1500 KVA Lisebelisoa tsa Motlakase-5/0.48 KV|USA 2025

01 Kakaretso

1.1 Tlhaloso ea Morero

1500 kVA unit substation transformer e ile ea isoa USA ka 2025. Matla a lekantsoeng a transformer ke 1500 kVA le pholileng ea KNAN. Matla a phahameng ke 5D kV e nang le ± 2 * 2.5% tapping range (NLTC), motlakase o tlaase ke 0.48Y / 0.277 kV, ba thehile sehlopha sa vector sa Dyn1.

Liteishene tsa motlakase ke lisebelisoa tse tsamaisanang tsa motlakase tse kopanyang li-switchgear tsa mantlha, -sefetoleli sa motlakase sa mekhahlelo e meraro, le thepa ea bobeli ea ho ajoa hore e be kopano e le 'ngoe, e haufi{1}}e kopane. E etselitsoe ho theola motlakase oa motlakase ho ea maemong a loketseng-kabo ea meaho ea lipolante kapa ea khoebo, 'me e loketse lisebelisoa tsa kahare le kantle. Ka moralo oa eona o haufi{{5}o kopane, transformer e ka behoa haufi le setsi sa thepa, e fokotsa haholo bolelele ba lithapo le tsela ea libese, e leng ho fokotsang tahlehelo ea mela le ho pepesehela liphoso ha e ntse e ntlafatsa taolo ea motlakase le ts'ebetso ea ts'ebeletso. Ha ho bapisoa le mekhoa e tloaelehileng ea liteishene, sebaka sa eona sa compact footprint se boloka sebaka se seholo sa ho kenya, se fokotsa{7}litšenyehelo tsa ho haha ​​le ho palama setšeng, le ho theola{8}litšenyehelo tsa nako e telele{8}}ka ho lokisa ka lisebelisoa tse nolofalitsoeng. Transformer ea yuniti e lumellana ka botlalo le litekanyetso tsa ANSI, IEEE, le NEMA, e netefatsa khokahanyo e felletseng ea motlakase le mochini. E le khetho, transformer e ka tlatsoa ka FR3™ natural ester fluid-oli e ka nchafatsoang, ea meroho-oli{14}e thehiloeng ho dielectric e nang le sebaka se phahameng sa mollo le lisebelisoa tse ntle tsa tikoloho{15}}ha oli e tloaelehileng ea minerale e ntse e fumaneha bakeng sa lits'ebetso tse nang le litlhoko tse tloaelehileng. Ka ts'epo ea eona e phahameng, ts'ebetso, le tlhophiso e feto-fetohang, themochine oa motlakase oa motlakasee sebelisoa haholo litsing tsa indasteri, meahong ea khoebo, litsing tsa lisebelisoa, le marang-rang a bohlokoa a litšebeletso moo sebaka, polokeho le ts'ebetso li leng bohlokoa.

1.2 Tlhaloso ea Setsebi

1500 kV liteishene tse nyane tsa motlakase tsa mofuta le leqephe la data

1.3 Litšoantšo

1500 kVA sets'oants'o sa sets'oants'o sa liteishene tsa motlakase le boholo.

02 Tlhahiso

2.1 Ntlha ea bohlokoa

Core uses CRGO silicon steel, perfectly matched to 1500kVA, 5.0/0.48kV, Dyn1, 60Hz (no‑load loss 1.545kW, load loss 10.540kW). Design & manufacturing comply with IEEE C57.12.34-2022, C57.12.00-2021 & C57.12.90-2021. Tests confirm: max turns ratio deviation +0.16% (well below 0.5%), losses and impedance meet guaranteed values. Quality: five‑step step‑lap process reduces eddy losses and noise; core clamped and coated against moisture/rust. Highlights: step‑lap cuts no‑load current ~12% and transverse leakage >50%; 45℃mitered manonyeletso boreleli flux setataisi.

2.2 Ho tsubella

Ho tsoelipana ha HV ka lipompo tse 2 × 2.5% ha motho a kenya (lipompo tse 5), LV Y e hoketsoeng 480V/277V + e sa nke lehlakore. Liphetho tsa liteko (sheba tafole e ka tlase) li bonts'a LV ho hanyetsa ho se leka-lekane 1.11%, HV max ho se leka-lekane 0.80%; insulation resistance & magnetic balance kaofela li fetile. Boleng: koporo e hloekileng e phahameng, Class F (155 degree) insulation, vacuum vapour-phase drying. Lintlha-khōlō: moralo oa HV o tsoelang pele/o kenelletseng, mapheo a foil/helical LV, ho tiisa sekoahelo bakeng sa ho mamella potoloho e khutšoane.

