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Parallel kukana chipangizo
Chida chofananira chokanira ndi chida chokanira kabati chophatikizira chosankha chomwe chimayikidwa mofananira ndi gawo losalowerera ndale komanso cholumikizidwa ndi koyilo ya arc kupondereza.Kusankhidwa koyenera komanso kolondola kwa mizere yolakwika.Mu arc-suppressing coil system, cholumikizira chophatikizira chosankhira mzere chofananira chingagwiritsidwe ntchito kukwaniritsa 100% kulondola kwa kusankha mzere.Chida chofananira chokana, kapena kabati yopingasa yofananira, imapangidwa ndi zopinga zoyambira, zolumikizira zamphamvu kwambiri zamagetsi, zosinthira zamakono, zopezera ma siginecha apano ndi makina osinthira, makina owongolera osintha, ndikuthandizira makina osankha odzipereka.
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Jenereta ndale mfundo grounding kukana cabinet
The ndale mfundo grounding kukana nduna ya Hongyan jenereta anaika pakati pa ndale mfundo ya jenereta ndi pansi.Panthawi yogwiritsira ntchito jenereta, kukhazikika kwa gawo limodzi ndilo vuto lofala kwambiri, ndipo vutolo lidzakula kwambiri pamene arcing imakhazikitsidwa.Kuwonongeka kotsekera kwa stator kapena kuotcha kwachitsulo pakati ndikuwotcha.Padziko lonse lapansi, pakuwonongeka kwa gawo limodzi pamakina opangira ma jenereta, kuyika kwamphamvu kosalowerera ndale kwa majenereta kumagwiritsidwa ntchito kwambiri pochepetsa mphamvu yapano komanso kupewa zoopsa zosiyanasiyana zamagetsi.Mfundo yosalowerera ndale ikhoza kukhazikitsidwa kudzera pa chotsutsa kuti achepetse zolakwika zomwe zilipo pamtengo woyenerera, kupititsa patsogolo kukhudzika kwa chitetezo cha relay ndikuchitapo kanthu pakupunthwa;pa nthawi yomweyo, kokha m`deralo kuwotcha pang`ono akhoza kuchitika pa vuto, ndi chosakhalitsa overvoltage okha kwa voteji yachibadwa mzere.2.6 nthawi za voliyumu yopanda ndale, yomwe imachepetsa kuyatsanso kwa arc;kumalepheretsa arc gap overvoltage kuwononga zida zazikulu;pa nthawi yomweyo, akhoza mogwira kuteteza ferromagnetic resonance overvoltage, potero kuonetsetsa ntchito otetezeka jenereta.
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Transformer neutral point grounding resistance cabinet
Mu gridi yamagetsi ya 6-35KV AC yamagetsi akudziko langa, pali malo osalowerera ndale, okhazikika kudzera pa ma arc kupondereza ma coil, kukana kwambiri, komanso kukana pang'ono.Mu dongosolo mphamvu (makamaka maukonde maukonde dongosolo mphamvu m'matauni ndi zingwe monga waukulu kufala mizere), pansi capacitive panopa ndi yaikulu, zomwe zingachititse kuti zimachitika "papang'onopang'ono" arc nthaka overvoltage kukhala yeniyeni "zovuta" zinthu, chifukwa arcing Kugwiritsiridwa ntchito kwa njira yosalowerera ndale yotsatizana ndi njira yokhazikitsira mphamvu zowonjezera kumapanga njira yotulutsira mphamvu (charge) mu mphamvu ya grid-to-ground capacitance, ndikulowetsa mphamvu yamagetsi pamalo olakwika, ndikupangitsa kuti vuto loyambira likhalepo. kukana-capacitance chikhalidwe, kuchepetsa ndi The gawo ngodya kusiyana kwa voteji amachepetsa re-kuyatsa mlingo pambuyo panopa pa vuto kuwoloka ziro ndi kuswa "zovuta" chikhalidwe cha arc overvoltage, kotero kuti overvoltage ndi yochepa mkati 2.6 nthawi yamagetsi yamagetsi, ndipo nthawi yomweyo imatsimikizira chitetezo champhamvu champhamvu chapansi pazida zomwe zimatsimikizira ndikudula zolakwika zazikulu ndi zachiwiri za feeder, motero zimateteza bwino magwiridwe antchito adongosolo.
