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Isixhobo sokumelana neParallel
Isixhobo sokumelana ne-parallel siseti yekhabhinethi yokumelana nesixhobo sokukhetha umgca obanzi efakwe ngokuhambelana nendawo engathathi hlangothi yenkqubo kwaye idibaniswe ne-arc suppression coil.Ukhetho olusebenzayo ngakumbi kunye noluchanekileyo lwemigca yeempazamo.Kwi-arc-suppressing coil system, i-parallel resistance edibeneyo yokukhetha umgca ingasetyenziselwa ukufezekisa i-100% yokuchaneka kokukhetha umgca.Isixhobo sokumelana ne-parallel, okanye ikhabhinethi yokumelana ne-parallel, iqulethwe ngabaxhamli be-grounding, i-high-voltage vacuum connectors, i-transformers yangoku, ukufumana umqondiso wangoku kunye neenkqubo zokuguqulwa, iinkqubo zokulawula ukutshintshwa kokutshintsha, kunye nokuxhasa iinkqubo zokukhetha umgca ozinikeleyo.
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Ijenereyitha engathathi hlangothi kwikhabhinethi yokumelana nesiseko
Ikhabhinethi engathathi hlangothi yokumelana ne-Hongyan generator ifakwe phakathi kwendawo engathathi hlangothi yejeneretha kunye nomhlaba.Ngethuba lokusebenza kwe-generator, i-single-phase-grounding iyona nto ixhaphake kakhulu, kwaye indawo ephosakeleyo iya kwandisa ngakumbi xa i-arcing isekelwe.Umonakalo wokugquma kwe-stator okanye ukutshisa okuphakathi kwentsimbi kunye nokutshisa.Ngamazwe ngamazwe, kwiimpazamo zomhlaba wesigaba esisodwa kwiinkqubo zejeneretha, ukuchasana okuphezulu kwesiseko kwindawo engathathi hlangothi yeejeneretha kusetyenziswa ngokubanzi ukukhawulela umhlaba okhoyo kunye nokuthintela iingozi ezahlukeneyo zokugqithisa.Inqaku elingathathi hlangothi linokuthi lisekelwe kwi-resistor ukukhawulela impazamo yangoku kwixabiso elifanelekileyo, ukuphucula uvakalelo lokukhusela i-relay kunye nesenzo sokukhubeka;ngelo xesha, kuphela ukutshisa okuncinci kwendawo kunokuthi kwenzeke kwindawo yempazamo, kwaye ukugqithisa okwethutyana kunqunyelwe kumbane oqhelekileyo womgca.Amaxesha angama-2.6 we-voltage ye-neutral point, ethintela ukutshiswa kwakhona kwe-arc;ikhusela i-arc gap overvoltage ekonakalisa izixhobo eziphambili;kwangaxeshanye, inokuthintela ngempumelelo i-ferromagnetic resonance overvoltage, ngaloo ndlela iqinisekisa ukusebenza ngokukhuselekileyo kwejenereyitha.
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Ikhabhinethi yokumelana neTransformer engathathi hlangothi
Kwigridi yamandla ye-6-35KV AC yenkqubo yamandla yelizwe lam, kukho iindawo ezingathathi hlangothi, ezisekelwe kwiikhoyili zokucinezelwa kwe-arc, ukuxhathisa okuphezulu okusekelwe phantsi, kunye nokumelana okuncinci okusekelwe phantsi.Kwinkqubo yamandla (ingakumbi inkqubo yonikezelo lwamandla othungelwano lwasezidolophini kunye neentambo njengemigca yothumelo ephambili), i-ground capacitive current inkulu, enokwenza ukuba kwenzeke "intermittent" arc overvoltage yomhlaba ineemeko ezithile "ezibalulekileyo", ezikhokelela kwi-arcing. Ukusetyenziswa kwendlela yokusekela indawo engathathi hlangothi yokuvelisa i-grounding overvoltage yenza umjelo wokukhupha amandla (intlawulo) kwi-grid-to-ground capacitance, kwaye ifake i-resissive current kwi-fault point, yenza ukuba i-grounding fault current ithathele ingqalelo. indalo yokumelana-i-capacitance, ukunciphisa kunye Umehluko we-angle yesigaba se-voltage kunciphisa izinga lokutsha kwakhona emva kokuba okwangoku kwindawo yecala liwela i-zero kwaye liphule imeko "ebalulekileyo" ye-arc overvoltage, ukwenzela ukuba i-overvoltage iyancipha ngaphakathi kwe-2.6 amaxesha ombane wesigaba, kwaye kwangaxeshanye uqinisekisa ukhuseleko lomhlaba olunovakalelo oluphezulu Isixhobo simisela ngokuchanekileyo kwaye sinqumle iziphene eziziiprayimari nezesibini ze-feeder, ngaloo ndlela zikhusela ngokufanelekileyo ukusebenza kwesiqhelo kwenkqubo.
