Chitukuko chaukadaulo cha UHV AC Transmission and Transformation Equipment

Chida chamalipiro cha UHV

Pakumanga kwakukulu kwama projekiti okwera kwambiri, zida zoyambira ndizofunikira kwambiri.

Pofuna kulimbikitsa kupititsa patsogolo kwaukadaulo wa UHV AC, chitukuko chaposachedwa cha zida zazikulu

monga UHV AC thiransifoma, gasi insulated zitsulo enclosed switchgear (GIS), mndandanda wamalipiro chipangizo ndi chomangira mphezi ndi

mwachidule ndi kuyembekezera.

Zotsatira zikuwonetsa kuti:

Mtengo wololeka wa mphamvu yakumunda wamagetsi pomwe mwayi wothira pang'ono wa thiransifoma ya UHV ndi 1 ‰ udzasankhidwa ngati

mphamvu yamunda yololedwa;

Njira zowongolera kutayikira kwa maginito monga kutchingira maginito kumapeto kwa thupi, kutchingira kwamagetsi kwa thanki yamafuta, kutchingira maginito.

thanki yamafuta, ndi mbale yachitsulo yopanda maginito imatha kuchepetsa kutayikira kwa maginito ndi kutentha kwa 1500 MVA.

lalikulu mphamvu UHV thiransifoma;

Mphamvu yosweka ya UHV circuit breaker imatha kufika 63kA.Dongosolo loyeserera lopangidwa ndi "njira zitatu zoyendera" limatha kusweka

kudzera mu malire a zida zoyesera ndikumaliza mayeso osweka a 1100kV circuit breaker;

Ndizodziwikiratu kuti matalikidwe ndi ma frequency a VFTO ndi ochepa pokhazikitsa zoletsa zoziziritsa kukhosi pagawo lolumikizana la "vertical"

zolumikizira;

Poyang'ana momwe magetsi amagwirira ntchito mosalekeza, ndibwino kuti muchepetse voteji ya UHV arrester kufika 780kV.

Zamtsogolo za UHV AC zotumizira magetsi ndi zida zosinthira ziyenera kuphunziridwa mozama potengera kudalirika kwakukulu, mphamvu zazikulu,

mfundo yatsopano yogwirira ntchito komanso kukhathamiritsa kwa magawo.

UHV AC thiransifoma, switchgear, zida zolipirira zotsatizana ndi chomangira mphezi ndiye zida zazikulu zopatsira UHV AC.

polojekiti.Nthawi ino, tiyang'ana kwambiri pakukonza ndi kufotokoza mwachidule za chitukuko chamakono cha mitundu inayi ya zida.

Kupanga zida zolipirira za UHV

Chipangizo chamalipiro cha UHV chimathetsa mavuto otsatirawa: chikoka cha kugwiritsa ntchito chipukuta misozi pa

mawonekedwe a dongosolo, kukhathamiritsa kwa magawo ofunikira aukadaulo a chipukuta misozi, anti electromagnetic amphamvu

Kusokoneza mphamvu ya kuwongolera, chitetezo ndi njira yoyezera, mapangidwe ndi chitetezo cha banki ya super capacitor,

mphamvu yoyenda ndi kudalirika kwa magwiridwe antchito amtundu wa spark gap, mphamvu yotulutsa mphamvu komanso magwiridwe antchito apano

ya voltage limiter, kutsegulira mwachangu ndi kutseka kwa switch bypass, chida chonyowa, chingwe cha fiber

kapangidwe ka thiransifoma yamakono ndi nkhani zina zazikulu zaukadaulo.Pansi pazikhalidwe za voteji yapamwamba kwambiri, yopitilirapo kwambiri komanso yokwera kwambiri

mphamvu, vuto kuti angapo zizindikiro kiyi luso la mndandanda chipukuta misozi zida zazikulu kufika malire ntchito

zagonjetsedwa, ndipo zida zolipirira zolipirira kwambiri zamphamvu kwambiri zapangidwa, ndipo zonse zakwaniritsidwa.

kukhazikika.

Capacitor bank

Capacitor bank for series compensation ndiye chinthu chofunikira kwambiri kuti muzindikire mndandanda wamalipiro, ndipo ndi imodzi mwamakiyi.

zida za chipangizo cha chipukuta misozi.Chiwerengero cha ma capacitor olipira a UHV mu seti imodzi ndi mpaka 2500, 3-4 nthawi.

ya chipukuta misozi cha 500kV.Imayang'anizana ndi zovuta zingapo zolumikizana zofananira zamagawo a capacitor pansi pazikulu

chipukuta misozi.Chiwembu choteteza mlatho wa H-mlatho wapawiri chikuperekedwa ku China.Kuphatikizidwa ndi ukadaulo wapamwamba wama waya, imathetsa

vuto la mgwirizano pakati pa kukhudzika kwa kusalinganika kwamakono kwa ma capacitors ndi kulamulira kwa jekeseni mphamvu, komanso

imathetsa vuto laukadaulo la kuphulika kwa mabanki angapo a capacitor.Chithunzi cha bungwe ndi mawonekedwe a wiring schematic cha series capacitor

mabanki akuwonetsedwa pazithunzi 12 ndi 13.

