1500 KVA Electrical Substations-5 / 0,48 KV|AMẸRIKA 2025

01 Gbogbogbo

1.1 Project Apejuwe

1500 kVA unit substation transformer ti a jišẹ si USA ni 2025. Awọn ti won won agbara ti awọn transformer jẹ 1500 kVA pẹlu KNAN itutu. Iwọn giga giga jẹ 5D kV pẹlu ± 2 * 2.5% ibiti o tẹ ni kia kia (NLTC), foliteji kekere jẹ 0.48Y / 0.277 kV, wọn ṣẹda ẹgbẹ fekito ti Dyn1.

Awọn ibudo eletiriki jẹ awọn ẹrọ pinpin agbara iwapọ ti o ṣepọ awọn ẹrọ iyipada akọkọ, oluyipada agbara alakoso mẹta{{0}, ati ohun elo pinpin keji sinu ẹyọkan, sunmọ{1} apejọpọ. O ṣe apẹrẹ lati sọkalẹ awọn foliteji pinpin IwUlO si awọn ipele ti o dara fun ni- ọgbin tabi pinpin ile iṣowo, o si dara fun awọn fifi sori inu ati ita. Pẹlu apẹrẹ isunmọ -, a le gbe transformer si nitosi ile-iṣẹ fifuye, ni pataki idinku okun USB ati gigun ọkọ akero, eyiti o dinku awọn adanu laini ati ifihan si awọn aṣiṣe lakoko imudara ilana foliteji ati itesiwaju iṣẹ. Ti a fiwera si awọn ipilẹ ile ipilẹ ti aṣa, ifẹsẹtẹ iwapọ rẹ ṣafipamọ aaye fifi sori ẹrọ pupọ, dinku lori - awọn idiyele ikole aaye ati gbigbe, o si dinku awọn inawo itọju igba pipẹ{8} nipasẹ awọn ẹya ẹrọ irọrun. Oluyipada ipapopada ẹyọkan ni kikun ni ibamu pẹlu ANSI, IEEE, ati awọn iṣedede NEMA, ni idaniloju pipe itanna ati isọdọkan ẹrọ. Gẹgẹbi aṣayan, ẹrọ iyipada le kun fun omi ester adayeba FR3™ -isọdọtun, Ewebe{13}}epo{14}}dielectric orisun pẹlu aaye ina giga ati awọn ohun-ini ayika to dara julọ{15}}lakoko ti epo erupẹ ti aṣa wa fun awọn ohun elo pẹlu awọn ibeere boṣewa. Pẹlu awọn oniwe-ga dede, ṣiṣe, ati rọ iṣeto ni, awọnAmunawa substation kuroni lilo pupọ ni awọn ohun elo ile-iṣẹ, awọn ile iṣowo, awọn ile-iṣẹ ohun elo, ati awọn nẹtiwọọki amayederun pataki nibiti aaye, ailewu, ati iṣẹ ṣe pataki.

1.2 Imọ Specification

1500 kV itanna substations iru ati data dì

1.3 yiya

1500 kVA itanna substations aworan atọka ati iwọn.

02 iṣelọpọ

2.1 mojuto

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 ìyí mitered isẹpo dan ṣiṣan idari.

2.2 Yiyi

Yiyi HV pẹlu 2×2.5% lori-fifuye taps (5 taps), LV Y‑ so 480V/277V + didoju. Awọn abajade idanwo (wo tabili ni isalẹ) fihan aiṣedeede resistance LV 1.11%, aipin HV max 0.80%; idabobo resistance & oofa iwontunwonsi gbogbo koja. Didara: Ejò giga-mimọ, Kilasi F (iwọn 155) idabobo, igbale igbale-gbigbe ipo. Awọn ifojusi: lilọsiwaju/aṣapẹrẹ HV interleaved, bankanje/helical LV windings, fikun opin clamping fun kukuru-Circuit duro.