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Ikhabhinethi yokumelana nokuphantsi
Ngophuhliso olukhawulezayo lweegridi zamandla asezidolophini nasezilalini, utshintsho olukhulu lwenzekile kwisakhiwo segridi yamandla, kwaye inethiwekhi yokusabalalisa elawulwa yintambo ibonakale.Umsinga we-capacitance current unyuke kakhulu.Xa impazamo yomhlaba yenqanaba elinye isenzeka kwinkqubo, zimbalwa kwaye zimbalwa iimpazamo ezinokuhlawuleka.Ukusetyenziswa ukuxhathisa indlela yokumisa hayi nje ukuziqhelanisa nophuhliso oluphambili kunye neemfuno zotshintsho lwegridi yamandla elizwe lam, kodwa kunciphisa inqanaba lokufakelwa kwezixhobo zokuhambisa amandla ngebakala elinye okanye amabini, ukunciphisa utyalo-mali lwegridi yamandla iyonke.Sika impazamo, cinezela i-resonance overvoltage, kwaye uphucule ukhuseleko kunye nokuthembeka kwenkqubo yamandla.
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Ibhokisi yokumelana ne-damping
Ukuze kuthintelwe i-voltage engalinganiyo yendawo engathathi hlangothi yenkqubo yegridi ekunyuseni ngenxa yegalelo kunye nomlinganiselo wekhoyili yokucinezela i-arc xa i-coil yokucinezela i-arc yemodi yembuyekezo yangaphambili isebenza phantsi kwemeko eqhelekileyo yegridi yamandla. , iyaphandwa ize iyilwe.Xa igridi yamandla isebenza ngokuqhelekileyo, lungisa i-inductance ye-arc yokucinezela i-coil kwindawo efanelekileyo kwangaphambili, kodwa ngeli xesha i-inductance kunye ne-capacitive reactance iphantse ilingane, eya kwenza igridi yamandla kwimeko ekufutshane ne-resonance, ebangela ukuba igridi yamandla ibe kufutshane ne-resonance. indawo yombane engathathi hlangothi iza kunyuka.Ukuze kuthintelwe oku Ukuba isenzeko senzeka, isixhobo sokumelana ne-damping songezwa kwisixhobo sembuyekezo ye-arc yokucinezela kwimowudi yohlengahlengiso lwangaphambili, ukuze ucinezele i-voltage yokufuduka yendawo engathathi hlangothi kwindawo efunekayo kwaye uqinisekise okuqhelekileyo. ukusebenza kothungelwano lonikezelo lwamandla.
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Iseti epheleleyo ye-coil yokunciphisa i-arc elawulwa ngesigaba
Inkcazo yomgaqo wolwakhiwo
I-coil yokunciphisa i-arc elawulwa yisigaba nayo ibizwa ngokuba "uhlobo oluphezulu lwe-impedance yesiphaluka", oko kukuthi, i-primary winding ye-arc suppression coil kwisixhobo esipheleleyo sidibaniswe kwindawo engathathi hlangothi yothungelwano losasazo njenge-winding yokusebenza, kwaye Ukujija okwesibini kusetyenziswa njengolawulo lokujija ngamabini adibeneyo abuyela umva I-thyristor ifutshane-ijikelezwe, kwaye i-short-circuit current kumoya wesibini ilungiswa ngokuhlengahlengisa i-angle yokuqhuba ye-thyristor, ukuze iqonde uhlengahlengiso olunokulawulwa ixabiso lokusabela.iyahlengahlengiswa.
I-angle conduction ye-thyristor iyahluka ukusuka kwi-0 ukuya kwi-1800, ukwenzela ukuba i-impedance elinganayo ye-thyristor iyahluka ukusuka kwi-infinity ukuya kwi-zero, kwaye imbuyekezo yembuyekezo yangoku inokulungiswa ngokuqhubekayo phakathi kwe-zero kunye nexabiso elilinganisiweyo.
