Tataiso ea Ts'ebetso ea Transformer ea Substation

 

 

 

 

Li-transformer ke likarolo tsa bohlokoa lits'ebetsong tsa phepelo ea motlakase, tse etselitsoeng ho theola maemo a motlakase bakeng sa ts'ebeliso e bolokehileng lits'ebetsong tsa indasteri, tsa khoebo le tsa bolulo. Li-transformer tsena li reretsoe ho kengoa ho-mekhahlelo e meraro, 'me li ka hlomelloa hore li kenelle ka tlung kapa ka ntle holim'a liphaephe tsa konkreite, tse nang le lithapo tse phahameng- le tse tlase{3}} tse kenang ka lihlahla tse ka har'a liphaposi tse sebetsang. Tataiso ena e kopanya mekhoa e metle bakeng sa ho kenya, ho sebetsa, le ho hlokomela li-transformer tsa mofuta oa-.

Tataiso ena e reretsoe litheknishiene tse hloahloa tse tsebang hantle indasteri-mekhoa le mekhoa e amohelehang ea ho sebetsa{1}} le e tlase- ea ts'ebetso e sireletsehileng ea motlakase. Ke basebetsi ba nang le litsebo feela ba lokelang ho kenya, ho sebetsa, kapa ho fana ka thepa ena. Litsebi tse hloahloa li tlameha ho koetlisetsoa tlhokomelo le tšebeliso ea lisebelisoa tsa ts'ireletso, ho kenyeletsoa liaparo tsa arc flash, likhalase tsa tšireletso, lithebe tsa sefahleho, likatiba tse thata, liatlana tsa rabara, lithupa, le lithupa tse chesang{5}}.

 

 

 

 

 

 

2.1 Maemo a Tšireletseho le Melawana

• IEEE C57.12.00- Litlhoko tse akaretsang bakeng sa kabo e qoelisoang ka metsi, matla, le ho laola li-transformer.
• IEEE C57.12.34- Litlhokahalo tsa li-transformer tse phahamisitsoeng ka pad-mountment, compartmental-mofuta, tse itšebetsang tsa mekhahlelo e meraro (Ka tlase kapa ho lekana le 10 MVA, HV Ka tlase kapa e lekanang le 34.5 kV).
• NEC Article 450- Litlhoko tsa ho kenya le ho sireletsa mollo bakeng sa li-transformer.
• Temana ea 480 ea NEC- Litlhoko tsa ho theha le ho kopanya.
• OSHA 1910.269- Phepelo ea motlakase, phetiso le kabo ea motlakase; e hloka feela basebetsi ba nang le litsebo ho sebetsa le ho hlokomela lisebelisoa tsa seteishene.
• NFPA 70E (2024)- Arc flash le polokeho ea motlakase mosebetsing.

 

2.2 Litlhaloso tsa Polelo ea Kotsi

Lentsoe la Pontšo	Tlhaloso
KOTSI	Boemo bo kotsi bo haufi - haeba bo sa qojoe, bo tla fella ka lefu kapa kotsi e mpe.
TLHOKOMELO	Boemo bo ka bang kotsi - haeba bo sa qojoe, bo ka baka lefu kapa kotsi e mpe.
TLHOKOMELO	Boemo bo ka bang kotsi - haeba bo sa qojoe, bo ka baka kotsi e nyane kapa e itekanetsengkapatšenyo ea thepa (maemo a mabeli).

 

2.3 Litaelo tse akaretsang tsa polokeho

• Matla a matla a kotsi a tla baka lefu kapa kotsi e mpe ea motho. Latela mekhoa eohle ea tšireletso e amohelehang sebakeng sa heno.
• Pele o kenya, o sebetsa, kapa o hlokomela lisebelisoa, bala le ho utloisisa bukana. Ts'ebetso e sa nepahalang, ho ts'oaroa kapa tlhokomelo e sa lokelang ho ka baka lefu, kotsi le tšenyo ea lisebelisoa.
• Thepa ena eesenge reretsoeng ho sireletsa bophelo ba motho.
• Thepa ea kabo ea motlakase e tlameha ho khethoa ka nepo bakeng sa ts'ebeliso mme e kenngoe / e sebeletsoe ke basebetsi ba nang le bokhoni.

 

2.4 Mehato ea Tlhokomeliso ea Polokeho ea Pele ho Kemiso

• Fokotsa matla a transformer ho tsoa mohloling o hole o ka holimo ho noka pele o qala mosebetsi.
• Theha lipotoloho tsohle pele u etsa khokahano ea transformer.
• Sebelisa thupa e chesang ho sebelisa lisebelisoa tsa ho senya li-transformer. Netefatsa li-voltages tsa terminal ka mor'a ts'ebetso.

 

 

 

 

 

 

 

3.1 Litokomane le Netefatso

Ha u fumana transformer, bokella litokomane tsohle tse amanang le thomello, ho kenyelletsa le litokomane tsa thomello, litšoantšo, le lintlha tse ling tse nepahetseng bakeng sa ho laolla le ho sebelisoa. Hlakola-sesebediswa ka tjhelete ya ho rorisa. Netefatsa hore lintlha tsa nameplate li hokahane le lintlha tsa odara, ho kenyeletsoa lintlha tsa kVA, lintlha tse phahameng- le tse tlase{4}}le maqhubu a motlakase.

