500 kVA Pad Mounted Transformer-13.2/0.48 kV|USA 2025

 

01 Kakaretso

1.1 Semelo sa Morero

Morero ona o kenyelletsa phepelo ea 500 kVA -pase ea mekhahlelo e meraro-mofetoleli o phahamisitsoeng oa phepelo, o etselitsoeng lisebelisoa tsa 60 Hz tse nang le motlakase oa mantlha oa 13.2 kV GrdY / 7620 V le motlakase oa bobeli oa 480 V. Transformer e na le pholiso ea ONAN (Oil Natural Air Natural), e ts'epahalang, e ts'epahaleng ea ho kena, le mokhoa oa ho kena ka pele oa loop. E hahiloe ka sehlopha sa li-vector tsa YNd1 'me e na le impedance ea 5.75%.

E entsoe ho latela maemo a sebetsang hantle a matla a DOE 2016, transformer e kentsoeng ka pad ea 500 kva e fana ka ts'ebetso e phahameng e nang le tahlehelo e tlase ea matla-5.75 kW ha ho na moroalo le tahlehelo ea boima ba 0.65 kW maemong a lekantsoeng.

Transformer ena ea 500 kVA 13.2 kV / 480 V three-phase three-mounted transformer e loketse kabo ea mahareng-voltage ho ea tlaase{6}}voltage libakeng tsa litoropo le litoropong. Lisebelisoa tse tloaelehileng li kenyelletsa:

• Baahi, ba fanang ka motlakase bakeng sa mabone, HVAC, le lisebelisoa tsa ka tlung

• Mehaho ea khoebo e kang liofisi, lisuphamakete le lirapa tsa mabenkele

• Lisebelisoa tsa liindasteri tse bobebe, tse matlafatsang-lisebelisoa tse nyane ho isa bohareng ba boholo le metjhini

• Litsi tse kang likolo le lipetlele li hloka matla a tšepahalang le a sireletsehileng

• Litsamaiso tsa kabo ea ka tlas'a lefatše, tse sebelisoang ho li-loop feed networks bakeng sa ts'epo e matlafalitsoeng le polokeho

Thepa ea eona-e phahamisoang,{1}}feed{1}, le e shoeleng-mohaho o ka pele o e etsa hore e tšoanelehe bakeng sa ho kengoa ka ntle kapa ka tlase{3}}moo ho leng bohlokoa hore ho be le sebaka, polokeho le phihlello.

 

1.2 Tlhaloso ea Setsebi

500kVA pad ea mekhahlelo e meraro e kentsoeng li-transformer le leqephe la data

 

1.3 Litšoantšo

500 kva pad mounted transformer specifications and data sheet

 

 

02 Tlhahiso

2.1 Konokono

Moetso-tlhano oa mantlha oa leoto o netefatsa litsela tse leka-lekaneng tsa makenete bakeng sa mekhahlelo eohle e meraro. Leha e le ka tlase ho lefela-mokhoa oa tatellano-joalo ka o bakoang ke-mola o le mong-ho-ho{6}}litšitiso tsa fatše{7}kapa nakong ea maemo a sa tsitsang a ho laela, matla a khoheli a ka phalla hantle maotong a mabeli a ka ntle. Sena se fokotsa ho tsilatsila ha makenete, se theola ho phahama ha mocheso, 'me se fokotsa ho thothomela.

Sebopeho sena se molemo haholo bakeng sa li-transformer tsa sehlopha sa YNd, kaha se fana ka tsela e hlakileng bakeng sa zero-ha ho naleli e hoketsoeng-ka lehlakoreng le phahameng{2}}ka lehlakoreng le phahameng la motlakase, kahoo e matlafatsa botsitso ba motlakase le ho ts'epahala ha sistimi.

 

2.2 Ho tsubella

 

2.3 Tanka

 

2.4 Kopano ea ho Qetela

 

 

03 Ho etsa liteko

Teko e Tloaelehileng le Tekanyetso ea Teko

1. Tekanyo ea Khanyetsano ea Insulation: IEEE C57.12.90-2021 Clause 10.11

2. Liteko tsa karo-karolelano: IEEE C57.12.90-2021 Clause 7; IEEE C57.12.00-2021 Clause 9.1

3. Teko ea Kamano ea Mokhahlelo: IEEE C57.12.90-2021 Clause 6

4. Litekanyo tsa Resistance: IEEE C57.12.90-2021 Clause 5

5. Ha ho Tahlehelo ea Moroalo le Ha ho Moroalo Hona Joale: IEEE C57.12.90-2021 Clause 8,IEEE C57.12.00-2021 Clause 9.3

6. Teko ea ho mamella Voltage e Ikemetseng: IEEE C57.12.90-2021 Clause 10.7

7. Litahlehelo tsa Meroalo, Matla a ho Impedance le katleho: IEEE C57.12.90-2021 Clause 9; IEEE C57.12.00-2021 Clause 9.2

