Sekiangnshan scoetech complical co, ltd
30 MVA Transformer Bakeng sa Matla-33/6.6 kV|Afrika Boroa 2025
Matla: 30MVA
Matla: 33/6.6kV
Sebopeho: ka OLTC
E bolokehile ebile e ts'epahala, boleng bo tšoarellang, Power Transformer e matlafatsa motlakase ka matla a se nang moeli.
01 Kakaretso
1.1 Semelo sa Morero
Transformer ea matla ea 30 MVA e ile ea isoa Afrika Boroa ka April 2025. Matla a lekantsoeng a transformer ke 30 MVA e nang le pholiso ea ONAN. Matla a mantlha ke 33 kV ka +4(-12) *1.25% tapping range (OLTC), motlakase oa bobeli ke 6.6 kV, mme ba thehile sehlopha sa vector sa Dyn11.
Power Transformer e kopanya theknoloji e tsoetseng pele le ts'ebetso e tsotehang, e fana ka tšehetso e matla bakeng sa mekhoa ea morao-rao ea matla. E na le-load tap changer (OLTC), relay ea khase, sesupo sa mocheso o tsoelipanang, le sehatisi sa ho ts'oha, se etsang sistimi e felletseng ea ts'ebetso le netefatso ea polokeho.
The on-load tap changer (OLTC) e thusa ho lokisa motlakase ka nepo ntle le ho ama mojaro, ho netefatsa botsitso ba phetisetso ea motlakase ho khotsofatsa litlhoko tsa motlakase tse lulang li fetoha-. Sebaka sa ho tsamaisa khase se ikarabella bakeng sa-ho beha leihlo ka hare ho nako ea sebele, ho lemoha ka potlako lintho tse sa tloaelehang le ho fana ka litlhokomeliso, ho thibela ka katleho tšenyo ea thepa le likotsi tsa nako ea ho se sebetse. Ho boloka botsitso ba nako e telele-ea sesebelisoa, sesupo sa mocheso oa matsoelintsoeke se hlokomela mocheso oa maqhubu a transfoma, se thibela ho futhumala ho feteletseng ho tsoa ho senya lisebelisoa tsa ho pata, kahoo ho lelefatsa bophelo ba ts'ebeletso ea lisebelisoa. Ho sa le joalo, sehatisi se rekotang le ho sekaseka lits'oants'o tse amohetsoeng nakong ea lipalangoang kapa ts'ebetso, se thusa basebetsi ba tlhokomelo ho tseba le ho rarolla mathata a ka bang teng hanghang.
1.2 Tlhaloso ea Setsebi
Tlhaloso ea 30 MVA ea motlakase oa motlakase le leqephe la data
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E fetisetsoa ho
Afrika Boroa
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Selemo
2025
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Mohlala
30MVA-33/6.6kV
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Mofuta
Oli e Kentsoeng ka Matla Transformer
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Standard
IEC 60076
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Rated Power
30MVA
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Khafetsa
50 HZ
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Mokhahlelo
Boraro
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Mofuta oa ho Pholisa
ONA
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Matla a Matla a Phahameng
33kV
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Matla a tlase
6.6kV
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Lintho Tse Hlahang
Koporo
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Tšitiso
10%
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Tlanya Changer
OLTC
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Tlanya Range
+4(-12) *1.25%
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Ha ho Tahlehelo ea Mojaro
21.8KW
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Ho Lahleheloa ke Moroalo
160KW
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Lisebelisoa
Tlhophiso e Tloaelehileng
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Litlhaloso
N/A
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1.3 Litšoantšo
30 MVA sets'oants'o sa setšoantšo sa motlakase oa motlakase le boholo.
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02 Tlhahiso
2.1 Ntlha ea bohlokoa
Mokotla oa tšepe ke karolo ea bohlokoa ho sesebelisoa se seng le se seng sa matla, se sebetsang e le setsi sa potoloho ea sona ea makenete. E entsoe ka-matlapa a silicon a boleng bo holimo, a batang{2}a thethehileng a 0.3 mm kapa ka tlase ho moo, mantlha a sebetsa ka nepo{4}ho sebelisoa theknoloji e tsoetseng pele ea laser ho kopana le maemo a thata a boleng. Lipampiri li bokelloa ka mokhoa oa "mohato-lap", o fokotsang ho lutla ha manonyeletso, ho fokotsa tahlehelo ea matla le lerata la ts'ebetso. Ts'ebetso ena e tiisa sebopeho se matla se khonang ho mamella likhatello tsa mochini.