 

3.2 Tlhahlobo ea Kantle

Pele o laolla transformer, etsa tlhahlobo e phethahetseng:

• Etsa bonnete ba hore likarolo tsohle tse thathamisitsoeng pampiring ea thepa li teng.
• Lekola bokantle ba yuniti bakeng sa matšoao a tšenyo ea kantle nakong ea leeto.
• Hlahloba sehatisi sa tšusumetso haeba se na le lisebelisoa.
• Sheba bopaki ba ho lutla ha mokelikeli ka tankeng, li-valve kapa li-asembli tsa pholileng.
• Sheba lihlahla tse senyehileng.
• Etsa teko ea khatello ea tanka haeba yuniti e bala zero holim'a tekanyo ea khatello.
• Netefatsa hore litlhaloso tsa nameplate-ho kenyeletsoa le KVA,{1}}reite ea matla a holimo,{2}}reite ea matla a tlase, le impedance{3}}li tsamaellana le lintlha tsa odara.

Haeba tšenyo leha e le efe e fumanoa kapa khaello e hlokomeloa, hlokomela tlhaloso e khutšoanyane ea sekoloto sa thepa. Li-transformer hangata li romelloa sebakeng sa tlhahiso sa FOB, 'me ke boikarabello ba moreki ho kenya tleleime khahlanong le mofani oa thepa. Haeba transformer e rometsoe sebakeng sa FOB, tsebisa moemeli oa feme ea hau.

 

3.3 Netefatso ea Khatello

Tekanyo ea khatello ea tanka e lokela ho bontša khatello e ntle kapa e mpe ha e amoheloa. Ha nako e ntse e ea, khatello e ntseng e phahama kapa e theoha e bontša hore tanka e tiisitsoe hantle. Haeba tekanyo ea khatello e bonts'a khatello e tsitsitseng ea zero, tanka e ka 'na ea lutla. Maemong a joalo, hlahloba tanka le li-valve tsa khatello hang-hang bakeng sa ho lutla.

 

 

 

 

 

 

 

 

4.1 Ho phahamisa le ho Riging

Sebelisa crane ho phahamisa li-transformer tsa seteishene. Ho fanoe ka lihoko tsa ho phahamisa haufi le bokaholimo ba tanka ea transformer{1}tsena ke tsona feela libaka tsa ho hokela tse lokelang ho sebelisoa ho phahamisa. Ho phahamisa transformer ho tloha lintlheng tse ling ho transformer ha hoa sireletseha.

Litlhoko tsa bohlokoa tsa ho phahamisa:

• Se lumelle ho sekama ho feta likhato tse 15 ho tloha ho tsepameng.
• Li-angles tsa ho hula lithapo ha lia lokela ho feta likhato tse 30 ho tloha holimo. Sebelisa mekoallo ea li-spreader ho boloka li-slings li batla li otlolohile ho fokotsa monyetla oa ho senyeha ha tanka kapa ho senya pente.
• Le ka mohla u se ke ua phahamisa likhoele ho tloha hokong e 'ngoe ho ea ho e 'ngoe. Leqhoele le le leng kapa ketane e lokela ho khethoa ho hook e 'ngoe le e 'ngoe.
• U se ke ua phahamisa transformer ka forklift kaha ho tsitsisa boima ho ka baka kotsi ea polokeho.
• Se ke oa hokela lithapo tsa ho phahamisa li-radiator kapa libakeng tse ling tse ho lisebelisoa.
• Sheba boima ba transformer joalo ka ha ho boletsoe ho nameplate pele u phahamisa.

 

4.2 Jacking, Skidding, le Rollers

Haeba transformer e ke ke ea phahamisoa ke crane, e kanna ea thellisoa kapa ea tsamaisoa ka lirolara:

• Sebelisa feela liphaephe tsa jacking tse fanoeng ka tanka. U se ke ua sebelisa li-radiator kapa karolo leha e le efe ea transformer ho jack transformer sebakeng, kaha sena se ka lebisa tšenyo e sa feleng ea ho lutla ha transfoma le oli.
• Netefatsa hore bonyane ho sebelisoa li-jack tse peli le hore likhutlo tse peli tse bapileng li phahamisoe ka nako e le 'ngoe le ka ho lekana ho qoba ho sotha motheo.
• Li-jack li ka beoa lihukung tsa setsi sa transformer{{0}le ka mohla li se ke tsa beoa ka tlas'a li-cool assemblies, li-valve kapa likarolo tsa sheet metal.
• Ha u sebelisa li-roller, sebelisa tse ngata kamoo ho hlokahalang ho aba boima ka mokhoa o ts'oanang. Boholo ba roller bo tlameha ho khona ho tšehetsa boima ba transformer.
• Ho hula, hokela melapo e hulang masobeng a motheong o mong le o mong oa transformer. Se ke oa hokela lithapo tse hulang linthong tse entsoeng ka tšepe kapa likarolo tse ling tsa tšepe.

 

4.3 Maikutlo a ho Ts'oara ka Khethehileng

Litlhokomeliso tse ling li tlameha ho nkoa ha u sebetsana le li-transformer maemong a mocheso a ka tlase ho 0 degrees (32 degrees F). Maemong a joalo, li-transformer insulating fluid li ka 'na tsa e-ba le viscosity e eketsehileng, e ka amang ho sebetsana le ts'ebetso e latelang.