Zithunzi 12 Capacitor bank

Zithunzi 13 Wiring mode

Pressure limiter

Poganizira zofunikira zodalirika zodalirika zolipirira mndandanda wa UHV, njira yofananira ndi resistor chip ndiyopadera.

kukhathamiritsa, ndipo shunt coefficient pakati pa mizati imachepetsedwa kuchokera 1.10 mpaka 1.03 pambuyo pafupifupi 100 resistor chip mizati pa gawo lililonse.

voteji limiter olumikizidwa mu kufanana (gawo lililonse resistor Chip chilumikizidwe mndandanda ndi 30 resistors).Kukakamizidwa mwapadera

Kutulutsa kumatengedwa, ndipo mphamvu yotulutsa mphamvu imafika 63kA / 0.2s pansi pa chivundikiro cha jekete la porcelain.

limiter unit ndi 2.2m kutalika ndipo mulibe arc separator mkati.

Kusiyana kwa Spark

Ma voliyumu ovoteledwa a spark gap wa chipukuta misozi cha UHV amafika 120kV, yomwe ndi yokwera kwambiri kuposa 80kV ya spark gap ya UHV.

chipukuta misozi;Kuthekera kwaposachedwa kumafikira 63kA/0.5s (mtengo wapamwamba 170kA), nthawi 2.5 kuposa kusiyana kwakukulu kwamagetsi.The

spark gap ili ndi machitidwe monga olondola, osinthika komanso okhazikika otulutsa magetsi, mphamvu yokwanira yonyamula

mphamvu (63kA, 0.5s), mazana a ma microseconds amayambitsa kuchedwa kutulutsa, kuchira mwachangu kwa kutchinjiriza kwakukulu (atadutsa 50kA/60ms

panopa, voteji kuchira pa mtengo wagawo kufika 2.17 pa interval wa 650ms), mphamvu maginito kusokoneza kukana, etc.

Series chipukuta misozi nsanja

Pulatifomu yolipirira yocheperako, yolemetsa, yolipirira ma seismic grade UHV yapangidwa, kupanga UHV yapadera yapadziko lonse lapansi.

mndandanda chipukuta misozi zoona mtundu mayeso ndi luso kafukufuku;Njira yowunikira katatu yamakina ndi mphamvu yakumunda yazovuta

zida zambiri zimakhazikitsidwa, ndipo mawonekedwe ophatikizika ndi dongosolo lothandizira la zida zamapulatifomu amtundu wa mabasi atatu okhala ndi zophatikizika

ndi mawonekedwe otsekera akulu akufunsidwa, omwe amathetsa zovuta za anti-seismic, kulumikizana kwa insulation ndi chilengedwe chamagetsi.

kuwongolera nsanja onenepa (200t);Gulu loyeserera la UHV lolipirira mtundu weniweni wapangidwa, lomwe lapanga lalikulu

Kulumikizana kwakunja kwa kutchinjiriza, corona ndi mphamvu yakumunda, kuyanjana kwamagetsi kwa zida zofooka zaposachedwa papulatifomu

ndi kuthekera kwina kwa mayeso a nsanja yolipirira, kudzaza zomwe palibe kafukufuku wa chipukuta misozi ya UHV.

Cholumikizira cha bypass ndi cholumikizira chodutsa

Chipinda chachikulu chozimitsira arc ndi makina ogwiritsira ntchito othamanga kwambiri adapangidwa, zomwe zidathetsa mavuto owongolera.

ndi mawotchi mphamvu ya 10m kopitilira muyeso yaitali insulated kukoka ndodo pansi mkulu-liwiro kanthu.Chosinthira choyamba cha SF6 porcelain mtundu wa bypass switch

yokhala ndi mawonekedwe a T idapangidwa, yokhala ndi 6300A yovomerezeka, nthawi yotseka ya ≤ 30ms, ndi moyo wamakina nthawi 10000;

Njira yowonjezerera chowotcha chothandizira cha vacuum pakulumikizana kwakukulu ndikusintha kwapano ndi mzati waukulu ikuperekedwa.Choyamba

cholumikizira chamtundu wotseguka chimapangidwa, ndipo mphamvu yosinthira pano imasinthidwa kukhala 7kV/6300A.

Kugwirizana kwa electromagnetic kwa zida zofooka zamakono papulatifomu

Mavuto aukadaulo monga kuwongolera kwakanthawi kopitilira muyeso pa nsanja yamalipiro ya UHV ndi kuyanjana kwa ma elekitiroma.

ofooka zida zamakono pansi kuthekera mkulu ndi kusokonezedwa amphamvu zagonjetsedwa, ndi mndandanda chipukuta misozi nsanja

makina oyezera ndi bokosi lowongolera la spark gap trigger lomwe lili ndi mphamvu zotsutsana ndi ma electromagnetic kusokoneza zakhala

otukuka.Chithunzi 14 ndi chithunzi cham'munda cha chipangizo cholipirira cha UHV.

Chida choyambirira chapadziko lonse lapansi cha UHV chokhazikika cholipirira chida chopangidwa ndi China Electric Power Research Institute

yakhazikitsidwa bwino mu projekiti yokulitsa ya projekiti yoyeserera ya UHV AC.Mphamvu yovotera ya chipangizocho

kufika 5080A, ndi mphamvu oveteredwa kufika 1500MVA (zotakataka mphamvu).Zizindikiro zazikulu zaumisiri zimayambira padziko lapansi.The

Kuthekera kwa projekiti yowonetsa mayeso a UHV kwawonjezeka ndi 1 miliyoni kW.Cholinga cha stable transmission 5

miliyoni kW ndi mzere umodzi UHV mizere yakwaniritsidwa.Mpaka pano, ntchito yotetezeka, yokhazikika komanso yodalirika yasungidwa.

Chithunzi 14 1000KV UHV Series Compensation Chipangizo