Ntho ea Teko	Boleng bo Lekanyelitsoeng / Sephetho	Tlhokahalo e Tloaelehileng
HV winding resistance (tope 5)	0.0699Ω (3‑phase kakr.)	Ho se leka-lekane ho ka tlase ho kapa ho lekana le 1%
LV matsoelintsoeke ho hanyetsa	0.714/0.706/0.713 mΩ	Ho se leka-lekane 1.11%
Khanyetso ea ntlha ea LV e sa nke lehlakore	0.388/0.380/0.376 mΩ	Ho se leka-lekane 3.07%
Insulation resistance (HV-GND, joalo-joalo)	Feta	Sheba tlaleho
Teko ea ho leka-lekana ea magnetic	Li-voltage tse leka-lekaneng ka mohato	Ha ho leeme le sa tloaelehang

2.3 Tanka

Tanka e entsoeng ka li-stiffeners; e lekoa ka +50kPa le -67kPa. Liphello (sheba litafole): ka mor'a ho lokolloa, ho kheloha ka ho sa feleng Ka tlase kapa ho lekana le 0.03mm ho lintlha tsohle tsa 10, ha ho na tšenyo - liteko ka bobeli li fetile. Boleng: tšepe ea boemo bo holimo, tlhahlobo ea weld ea 100%, tlhahlobo e arohaneng ea khatello pele ho kopano. Lintlha-khōlō: moralo o ntlafalitsoeng oa likhopo, ho kenya mocheso o laoloang, moralo oa gasket khahlano le ho lutla ha oli le ho kenella ha mongobo.

Teko e ntle ea khatello (50kPa):

Teko ea Vacuum (-67kPa):

2.4 Kopano ea ho Qetela

Kopano: ho theola li-coil tsa mantlha, kalafo ea oli ea vacuum, ho kenya lihlahla / lisebelisoa, tlhophiso ea lead ea Dyn1. Liteko tse felileng (ka mor'a ho omisoa, pele ho tanka) kaofela li fetile: ho hanyetsa ho kenella, ho fetoha karo-karolelano (max dev. 0.16%), kamano ea karolo (Dyn1), ho hanyetsa matsoelintsoeke, impedance (5.75%), magnetic balance. Boleng: mohato o mong le o mong o rekotiloeng, mochini o hloekisang oli, ts'ebetso ea ho chenchela e netefalitsoe. Lintlha-khōlō: ho omisa le ho kenngoa ha vacuum, li-jigs tse nepahetseng bakeng sa ho tlosa tanka ea mantlha, torque-wrench e tiisang likhokahano tsohle.

03 Teko

Liteko li akaretsa ts'ebetso ea motlakase, mochini le ho kenya letsoho ho IEEE C57.12.00-2021 & C57.12.90-2021.

04 Ho paka le ho Romela

4.1 Ho paka

Mabokose a tloahelehileng a mapolanka, lehong le tšetsoeng mocheso la ISPM15 bakeng sa tumello ea meetlo ntle le ho tsuba. Ho tšepahala ho netefalitsoe ke tlhahlobo ea pele ho thepa le ketsiso ea vibrate. Boleng: maqhama a litsela tse tšeletseng + anti-slip pads (motsamao<2mm), cushioning material, moisture/rust protection. Highlights: centre of gravity & lifting points marked, 100% pre‑pack inspection, spare parts in same crate.

4.2 Ho tsamaisa thepa

Lipalangoang tsa leoatle/lefatse tse tsamaellanang le moo li eang; e ka latelloa ka konteraka le linomoro tsa serial. E latela Incoterms & melawana ya thomelontle; tlhahlobo ea pele ho thepa e khotsofatsa litloaelo. Ho tšepahala ho netefalitsoe ke ketsiso ea vibrate. Boleng: bopaki ba boemo ba leholimo "o seke oa fana ka maikutlo / ho theola", tlhahlobo ea ho kenya thepa, litokomane tse felletseng tsa thomello le COO. Lintlha-khōlō: Thepa e sebetsang hantle ka tikolohong, matšoao a ts'oenyeho liyuniting tse kholo, lenane la liphutheloana/lenane la boima ba 'mele / setšoantšo sa boholo se fanoeng.

05 Kakaretso

Ka kakaretso, setsi sena sa motlakase sa 1500kVA se fana ka ts'ebetso e ikhethang ea motlakase, ho tiea ha mochini, le ho lumellana ka botlalo le IEEE C57.12.34-2022. Ka tahlehelo ea mantlha le ea matsoelintsoeke e kopanang le litekanyetso tse netefalitsoeng, ho kheloha karohano ea motlakase ka tlase ho 0.2%, ho se leka-lekane ha moea ho tlase joalo ka 1.11%, le ho senyeha ho sa feleng ha tanka tlas'a liteko tsa khatello / vacuum e lekantsoeng ka Tlase kapa ho lekana le 0.03mm, e fana ka tharollo ea litšenyehelo tse tlase tsa bophelo. Teko e matla e phethiloeng le ea ho qetela - ho tloha ho ho hanyetsa mocheso ho ea ho tekanyo ea makenete le ho senyeha ha tanka - e netefatsa hore karolo e 'ngoe le e 'ngoe e tloha fekthering e le malala-a-laotsoe bakeng sa lisebelisoa tse hlokahalang.Khetha SCOTECHjoalo ka molekane oa hau eo u mo tšepang ho aha lisebelisoa tsa motlakase tse hlalefileng, tse tsitsitseng haholoanyane.