 

 

 

 

 

 

 

 

5.1 Polokelo ea Nako e Khutšoane-(Matsatsi a 90 kapa ka tlase ho moo)

Nako le nako ha ho khoneha, transformer e lokela ho bolokoa sebakeng sa eona sa ka ho sa feleng. Bakeng sa polokelo ea nako-ea nakoana:

• Boloka li-transformer sebakeng se hloekileng, se omileng le se sireletsehileng.
• Sebaka sa polokelo ha sea lokela ho ba le liphetoho tse feteletseng tsa mocheso.
• Sheba mokelikeli o sireletsang matla a dielectric.
• Boloka transformer ka holimo, e sa feteng likhato tse 4 tsa ho sekama.
• Transformer ha ea lokela ho bolokoa ka pel'a likhase tse senyang (mohlala, chlorine).

 

5.2 Polokelo ea Nako e telele-(Matsatsi a fetang 90)

Bakeng sa polokelo e fetang matsatsi a 90, etsa tlhahlobo ea nako le nako ho netefatsa hore lisebelisoa li lula li le maemong a matle:

• Hlahloba likoahelo tse sireletsang lihlahla; li nkele sebaka haeba li senyehile.
• Rekota mokelikeli-boemo le khatello ea maikutlo.
• Lekanya le ho tlaleha mocheso oa moea o tikolohong.
• Bakeng sa li-unit tse nang le kobo e omeletseng ea naetrojene, hlahloba le ho kenya lipakete tsa desiccant ka har'a lik'habote tsa taolo le likamore tsa ho qetela tsa moea nakong ea nako ea tlhokomelo e tloaelehileng.

 

5.3 Litlhokomelo tsa Polokelo

• Le ka mohla u se ke ua boloka transformer holim'a li-jack kapa ho thibela nakoana.
• Le ka mohla u se ke ua boloka transformer holim'a li-roller.
• Le ka mohla u se ke ua boloka seteishene haufi le moo ho nang le mongobo o mongata, letsoai, kapa likhase tse senyang moeeng.
• Libaka tse ka ntle tsa transformer li lokela ho bolokoa khahlanong le mafome le ho senya.
• Bakeng sa li-radiator tse senyehang tse bolokiloeng ka thoko, menyetla ea li-radiator e romelloa ka li-caps tsa nakoana tse sireletsang. Netefatsa hore likatiba tsena tse sireletsang li tiisitsoe pele li bolokoa. Le ka mohla u se ke ua boloka likopano tsa radiator fatše kapa moo li ka kolobang.

Pele o kenya transformer ts'ebetsong ka mor'a ho boloka nako e telele, hlahloba li-fan, alamo le li-circuits tsa taolo, le matla a dielectric a mokelikeli o sireletsang.

 

 

 

 

 

 

 

6.1 Sebaka sa Kemiso le Motheo

Transformer e lokela ho behoa holim'a letlapa la konkreite la matla a lekaneng ho tšehetsa boima ba yuniti joalokaha ho bontšitsoe ho nameplate. Tokiso e nepahetseng ea sebaka ke ea bohlokoa bakeng sa bophelo bo bolelele ba transfoma-sebaka se lokisitsoeng hantle{2}}se ka eketsa nako ea bophelo ba transfoma ka 25%.

Litlhoko tsa ho kenya:

• Letlapa le tlameha ho ba le lekaneng, le boreleli, le bataletse, 'me le be le boholo bo nepahetseng ho koahela sebaka sa phaposi. Ha ho likheo tse lumelloang pakeng tsa phaposi le pad.
• Transformer e tlameha ho lula e otlolohile ka bokaholimo bo otlolohileng ba pad. Beha transformer ka mokhoa o sireletsehileng holim'a pad.
• Transformer e tlameha ho kenngoa e le hore e se ke ea sekamela ho feta likhato tse 4. Ha li sekamisitsoe ho feta likhato tse 4, lithapo tsa ka hare, li-fuse, li-switches, core, le li-coil li ka 'na tsa se ke tsa lula li qoelisoa ka ho feletseng ka mokelikeli oa dielectric, tse ka bakang ho hlōleha ha dielectric kapa mathata a pholileng a lebisang ho chesa le ho fokotsa bophelo ba tšebeletso.
• Ho tlameha ho be le sebaka sa bonyane ba maoto a mabeli (hoo e ka bang 600 mm) ho pota-pota pherimitha ea transformer.
• Bakeng sa lits'ebetso tsa ka tlung, li-inlets tsa moea tsa phaposi li lokela ho beoa mokatong o nang le liphahlo tse phahameng ka hohle kamoo ho ka khonehang. Fana ka sebaka se ka bang lisekoere-mithara tse 20 sebakeng se seng le se seng sa sebaka sa ho kena le sa ho tsoa ka 1000 kVA ea matla a transformer. Haeba tsamaiso ea moea e khona ho feto-fetoha, e lokela ho notleloa e butsoe ka ho sa feleng ho qoba mocheso o feteletseng nakong ea phoso ea opareitara.
• Ho kenngoa libakeng tse senyang ka letsoai kapa lik'hemik'hale ho lokela ho qojoa, kaha tsena li baka ho senyeha ha pente e sireletsang 'me li lebisa ho bola ha tšepe e bonolo.

Li-transformer tsena li etselitsoe ho sebetsa sebakeng se bophahamo ba limithara tse 3300 (hoo e ka bang limithara tse 1000) ka karolelano ea likhato tse 30 le mocheso o phahameng oa likhato tse 40, ntle le ha ho boletsoe ka tsela e 'ngoe. Ikopanye le moetsi pele o sebelisa transformer e tloaelehileng libakeng tse phahameng.