8. Teko ea Voltage e sebelisitsoeng: IEEE C57.12.90-2021 Clause 10.6

9. Teko ea ho Dutla ka Khatello Bakeng sa Mokelikeli-Liphetoho Tse Kokotsoeng: IEC60076-1

Liphetho tsa liteko

Che.	Ntho ea Teko	Yuniti	Melao ea ho Amohela	Litekanyetso Tse Lekanyelitsoeng	Qetello
1	Litekanyo tsa ho hanyetsa	%	Sekhahla se phahameng sa ho hanyetsa ho se leka-lekane	2.29	Feta
2	Liteko tsa Karolelano	%	Phapang ea karo-karolelano ea motlakase ho theipi ea mantlha: Ka tlase ho kapa ho lekana le 0.5% Letšoao la khokahano: YNd1	-0.05% ~ -0.03%	Feta
3	Liteko tsa likamano tsa mohato-	/	YNd1	YNd1	Feta
4	Ha ho{{0}tahlehelo ea thepa le thabo ea hona joale	/	I0 :: fana ka boleng bo lekantsoeng	0.27%	Feta
			P0: fana ka boleng bo lekantsoeng(t:20 degree)	0.577kW
			mamello ea ho se lahleheloe ke moroalo ke +10%	/
5	Litahlehelo tsa tahlehelo ea matla a motlakase le katleho	/	T:85 likhato mamello bakeng sa impedance ke ± 7.5% mamello ea tahlehelo ea boima kaofela ke +6%	/	Feta
			Z%: boleng bo lekantsoeng	5.67%
			Pk: boleng bo lekantsoeng	4.032kW
			Pt: boleng bo lekantsoeng	4.609kW
			Katleho e seng ka tlase ho 99.35%	99.41%
6	Teko ea Voltage e sebelisitsoeng	kV	HV: 34kV 60s LV: 10kV 60s	Ha ho ho putlama ha motlakase oa liteko	Feta
7	Teko ea ho mamella Voltage e kentsoeng	kV	Matla a sebelisoang (KV): 2Ur	Ha ho ho putlama ha motlakase oa liteko	Feta
			Nako:48
			Hangata (HZ): 150
8	Leakage Test	kPa	Khatello e sebelisitsoeng: 20kPA	Ha ho na leakage le che Tšenyo	Feta
			Nako:12h
9	Tekanyo ea ho hanyetsa Insulation	GΩ	HV{{0}LV ho ea fatše :	21.5	/
			LV-HV ho ea fatše:	51.6
			HV&LV ho ea fatše	21.2

 

 

04 Ho paka le ho Romela

4.1 Ho paka

 

4.2 Ho tsamaisa thepa

Pele o kenya, lekanya boholo le boima ba transformer, 'me u rale tsela e qobang bophahamo, bophara le boima ba lithibelo. Sebelisa-libethe tse tlase kapa literaka tse khethehileng tse nang le bokhoni bo lekaneng.

Lokahanya setsi sa khoheli sa transformer le koloi. Sebelisa litšepe tsa kanale le mekhoa e nepahetseng ea ho tiisa ho tiisa motheo oa teraka, ha ho lumelleha. Sireletsa transformer ka likhoele kapa liketane ka likoti tse khethiloeng tsa lipalangoang, ho qoba likarolo tse senyehang joalo ka li-radiator le lihlahla. Notlela likarolo tse ka hare 'me u tiise mamati 'ohle.

Boloka lebelo Le ka Tlase kapa le lekana le 60 km/h mme o sekaseke Ka tlase ho kapa ho lekana le likhato tse 15 nakong ea lipalangoang. Qoba ho sisinyeha ka tšohanyetso le ho thothomela ho matla. Abela batho ba felehelitseng ho hlahloba hore na ba tlama hakae le ho emisa lipalangoang maemong a leholimo a mabe.

Ha u phahamisa, boloka li-angles tsa thapo Li le Ka tlase ho kapa li lekana le likhato tse 60. Sebelisa li-spreader bar ha ho hlokahala. Ka linako tsohle phahamisa u otlolohile, 'me bakeng sa li-unit tse se nang li-lugs tse holimo, sebelisa lithupa tse phahamisang tlase.

 

 

05 Sebaka le Kakaretso

Sefetoleli sena sa 500 kVA, 13.2 kV / 480 V-mohato-se phahamisitsoeng sa kabo{4} se na le sehlopha sa li-vector tsa YNd1, se fanang ka matla a mahareng-ho{7}}ho arola motlakase o tlase le matla a ho theola a etselitsoeng litsamaiso tsa motlakase tsa Amerika Leboea. Moetso oa eona-oa mantlha oa maoto o fokotsa zero{10}}mokhoa oa ho latellana, oa matlafatsa ts'ebetso le ho fokotsa ho thothomela.

E na le tanka ea oli e tiisitsoeng e bonolo le li-radiator-tse kentsoeng ka morao, e fana ka pholiso ea tlhaho e sebetsang hantle (ONAN) le{1}}e ts'epahalang nako e telele. Moralo o sa sebetseng{3}o etsa bonnete ba hore o hlokomeloa ka mokhoa o bolokehileng le o bonolo. Lehlakore la {{5}voltage e phahameng le kenyelletsa lihlahla tse tšesaane tsa 200A tse arohaneng le H0 neutral bushing, ha lehlakore le tlase-voltage le sebelisa resin{9}cast spade{10}mofuta oa lihlahla bakeng sa likhokahano tse sireletsehileng tsa lithapo. Lisebelisoa tsa ts'ireletso tse kang li-fuse tsa bayonet, -limiting fuses (CLF), le li-primary surge arresters li fana ka ts'ireletso e tšepahalang ea ho itšehla thajana le tšireletso ho overvoltage.

Lits'ebetso tse tloaelehileng li kenyelletsa phepelo ea motlakase o mahareng{{0}ho{1}}ho ea tlase{1}} libakeng tsa litoropo le litoropong joalo ka libaka tsa bolulo, litsi tsa khoebo, litsi tsa liindasteri tse bobebe, likolo le lipetlele, moo polokeho le ts'epehi e leng tsa bohlokoa. E boetse e loketse-bakeng sa litsamaiso tsa kabo ea lijo ka tlas'a lefatše-ho matlafatsa ts'epahalo ea phepelo.