2.2 Ho tsubella
Li-coil windings ke likarolo tsa bohlokoa moralong oa li-transformer, tse netefatsang ts'ebetso e sebetsang hantle le botsitso ba mochini. Mapheo a phahameng-a matla a motlakase (HV) a na le sebopeho se sa khaotseng se nang le insulation ea karolo e ka hare, e matlafatsang tšireletso le ho fokotsa likotsi. Maqhubu a tlase-a matla a motlakase (LV) a sebelisa-matla kapa li-conductors tse fetotsoeng ho matlafatsa tsamaiso le ho fokotsa ho hanyetsa. Li kenyelletsa mekhoa ea ho pholisa e qobelletsoeng ho laola mocheso ka nepo le ho ntlafatsa bokhoni ba ho mamella-nako e khuts'oane, ho netefatsa ts'ebetso e tšepahalang tlas'a meroalo e feto-fetohang.
2.3 Tanka
Mokhoa oa ho etsa litanka tsa oli ea transfoma o kenyelletsa ho khetha-litšepe tsa boleng bo holimo{1}} tse matla, tse sehiloeng le ho kobeha hore li be sebopeho. Mekhoa e tsoetseng pele ea ho tjheseletsa e sebelisoa ho netefatsa botšepehi ba sebopeho le ho tiisa. Joale tanka e bokelloa ho matlafatsa matla, ka mapheo a ekelitsoeng ho ntlafatsa phallo ea mocheso. Kalafo ea bokaholimo e kenyelletsa pente e thibelang{5}}pente e senyang kutu, 'me tanka e etsoa liteko tsa ho tiisa le ho etsa liteko ho netefatsa hore ha e lutle.
2.4 Kopano ea ho Qetela
Ho Kena ha Maqhubu: Kenya li-winding tse phahameng-le tse tlase-li-voltage tse tlase bohareng, u sebelisa lisebelisoa ho thibela li-circuits tse khutšoane.
Kopano ea Tanka: Beha mantlha le mapheo ka tankeng ea oli e hloekisitsoeng, ho etsa bonnete ba ho koala hantle ho thibela ho lutla.
Ho kenya Sistimi ea Pholiso: Kenya li-radiator ho thusa ho pholisa hantle.
Kenyelletso ea lisebelisoa: Kenya On{0}}Load Tap Changer (OLTC), relay ea khase, sesupo sa mocheso o tsoelipanang, le transformer ea hajoale (CT), e netefatsang likhokahano tse tšepahalang.
Ho tlatsa le Vacuum Processing: Tlatsa tanka ea oli ka oli e sireletsang 'me u etse vacuum treatment ho tlosa moea.
03 Teko
1. Tekanyo ea Likhase Tse Qhobohileng ka Mokelikeling oa Dielectric Ho Tsoa Kamoreng e 'ngoe le e 'ngoe e Arohileng ea Oli Ntle le Diverter Switch
2. Tekanyo ea Voltage Ratio le Check Of Phase Displacement
3. Tekanyo ea ho Hanyetsa Maqhubu
4. Lekola Insulation ea Core le Frame bakeng sa Li-transformers tse qoelitsoeng tsa Mokelikeli tse nang le Insulation ea Core Kapa Frame
5. Tekanyo ea khanyetso ea DC Insulation Pakeng Tsa Moea o Mong le o Mong ho ea Lefatšeng le Pakeng tsa Maqhubu
6. Boikemisetso ba capacitances windings lefatšeng le pakeng tsa windings
7. Teko ea Voltage e sebelisitsoeng (AV)
8. Tekanyo ea Ha ho-Tahlehelo ea Mojaro le Hona Joale
9. E susumetsoang ke Voltage E Mamela Teko
10. Tekanyo ea-nako e Khutšoane ea Impedance le Tahlehelo ea Mojaro
11. Tekanyo ea likhase tse qhibilihisitsoeng ka har'a mokelikeli oa dielectric ho tsoa phaposing e 'ngoe le e 'ngoe e arohaneng ea oli ntle le phaposi ea diverter switch.
12. Teko ea ho Dutla ka Khatello Bakeng sa Mokelikeli-Immersed Transformers (Tightness Test)
04 Ho paka le ho Romela
05 Sebaka le Kakaretso
Qetellong, li-transformer tsa rona tsa motlakase li etselitsoe ho fana ka ts'ebetso e ikhethang, ts'epahalo, le ts'ebetso e nepahetseng bakeng sa lits'ebetso tse fapaneng. Ka theknoloji e tsoetseng pele le kaho e matla, li etselitsoe ho fihlela litlhoko tse batloang ke lits'ebetso tsa motlakase tsa sejoale-joale ha li ntse li netefatsa polokeho e nepahetseng le tšusumetso e fokolang ea tikoloho. Ka ho khetha li-transformer tsa rona tsa matla, u tsetela karolong ea bohlokoa e tla ntlafatsa lisebelisoa tsa hau tsa matla le ho kenya letsoho bokamosong bo tsitsitseng. Re u mema hore u hlahlobe mefuta e mengata ea lihlahisoa tsa rona 'me u fumane hore na litharollo tsa rona li ka khotsofatsa litlhoko tsa hau tsa matla joang ka katleho le ka nepo. Kea le leboha ka ho nka li-transformer tsa rona e le karolo ea bohlokoa ea ts'ebetso ea hau.
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