 

6.2 Ho beha fatše

Theola transformer ka ho sa feleng ho latela maemo a lehae le a naha. Sebaka se sireletsehileng le se sebetsang{1}} sa khanyetso se bohlokoa bakeng sa tšireletso:

• Hokela thapo e boima ea fatše letlapeng la fatše le ka tlaase ho tanka.
• Haeba transformer e etselitsoe ho sebetsa ka mokhoa o tiileng oa ho se nke lehlakore, khokahanyo e sa nke lehlakore e lokela ho ba e tiileng le e tsitsitseng ka ho sa feleng le ho hanyetsa bonyane.
• Netefatsa hore ka linako tsohle ho na le khokahanyo e nepahetseng-e nang le mathata a fokolang.

OSHA 29 CFR 1910.269(l)(11) e hloka hore likarolo tsa tšepe{{3}tseo{4}}tse seng li jara{4}}tse sebelisoang hona joale (joalo ka li-transformer case) li tšoaroe ka matla a phahameng ka ho fetisisa ao li hlahisoang ho tsona ntle le haeba mohiri a hlahloba kemiso ebe a tiisa hore likarolo tsena li theiloe hantle pele mosebetsi o qala.

 

6.3 Likhokahanyo tse Phahameng{1}} tsa Motlakase

{{0}matla a holimo a matla a matla a 2.4 kV ho ea holimo a atisa ho kenngoa ka lebota la tanka ho sebelisoa epoxide resin kapa porcelain bushings.

Litlhoko tsa khokahano:

• Sebelisa feela likhokahano tse feto-fetohang ho li-terminals tsa bushing ho thibela ho kenya letsoho ho feteletseng.
• Le ka mohla u se sebelise bushing joalo ka setho sa moralo ho ts'ehetsa likarolo tse ling tsa-tse sebetsang.
• Lihokelo tsohle li tlameha ho ts'oaroa ka nepo ho qoba mocheso o feteletseng kapa ho baka ho hloleha ha khokahano. Sheba litafole tsa torque tsa moetsi bakeng sa boleng bo itseng.
• Etsa bonnete ba hore libaka tsa ho nyalana ha lihokelo ha li na litsupa le lithōle.
• Qoba khatello e feteletseng ea lithapo tsa lithapo tse tsoang ho li-cableweight tse boima tse phahameng- le tse tlase{1}}li-voltage bushings le busbar. Khatello e feteletseng ea li-cantilever e ka lebisa ho hloleheng ha bushing le ho lutla ha dielectric fluid.
• Lits'oants'o tsa lehalima tsa litekanyetso tse nepahetseng li lokela ho ba haufi le ho felisoa ha transformer ka hohle kamoo ho ka khonehang.

 

6.4 Tlase-Likhokahano tsa Motlakase

Hangata, liteishene tsa liteishene li tla ba le litheminale tsa likharafu. Hokela likhoele ka tlase ho lihlahla tsena ho fokotsa khatello ea li-cantilever ho senya sehlahla. Palo ea li-connectors tse feto-fetohang li lokela ho khethoa ke tekanyo ea hona joale ea transformer, eseng ka tekanyo ea hona joale ea bar ea libese.

 

6.5 Likhokahanyo Litlhokahalo Kakaretso

Lihokelo tsohle li tlameha ho etsoa ntle le ho beha khatello e sa hlokahaleng holim'a li-bushing terminals. Li-conductors li lokela ho tlamelloa sebakeng se sireletsehileng 'me li tšehelitsoe ka nepo, ho lumelletsoe ho atolosoa le ho honyela. Likhokahano tsa Tap li tlameha ho fetoloa FEELA ha li-circuits tse phahameng-le tse tlase{3}}li se li feletsoe ke{4}}matla. Netefatsa ka mokhoa o sireletsehileng hore ha ho na voltage e teng li-terminals pele u tsoela pele.

Li-transformer tse nang le liboto tsa li-terminal tsa ka hare hangata li romelloa ka motlakase o phahameng o hoketsoeng, ntle le haeba moreki a boletse ka tsela e 'ngoe.

Ha likhokahano tsa alamo kapa li-control li fanoa ka lisebelisoa tsa transformer, ho ka fanoa ka lebokose la khokahanyo ho thusa ho felisoa ha thapo ea bareki kapa conduit.

 

6.6 Mokelikeli oa Dielectric

Transformer e omisitsoe ka ho feletseng fekthering 'me e romelloa ka metsi a sireletsang metsi (ebang ke oli ea diminerale, ester fluid ea tlhaho, kapa dielectric tse ling tse amohelehang) ho ea boemong bo nepahetseng. Mokelikeli oa dielectric o lokela ho ba le bonyane matla a dielectric a 30 kV ha a le ncha, a lekoa ho latela ASTM D-877.

Mefuta ea li-insulating fluid tse sebelisoang hangata e kenyelletsa:

• Oli ea Liminerale: Oli ea transformer e sebelisoang ka ho fetisisa, e fanang ka matla a phahameng a dielectric (30-50 kV) le ho senya mocheso o motle, empa ka ho chesa ho phahameng le ho ameha ka tikoloho.
• Natural Ester Fluid: Ke dielectric{{0}e thehilweng ka moroho e kgonang ho bola, e se nang{{1}chefo,' me e thibelang mollo-, e mamellang mongobo o phahameng le ho fokotsa oxidation.

Maemo: Mocheso o tloaelehileng oa ho sebetsa bakeng sa mokelikeli oa dielectric hangata ke likhato tse 25. Qoba ho matlafatsa mocheso o tlase moo boemo ba mokelikeli bo ka pepesang likarolo tsa bohlokoa tsa kahare. Sebetsa yuniti feela ka har'a lintlha tse boletsoeng ho nameplate.

