxaki.
(2) Emva kokuba ezinye iingozi zokukhusela i-relay zenzeke, imbangela yokungaphumeleli ayinakufumaneka ngokwemiyalelo yesignali kwindawo.Okanye akukho mqondiso wesignali emva kohambo lwesiphaluka, kwaye akunakwenzeka (ukuchaza) ingozi eyenziwe ngumntu okanye ingozi yesixhobo.Le meko idla ngokubangelwa kukungahoywa ngokwaneleyo kwabasebenzi, amanyathelo angonelanga, kunye nezinye izizathu.Iingozi ezenziwe ngabantu kufuneka zibonakaliswe ngokunyanisekileyo ukuze zihlalutye kwaye ziphephe ukuchitha ixesha.
Ixesha lokuposa: Dec-29-2021