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Grounding resistance cabinet
Ndi chitukuko chofulumira cha ma gridi amagetsi akumidzi ndi akumidzi, kusintha kwakukulu kwachitika mumtundu wa gridi yamagetsi, ndipo maukonde ogawa omwe amayendetsedwa ndi zingwe awonekera.The nthaka capacitance panopa chawonjezeka kwambiri.Pamene cholakwika cha gawo limodzi chikachitika m'dongosolo, pali zolakwika zochepa zomwe zingabwezeretsedwe.Ntchito kukana grounding njira osati amazolowera chitukuko chachikulu ndi kusintha zofunika gululi dziko langa mphamvu, komanso amachepetsa kutchinjiriza mlingo wa zida kufala mphamvu ndi giredi limodzi kapena awiri, kuchepetsa ndalama za gululi mphamvu wonse.Dulani cholakwikacho, chepetsani kuchuluka kwa resonance, ndikuwongolera chitetezo ndi kudalirika kwamagetsi.
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Damping resistor box
Pofuna kupewa kuti voteji yosawerengeka ya gawo losalowerera ndale la gululi lisachuluke chifukwa cha kulowetsa ndi kuyeza koyilo ya arc kupondereza pomwe koyilo ya arc kupondereza kwa chiwongolero cha chiwongolero chikugwira ntchito pansi pa chikhalidwe cha gridi yamagetsi. , amafufuzidwa ndi kupangidwa.Pamene gululi mphamvu ikuyenda bwinobwino, kusintha inductance wa arc kupondereza koyilo pa malo oyenera pasadakhale, koma pa nthawi ino inductance ndi capacitive reactance pafupifupi ofanana, zomwe zidzapangitsa gululi mphamvu mu boma pafupi resonance, kuchititsa mphamvu ya neutral point kukwera.Kuti mupewe izi Ngati chodabwitsachi chikachitika, chipangizo chowongolera chowongolera chimawonjezedwa ku chipangizo cha arc kupondereza coil munjira yosinthiratu, kuti atseke voteji yamalo osalowerera ndale kumalo oyenera ndikuwonetsetsa kuti zonse zili bwino. kugwira ntchito kwa netiweki yamagetsi.
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Seti yathunthu yamagawo owongolera arc kupondereza koyilo
Kufotokozera mfundo zachimangidwe
The gawo-wolamulidwa arc kupondereza koyilo amatchedwanso "high short-circuit impedance mtundu", ndiko kuti, mapiringidzo oyambirira a arc kupondereza koyilo mu chipangizo wathunthu chikugwirizana ndi ndale mfundo ya maukonde kugawa monga mafunde ntchito, ndi Mapiritsi achiwiri amagwiritsidwa ntchito ngati kuwongolera kowongolera ndi ziwiri zolumikizidwa mozungulira Thyristor ndi yofupikitsa, ndipo mawonekedwe ozungulira pang'onopang'ono pamapiritsi achiwiri amasinthidwa ndikusintha ma conduction a thyristor, kuti azindikire kusintha kosinthika kwa Reactance value.chosinthika.
Mayendedwe a thyristor amasiyana kuchokera ku 0 mpaka 1800, kotero kuti kulepheretsa kofanana kwa thyristor kumasiyana kuchokera ku infinity kupita ku ziro, ndipo chiwongoladzanja chamakono chikhoza kusinthidwa mosalekeza pakati pa ziro ndi mtengo wovotera.
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Capacitance-adjustable arc kupondereza koyilo yathunthu
Kufotokozera mfundo zachimangidwe
Koyilo yochepetsera mphamvu ya arc ndikuwonjezera koyilo yachiwiri ku chipangizo chopondereza cha arc, ndipo magulu angapo a katundu wa capacitor amalumikizidwa molingana ndi koyilo yachiwiri, ndipo mawonekedwe ake akuwonetsedwa pachithunzi pansipa.N1 ndiye mapiringidwe akulu, ndipo N2 ndiye mapiri achiwiri.Magulu angapo a ma capacitor okhala ndi vacuum switches kapena thyristors amalumikizidwa mofananira mbali yachiwiri kuti asinthe momwe ma capacitive amathandizira mbali yachiwiri ya capacitor.Malinga ndi mfundo ya kutembenuka kwa impedance, kusintha kwa capacitive reactance value ya mbali yachiwiri kungathe kukwaniritsa zofunikira zosinthira inductor panopa ya mbali yoyamba.Pali zilolezo zosiyanasiyana ndi kuphatikiza kwa kukula kwa capacitance value ndi chiwerengero cha magulu kuti akwaniritse zofunikira za kusintha kwa kusintha ndi kulondola.