 

6.7 Khatello ea Transformer

Transformer e romelloa ka khatello e ntle ea hoo e ka bang +2 ho ea ho +3 PSIG ea naetrojene e omileng ho tsoa fekthering e boemong ba leoatle. Ka lebaka la ho fetoha ha mocheso le bophahamo, khatello e ka fapana haholo nakong ea ho pepa.

Lintlha tsa bohlokoa tsa khatello:

• Transformer e lokela ho fetisetsoa moeeng pele e kenngoa ts'ebetsong feela ha e le tlas'a khatello e feteletseng.
• Bophahamo ba oli bo tla theoha hoo e ka bang 1/2 inch bakeng sa ho theoha ho hong le ho hong ha mocheso ka likhato tse 10-sena hangata se tla etsa hore tanka e be le moea o fokolang, 'me ke ntho e tloaelehileng.
• Se ke oa lumella tanka ho feta vacuum e fetang 3 PSIG (negative 3 PSIG), kaha tanka e tla holofala. Se ke oa lumella tanka ho feta khatello e fetang 5 PSIG. Ho sotha ha tanka ho qala ka holimo ho khatello ea 7 PSIG.
• Se ke oa eketsa naetrojene ho transformer e batang ho e khutlisetsa khatellong e ntle. Ho etsa joalo ho ka baka ho feta-khatello le tšenyo ea transfoma ha mocheso oa oli o nyolohela maemong a tloaelehileng. Khatello ea mocheso oa likhato tse 25 tsa oli e lokela ho ba lipakeng tsa 0.5 le +1.0 PSIG.

Ha u ntša khatello ea transformer, bula valve ea liphallelo. Hlahisa transformer feela ha mocheso oa oli o ka ba likhato tse 25. Se ke oa nka mohlala oa oli ha khatello ea transformer e le ka tlase ho 0 PSI.

 

 

 

 

 

 

 

Pele o matlafatsa transformer, tlhahlobo e felletseng ea-ea matla e tlameha ho phethoa. Litlhahlobo le liteko tsa pele- tsa matla le liteko li lokela ho etsoa feela ke litsebi tse ngolisitsoeng ka molao tse nang le lisebelisoa tse loketseng tsa polokeho le tlhahlobo.

 

7.1 Litlhahlobo le Liteko tse Hlokehang

A. Teko ea Transformer Turns Ratio (TTR).: Etsa tlhahlobo ea karo-karolelano ho netefatsa tekanyo ea mantlha-ho{1}}ea bobeli. Teko ea TTR e fana ka sesupo sa bophelo bo botle ba li-transformer ka ho hlahloba karo-karolelano ea ho reteleha ho tloha sebakeng se phahameng-matsoeli a motlakase ha a bapisoa le a tlase{4}}matsoelo a motlakase. Sena se ka bonts'a li-circuits tse bulehileng kapa likhokahano tse phahameng- tse hanyetsanang.

B. Teko ea ho Resistance ea Insulation (Megger): Etsa tlhahlobo ea li-volt tse 1000 ho lekanya ho hanyetsa ha mohatsela pakeng tsa matsoelintsoeke le ho tloha mokhoeng o mong le o mong ho ea fatše. Teko ena e lokela ho etsoa pele e kenya transformer ts'ebetsong le ka linako tse itseng nakong eohle ea bophelo ba eona. Li-insulators tsa Bushing li tlameha ho hloeka le ho omella pele li hlahlojoa, kaha litšila le mongobo li ka ama ho bala.

C. Tlanya Setting ea Changer: Etsa bonnete ba hore mochine oa ho fetola pompo o behiloe ho boemo bo nepahetseng ba motlakase le hore sekoti se lutseng hantle. Le ka mohla u se ke ua sebelisa mochine oa ho fetola pompo ho transformer e matlafalitsoeng.

D. Series/Multiple kapa Delta/Wye Switch Settings: Haeba e na le switjha ea delta/wye, etsa bonnete ba hore e behiloe sebakeng se nepahetseng. Li-switches ka bobeli li etselitsoe ho-sebelisoa ka matla feela.

E. Ho thethefatsa: Netefatsa hore transformer e na le khokahanyo e tiileng-e sa sebetseng hantle.

F. Lihokelo tse Bolted: Netefatsa hore likhokahano tsohle tsa bolt li entsoe ka torque ho latela tafole ea torque ea moetsi. Bakeng sa li-transformer tse tloaelehileng, bushing mounting clamp: 4-hole aluminium cast bushing clamp e hloka 70–80 in{5}}lb; tse peli-li-hole bushing clamps li hloka 55–65 in{10}}lb; thepa ea sekoahelo e lokela ho tiisetsoa ho hoo e ka bang 25 ft-lb.

G. Boemo ba Mokelikeli oa Dielectric: Netefatsa hore transformer e tlatsitsoe ka nepo ka ho hlahloba tekanyo ea boemo ba mokelikeli kapa tekanyo ea pono. Letšoao la boemo ba mokelikeli le tlameha ho ba pakeng tsa matšoao a "Holimo" le "Low" ho gauge. Bakeng sa li-transformer tse se nang boemo ba mokelikeli kapa sekala sa pono, hlahloba boemo ba mokelikeli ka ho tlosa polaka boemong ba likhato tse 25. Se ke oa tlosa polaka ea boemo ba oli ha oli ea transformer e kaholimo ho likhato tse 40.