Nkan Idanwo	Idiwon Iye / Abajade	Standard ibeere
Atako yiyi HV (tẹ ni kia kia 5)	0.0699Ω (apapọ ‑ alakoso 3)	Aidogba ti o pọju Kere tabi dọgba si 1%
LV yiyi resistance	0.714/0.706/0.713 mΩ	Aini iwọntunwọnsi 1.11%
LV didoju ojuami resistance	0.388/0.380/0.376 mΩ	Aini iwọntunwọnsi 3.07%
Idaabobo idabobo (HV-GND, ati bẹbẹ lọ)	Kọja	Wo iroyin
Idanwo iwọntunwọnsi oofa	Iwontunwonsi foliteji fun igbese	Ko si ojuṣaaju ajeji

2.3 ojò

Tanki apẹrẹ pẹlu stiffeners; idanwo ni +50kPa ati -67kPa. Awọn abajade (wo awọn tabili): lẹhin itusilẹ, iyọkuro ayeraye Kere tabi dogba si 0.03mm ni gbogbo awọn aaye 10, ko si ibajẹ - awọn idanwo mejeeji kọja. Didara: irin giga, 100% ayewo weld, idanwo titẹ lọtọ ṣaaju apejọ. Awọn ifojusi: Ifilelẹ iha iṣapeye, igbewọle igbona alurinmorin iṣakoso, apẹrẹ gasiketi lodi si jijo epo & iwọle ọrinrin.

Idanwo titẹ to dara (50kPa):

Idanwo igbale (-67kPa):

2.4 ik Apejọ

Apejọ: mojuto-coil sokale, itọju epo igbale, bushing/ẹya ẹrọ fifi sori ẹrọ, Dyn1 iṣeto ni asiwaju. Awọn idanwo ologbele-opin (lẹhin gbigbe, ṣaaju ki o to tanki) gbogbo wọn kọja: resistance idabobo, ipin titan (max dev. 0.16%), ibatan alakoso (Dyn1), resistance yikaka, ikọlu (5.75%), iwọntunwọnsi oofa. Didara: igbesẹ kọọkan ti o gbasilẹ, fidi epo-afẹfẹ, iṣiṣẹ oluyipada tẹ ni kia kia. Awọn ifojusi: igbale gbigbẹ & impregnation, awọn jigi konge fun imukuro ojò mojuto, iyipo-wrench didi ti gbogbo awọn asopọ.

03 Idanwo

Awọn idanwo bo itanna, ẹrọ & iṣẹ idabobo fun IEEE C57.12.00-2021 & C57.12.90-2021.

04 Iṣakojọpọ ati Sowo

4.1 Iṣakojọpọ

Awọn apoti igi ti aṣa, ISPM15 igi itọju ooru fun imukuro aṣa laisi fumigation. Ijẹrisi igbẹkẹle nipasẹ iṣayẹwo iṣaju iṣaju & iṣeṣiro gbigbọn. Didara: didi ọna mẹfa + awọn paadi isokuso (iṣipopada<2mm), cushioning material, moisture/rust protection. Highlights: centre of gravity & lifting points marked, 100% pre‑pack inspection, spare parts in same crate.

4.2 Gbigbe

Gbigbe okun/ilẹ ti baamu si ibi-ajo; traceable nipasẹ guide & ni tẹlentẹle awọn nọmba. Tẹle awọn ilana Incoterms & okeere; Ayewo iṣaju iṣaju ṣe itẹlọrun awọn aṣa. Igbẹkẹle ti a fọwọsi nipasẹ kikopa gbigbọn. Didara: ẹri oju-ọjọ "maṣe tẹ/ju silẹ" awọn aami, ayewo ikojọpọ, awọn iwe aṣẹ gbigbe ni kikun & COO. Awọn ifojusi: awọn ohun elo ore-aye, awọn afihan mọnamọna lori awọn iwọn nla, atokọ iṣakojọpọ / atokọ iwuwo / iyaworan iwọn ti a pese.

05 Akopọ

Ni akojọpọ, awọn ile-iṣẹ itanna 1500kVA yii n pese iṣẹ itanna alailẹgbẹ, agbara ẹrọ ti a fihan, ati ibamu ni kikun pẹlu IEEE C57.12.34-2022. Pẹlu mojuto ati awọn adanu yikaka ti o ni ipade awọn iye iṣeduro, iyapa ipin foliteji ni isalẹ 0.2%, aibikita resistance iyipo bi kekere bi 1.11%, ati ibajẹ ayeraye labẹ titẹ / awọn idanwo igbale ti o ni opin si Kere ju tabi dogba si 0.03mm, o funni ni igbẹkẹle, ojutu idiyele idiyele igbesi aye kekere. Ipari ologbele-pari ati idanwo ikẹhin - lati idabobo idabobo si iwọntunwọnsi oofa ati abuku ojò - ṣe idaniloju gbogbo ẹyọ kuro ni ile-iṣẹ ti ṣetan fun awọn ohun elo iwulo.Yan SCOTECHbi alabaṣepọ rẹ ti o gbẹkẹle lati kọ ijafafa kan, awọn amayederun itanna resilient diẹ sii.