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Seti yathunthu ya bias magnetic arc suppression coil
Kufotokozera mfundo zachimangidwe
Koyilo yopondereza yamtundu wa arc imatenga makonzedwe a gawo lachitsulo chachitsulo mu AC koyilo, ndipo mphamvu yamagetsi yapakatikati yachitsulo imasinthidwa ndikugwiritsa ntchito mphamvu yamagetsi ya DC, kuti muzindikire kusintha kosalekeza kwa inductance.Pamene vuto limodzi la gawo la pansi limapezeka mu gridi yamagetsi, wolamulira nthawi yomweyo amasintha inductance kuti apereke mphamvu ya capacitance panopa.
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HYXHX mndandanda wanzeru arc kupondereza chipangizo
M'dziko langa lamagetsi a 3 ~ 35KV, ambiri aiwo ndi osalowerera ndale.Malingana ndi malamulo a dziko, pamene kukhazikitsidwa kwa gawo limodzi kumachitika, dongosololi limaloledwa kuyenda ndi vuto kwa maola a 2, zomwe zimachepetsa kwambiri mtengo wa ntchito ndikuwongolera kudalirika kwa kayendetsedwe ka magetsi.Komabe, chifukwa cha kuwonjezereka kwapang'onopang'ono kwa mphamvu yamagetsi yamagetsi, njira yoperekera mphamvu ndi Mzere wapamwambawu umasinthidwa pang'onopang'ono kukhala chingwe cha chingwe, ndipo mphamvu yamakono ya dongosolo pansi idzakhala yaikulu kwambiri.Dongosololi likakhazikika pagawo limodzi, arc yopangidwa ndi kuchuluka kwamphamvu kwamphamvu sikophweka kuzimitsa, ndipo imatha kusinthika kukhala yokhazikika yapakati.Panthawiyi, kuwonjezereka kwa arc grounding overvoltage ndi ferromagnetic resonance overvoltage yokondwa ndi izo zidzakhala Zikuwopsyeza ntchito yotetezeka ya gululi yamagetsi.Pakati pawo, gawo limodzi la arc-ground overvoltage ndilovuta kwambiri, ndipo kuwonjezereka kwa gawo lopanda cholakwika kumatha kufika 3 mpaka 3.5 nthawi yachibadwa yogwiritsira ntchito gawo.Ngati kuchulukitsitsa kwakukulu kotereku kumagwira pagululi yamagetsi kwa maola angapo, mosakayikira kuwononga kutsekemera kwa zida zamagetsi.Pambuyo kangapo kambirimbiri kuwonongeka kwa kutchinjiriza kwa zida zamagetsi, malo ofooka a kutchinjiriza adzapangidwa, zomwe zingayambitse ngozi ya kusweka kwa nthaka ndi kuzungulira kwapakati pakati pa magawo, ndipo nthawi yomweyo kumayambitsa kuwonongeka kwa zida zamagetsi (makamaka kuwonongeka kwa injini)), kuphulika kwa chingwe, machulukitsidwe a thiransifoma yamagetsi kumapangitsa kuti ferromagnetic resonance thupi liwotche, komanso kuphulika kwa womanga ndi ngozi zina.
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Seti yathunthu yosinthira ma arc kupondereza coil
Mu njira yosinthira ndi kugawa maukonde, pali mitundu itatu ya njira zosalowerera ndale, imodzi ndi gawo losalowerera ndale, linalo ndi gawo losalowerera ndale kudzera mu njira yoyambira ya arc kuponderezedwa, ndipo inayo ndi gawo losalowerera ndale kudzera pakukaniza. dongosolo grounding system.