H. Li-transformers tsa hona joale: Haeba e na le li-transformer tsa hona joale (CTs), li-CT lead lead li lokela ho hokahanngoa le mojaro oa metering kapa li-relay tse nang le moroalo o nepahetseng. Haeba lits'oants'o tsa CT li sa hokahane le mojaro oa metering, li tlameha ho khutsufatsoa hammoho le ho theoa pele ho matla a transformer.

I. Laola Wiring Bakeng sa Lisebelisoa: Netefatsa hore lithapo tsohle tsa taolo li hokahane ebile lia sebetsa.

J. Internal Fault Detector (haeba e na le lisebelisoa): Haeba transformer e na le mochine o ka hare oa phoso (IFD), senotlolo sa sekepe se tlameha ho tlosoa pele ho matlafatsoa. Fetolela senotlolo sa ho tsamaisa thepa (sekotoana se sefubelu sa kantle) ka likhato tse 90 ka tatellano ea nako ho e tlosa.

K. Lisebelisoa: Netefatsa tšebetso ea lisebelisoa tsohle tse nang le likhokahano kapa ntle le tsona, ho kenyeletsoa lisebelisoa tsa ho fokotsa khatello ea maikutlo, litekanyo tsa mocheso, litekanyo tsa boemo ba mokelikeli, le likhatello{0}} tsa vacuum gauge.

L. Tlhahlobo ea Tanka ea Kantle: Netefatsa hore letsoho la transformer le koetsoe, 'me ho kenngoa likoahelo leha e le life tse sireletsang. Netefatsa hore likhurumetso tsa manhole li koaletsoe ka liboutu tse tiileng le sesebelisoa sa ho imolla khatello se setiloe bocha.

M. Tlhahlobo ea ho Hlakola: Netefatsa hore likhokahano tsohle tsa mehala li boloka tumello e nepahetseng ho latela maemo a sebetsang.

N. Fans: Haeba e na le lisebelisoa, etsa bonnete ba hore libapali li ntse li bilika ka bolokolohi 'me lia sebetsa. Bakeng sa balateli, kamehla netefatsa pele ho matlafatsoa hore ba ohla ka bolokolohi.

O. Li-valve tsa radiator: Haeba o na le li-radiator tse khaolehang, etsa bonnete ba hore li-valve tsohle tsa radiator li BULEKILE ka nako ea -ea matla. Ho hloleha ho bula li-valve ho tla senya transformer ka ho chesa haholo.

P. Lihlahla: Hloekisa lihlahla hantle 'me u netefatse hore ha ho na mapheo a moriri kapa tšenyo e' ngoe. Etsa bonnete ba hore libaka tsa ho nyalana ha li na makukuno le lithōle.

 

7.2 Kakaretso Pele-Tshireletso ea Matla

• U SE KE UA matlafatsa ntle le ho qeta{0}}litlhahlobo le liteko tsa matla.
• U SE KE UA matlafatsa ntle le ho hloekisa lihlahla.
• LE KA mohla u se ke ua sebelisa transformer ho feta tekanyo ea nameplate.
• Netefatsa hore mocheso oa mokelikeli oa dielectric ha o ka tlase ho tekanyo e boletsoeng ke moetsi bakeng sa ts'ebetso e batang (hangata −20℃bakeng sa mineral oil, 0℃for R{2}}Temp fluid, kapa −10℃for natural ester fluid).

Haeba o etsa Teko ea Maqhubu a Tlase haholo (VLF), u se ke oa feta 115% ea motlakase oa motlakase oa motlakase ka nako ea metsotso e 30. U se ke ua etsa tlhahlobo ka sesebelisoa sa transformer sebakeng se koetsoeng. Netefatsa hore batshwari, haeba ba teng, ba kgaotswe pele o qala tlhahlobo.

 

 

 

 

 

 

 

 

8.1 Pele{1}}Litlhahlobo tsa ho Qetela tsa Matla

Netefatsa tse latelang pele ho matlafatsoa:

• Lihokelo tsohle tsa kantle li entsoe ka nepo (ho aroloa ha likhokahano ho li-terminal bushings, jj.)
• Lihokelo tsohle li tiile ebile li bolokehile
• Li-circuits tsohle tse amanang le lisebelisoa lia sebetsa
• Ha ho na bopaki ba mongobo
• Lihokelo tsohle tsa liboutu li tiile
• Ha ho lisebelisoa kapa lintho tse ling tse siiloeng ka holim'a transformer kapa ka har'a sebaka se koetsoeng
• Boemo ba mokelikeli bo nepahetse
• Transformer e na le khatello e ntle
• Matla a dielectric a mokelikeli o sireletsang a kopana le litlhoko (bonyane 26 kV, ka mokelikeli o mocha ho 30 kV kapa ho feta)
• Likamano tse sa nke lehlakore le tsa fatše li entsoe hantle
• Likoahelo tsohle tse sireletsang li koetsoe 'me li bolt ka thata

 

8.2 Post{1}Tiiso ea Matlafatso

Kamora ho matlafatsa transformer empa pele o kenya, netefatsa tse latelang:

A. Netefatso ea Voltage: Pele o kenya transformer, netefatsa hore tlhahiso ea motlakase ea bobeli e nepahetse. Sebelisa voltmeter ea AC ho lekanya motlakase le ho netefatsa hore e lumellana le li-voltages tsa bobeli joalo ka ha ho bonts'itsoe ho nameplate.

B. Ho dutla: Tsamaea ho pota-pota transformer 'me u hlahlobe ka hloko hore na ho na le ho lutla hofe kapa hofe. Haeba ho na le ho lutla ho itseng, -noa matla a transformer 'me u e lokise hang-hang.