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I-Capacitance-adjustable arc coil coil coil iphelele
Inkcazo yomgaqo wolwakhiwo
I-capacity-adjusting arc suppressing coil kukongeza i-coil yesibini kwi-arc yokunciphisa i-coil device, kwaye amaqela amaninzi emithwalo ye-capacitor axhunyiwe ngokuhambelana kwi-coil yesibini, kwaye isakhiwo sayo siboniswe kumzobo ongezantsi.U-N1 lolona jiko luphambili, kwaye u-N2 lolona jiko lulandelayo.Amaqela amaninzi e-capacitors ane-vacuum switches okanye i-thyristors axhunyiwe ngokuhambelana kwicala lesibini ukulungelelanisa ukusabela kwe-capacitive ye-capacitor yecala lesibini.Ngokomgaqo wokuguqulwa kwe-impedance, ukulungelelanisa ixabiso le-capacitive reactance yecala lesibini kunokuhlangabezana nemfuneko yokutshintsha i-inductor yangoku yecala eliphambili.Kukho iimvume ezininzi ezahlukeneyo kunye nokudibanisa ubungakanani bexabiso le-capacitance kunye nenani lamaqela ukuhlangabezana neemfuno zoluhlu lohlengahlengiso kunye nokuchaneka.
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Iseti epheleleyo ye-bias magnetic arc suppression coil
Inkcazo yomgaqo wolwakhiwo
Uhlobo lwe-arc yokucinezela i-coil luthatha ulungelelwaniso lwecandelo lentsimbi elizibuthe kwikhoyili ye-AC, kwaye ukungeneka kozibuthe kumbindi wentsimbi kuyatshintshwa ngokufaka i-DC yokuvuselela yangoku, ukuze kuqondwe uhlengahlengiso oluqhubekayo lwe-inductance.Xa impazamo yomhlaba wesigaba esisodwa yenzeka kwigridi yamandla, umlawuli ngokukhawuleza ulungisa i-inductance ukuze ahlawule i-capacitance current current.
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HYXHX isixhobo esikrelekrele sokucinezela i-arc series
Kwilizwe lam le-3 ~ 35KV inkqubo yonikezelo lwamandla, uninzi lwazo ziinkqubo ezingathathi hlangothi ezingenasiseko.Ngokutsho kwemimiselo kazwelonke, xa isiseko sesigaba esisodwa senzeke, inkqubo ivumelekile ukuba iqhube ngephutha kwiiyure ezi-2, ezinciphisa kakhulu iindleko zokusebenza kunye nokuphucula ukuthembeka kwenkqubo yokubonelela umbane.Nangona kunjalo, ngenxa yokunyuka ngokuthe ngcembe kumandla ombane wenkqubo, imowudi yonikezelo lwamandla yi Umgca ongaphezulu uguqulwa ngokuthe ngcembe ube ngumgca wentambo, kwaye i-capacitance current yenkqubo emhlabeni iya kuba nkulu kakhulu.Xa inkqubo isekelwe kwinqanaba elinye, i-arc eyenziwe yi-capacitive current egqithisileyo ayikho lula ukucima, kwaye inokwenzeka kakhulu ukuba iguquke kwi-intermittent arc grounding.Ngeli xesha, i-arc grounding overvoltage kunye ne-ferromagnetic resonance overvoltage echulumancisayo yiyo iya kuba kubeka emngciphekweni ukusebenza ngokukhuselekileyo kwegridi yamandla.Phakathi kwabo, i-single-phase-arc-ground overvoltage iyona nto inzima kakhulu, kwaye inqanaba lokugqithisa lesigaba esingenasiphoso linokufikelela kwi-3 ukuya ku-3.5 amaxesha ombane wesigaba esiqhelekileyo sokusebenza.Ukuba ukugqithisa okuphezulu okunjalo kusebenza kwigridi yamandla iiyure ezininzi, ngokuqinisekileyo kuya kulimaza ukufakwa kwezixhobo zombane.Emva kwamaxesha amaninzi omonakalo oqokelelweyo kwi-insulation yezixhobo zombane, indawo ebuthathaka yokugquma iya kwenziwa, eya kubangela ingozi yokuchithwa kwe-insulation yomhlaba kunye nesiphaluka esifutshane phakathi kwezigaba, kwaye kwangaxeshanye kubangele ukuchithwa kwe-insulation yezixhobo zombane (ingakumbi. Ukonakaliswa kwe-insulation yemoto)), into yokuqhushumba kwentambo, ukugcwala kwe-voltage transformer ivuselela umzimba we-ferromagnetic resonance ukuba utshise, kunye nogqabhuko-dubulo lwesibambi kunye nezinye iingozi.
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Iseti epheleleyo ye-turn-adjusting arc suppression coil
Kwinkqubo yenguqu kunye nokusasazwa kwenethiwekhi, kukho iintlobo ezintathu zeendlela zokumisa inqaku elingathathi hlangothi, enye yindawo engathathi hlangothi, enye yindawo engathathi hlangothi ngenkqubo yokumisa ikhoyili yokucinezelwa kwe-arc, kwaye enye yindawo engathathi hlangothi ngokuchasa. inkqubo yokumisa phantsi.