C. Tshebetso: Netefatsa ka mor'a ho kenya hore ha ho na lintho tse sa tloaelehang tse bonoang joalo ka lerata le feteletseng, ho thothomela, kapa ho futhumatsa. Transformer e tla hlahisa lerata le hlabang tlas'a ts'ebetso e tloaelehileng. Haeba ho utloahala melumo e feteletseng kapa e sa tloaelehang, etsa lipatlisiso hang-hang.

D. Likhakanyo: Netefatsa hore tekanyo ea boemo ba mokelikeli le tekanyo ea mocheso li bontša maemo a nepahetseng le mocheso o tlas'a mojaro.

E. Li-valve tsa radiator: Bakeng sa li-transformer tse nang le li-radiator tse senyehang, netefatsa hape hore li-valve tsohle tsa radiator li BULEKILE.

 

 

 

 

 

 

9.1 Maemo a Tlwaelehileng a Tshebetso

Li-transformer li lokela ho sebetsoa feela ka litekanyetso tse boletsoeng ho lebitso la lebitso la transformer. Ts'ebetso ea nako e telele e tlatsitsoeng e tla khutsufatsa ka mokhoa o lekanyelitsoeng bophelo ba ts'ebeletso ea oli ea liminerale-e tlatsitsoeng transformer.

Kamehla hlahloba li-gauge tsohle nakong ea ts'ebetso. Boemo ba mokelikeli bo tlameha ho lula bo tloaelehile, ho nahanoa ka liphello tsa mocheso. Nako e telele ea khatello ea zero e ka bontša hore khase e lutla 'me e lokela ho batlisisoa. Thempereichara ea mokelikeli ha ea lokela ho phahama ho feta boleng ba moralo ho nameplate hammoho le mocheso oa tikoloho.

 

9.2 Ho fetola lits'ebetso

Loaro Break Switches: Li-switches tsena li ka sebetsoa FEELA ka ho hokela-sesebelisoa sa line ho letsoho la ka ntle la hook ebe u potoloha ho ea sebakeng sa "ON" kapa "OFF". Ha mocheso oa mokelikeli o sireletsang o le ka tlase ho −20℃bakeng sa oli e tloaelehileng ea transformer kapa ka tlase ho −10℃bakeng sa oli ea meroho, ka tlas'a-lisebelisoa tsa ho robeha ha oli ha lia lokela ho sebelisoa ho etsa kapa ho roba moroalo. Ho e-na le hoo, de{6}}matlafalletsa transformer ho tsoa mohloling o ka thōko pele o sebetsa ka tlas'a{7}}lisebelisoa tse pshatlang oli.

 

9.3 Tekolo le Litlhahlobo tsa Nako le Nako

Litlhahlobo tsa nako le nako li lokela ho etsoa ha transformer e ntse e sebetsa:

Tlhahlobo ea Kantle: Nako le nako hlahloba boemo ba pente le qetello, haholo-holo ha e le maemong a mabe a sepakapaka. Haeba boemo ba leholimo bo etsahala, hloekisa tanka ka botlalo, hlakola metsi leha e le afe a silafatsang a tšolotsoeng, 'me u pente hape ka pente e amohelehang. Ka linako tse ling hlahloba le ho tiisa manonyeletso 'ohle a bolt 'me u hlahlobe ho lutla.

Litlhahlobo tsa likhakanyo: Hlahloba litekanyo tsohle khafetsa. Ho baloa ha litokomane ho kenyelletsa mocheso oa tikoloho le mojaro oa transfoma.

Mesebetsi ea Selemo le Selemo ea Tlhokomelo: Tse latelang li lokela ho hlahlojoa selemo le selemo:

• Boemo ba Mokelikeli oa Dielectric: Lekola tekanyo ea boemo ba mokelikeli oa dielectric. Haeba boemo bo le ka tlase ho lebitso, hlahloba matšoao a ho lutla.
• Mokelikeli oa Mocheso: Sheba tekanyo ea mocheso oa metsi bakeng sa mocheso o phahameng. Bapisa mocheso le likarolo tse tšoanang.
• Lihlahla: Sheba boemo ba lihlahla tsa HV le LV bakeng sa litšila, ho robeha, tšenyo ea mocheso, kapa flashover.
• Sephafo sa ho Imolla Khatello: Hlahloba litšila, maloanlahla, le tšebetso e nepahetseng.
• Batshwari ba Lehadima: Sheba hore na ha ho na tšenyo e itseng 'me u netefatse hore ho na le khokahanyo e tiileng ea fatše.
• Li-Fuse le Lihokelo: Bakeng sa li-fuse tsa bayonet, hlahloba boteng ba mokelikeli; bakeng sa likhokahano tsa cable, hlahloba matšoao a ho chesa haholo.

 

 

 

 

 

 

 

10.1 Teko ea Nako le Nako

Liteko le litlhahlobo tse latelang li khothaletsoa bakeng sa ho boloka transfoma ea seteishene:

• Litemana tsa Gauge: Lekanya 'me u rekote ho baloa ha li-gauge, mocheso oa tikoloho, le thepa ea transformer khoeling e le' ngoe ka mor'a ho matlafatsoa, ​​​​ebe selemo le selemo ka mor'a moo. Boloka tlaleho ea litekanyetso tsa teko ho fumana hore na ho lokisa kapa ho tlatsa litšebeletso ho hlokahala neng.
• Laola Wiring: Netefatsa hore tsamaiso ea lithapo tsa lithapo li maemong a matle le litiiso tsa boemo ba leholimo li tiile. Bapisa matla a phepelo ea matla a taolo le motlakase o boletsoeng setšoantšong sa wiring.
• Penta: Selemo le selemo lekola pente ea transformer bakeng sa tšenyo ea leholimo le mafome. Lokisa tšenyo leha e le efe ea pente e fumanoeng.
• Li-insulators tsa Bushing: Hlahloba li-bushings tsa li-unit bushings le li-insulators tsa surge arrester selemo le selemo. Hloekisa libaka ha transformer e se na matla.

 

10.2 Sampling Insulating Mokelikeli

Mehlala ea metsi e lokela ho nkoa nako le nako 'me e hlahlojoe. E kgothaletswa ho nka sampuli ka hare ho beke e le 'ngoe ka mor'a matla, le selemo le selemo ka mor'a moo.

Mokhoa o nepahetseng oa ho etsa sampole:

• Mehlala e lokela ho huloa ho valve ea sampling e ka tlase ho tanka ea transformer.
• Thempereichara ea mokelikeli e lokela ho ba holimo ho feta mocheso o potolohileng moea ho qoba condensation ea mongobo mokelikeli.
• Sebelisa lijana tse hloekileng, tse omeletseng (hangata tse kholo-libotlolo tsa khalase ea molomo).
• Se ke oa lumella mokelikeli ho fafatsa ka har'a sets'oants'o se amohelang-ho fafatsa ho ka hlahisa moea le mongobo.
• Hlatsoa botlolo ka makhetlo a mararo ka mokelikeli o ntseng o etsoa sampole.
• Ha u hula lisampole ho tloha ka tlase, hula mokelikeli o lekaneng ho netefatsa hore sampole e tsoa botebong ba tanka, eseng mokelikeli o bolokiloeng phaepheng ea sampole (e ka kenyelletsang condensation le sediments).
• Bakeng sa lisampole, ho tlameha ho sebelisoa hose ea tšepe kapa{0}e seng{0}}ea rabara hobane oli e tsoa sebabole ho tsoa ho rabara, e ka bang kotsi ho likarolo tsa transfoma.
• Lekola matla a dielectric ho latela ASTM D-877. Haeba matla a dielectric a theoha ka tlase ho 26 kV, mokelikeli o lokela ho sefshoa ho fihlela tlhahlobo e fihla ho 26 kV kapa ho feta.

 

10.3 Tlhahlobo ea Khase e Qetetsoeng (DGA)

Tlhahlobisiso ea Khase e Khaotsoeng ke sesebelisoa sa ho hlahloba boemo ba li-transformer tsa matla ka ho lekanya likhase tse qhibilihisitsoeng ka oli e sireletsang. Mekhoa ea ho toloka bakeng sa DGA e kenyelletsa IEEE C57.104, e fanang ka lits'ebetso tse qaqileng tsa ho lekola boemo ba transformer ho sebelisa lisebelisoa le mekhoa ea tlhahlobo.

• Tataiso ea DGA e bua ka:
• Khopolo ea ho hlahisa khase ka transformer
• Tlhaloso ea liphetho tsa tlhahlobo ea khase e qhibilihisitsoeng
• Mekhoa ea ts'ebetso e sisintsoeng
• Mekhoa e fapaneng ea ho hlahloba
• Mehlala le mehlala
• Mekhoa ea tlhahlobo le litataiso

Tataiso ea IEEE C57.104 e sebetsa ho-lisebelisoa tsa oli ea liminerale{2}}li-transformer tse qoelitsoeng 'me e reretsoe ho fa mosebelisi lintlha tse molemo mabapi le ho sebetsa ha thepa.

 

10.4 Tlhokomelo ea Bushing

Lihlahla li lokela ho nkeloa sebaka feela ha ho hlokahala. Tlhokomelo e lokela ho nkoa ho qoba ho petsoha ha porcelain kapa libaka tse senyang. Mekhoa ea ho fetola e fapana ho latela mofuta oa bushing:

Litlhokomelo tse akaretsang pele ho mosebetsi oa bushing:

• De-tlatsa transformer le ho theola lipotoloho tsohle ho ea le ho tsoa ho transfoma.
• Notlela sebakeng se "butsoeng" hakolla li-switches meleng ea phepelo ho ea le ho tsoa ho transformer.
• Fokotsa tanka sepakapakeng ho fihlela khatello e le zero.
• Haeba bushing e le ka tlase ho boemo ba mokelikeli, theola boemo ka ho lekaneng ho thibela tahlehelo ea mokelikeli.

Tlosa ho Tlosa Bushing ea mofuta oa lead:

• Hlakola 'me u tlose sekoaelo sa theminale se kaholimo ho pepesa pheletso ea thapo ea lead lead.
• Tlamella terata, thapo kapa molamu ho sutu ho tataisa loto ka har'a boro ea morung.
• Tlosa bushing mounting clamp nuts ka tanka ho lokolla mounting clamp plate.
• Tlosa bushing, u tataise mokhanni oa lead lead le "terminal stud" ho ea botlaaseng ba bushing.

Litlhoko tsa ho nkela sebaka:

• Li-clamp bolts li lokela ho tiisoa joalo ka ha ho boletsoe tafoleng ea torque ea moetsi.
• Li-gaskets tlas'a bushing mounting flange le li-gaskets tse holimo li lokela ho ba tse ncha kapa li le boemong bo botle.
• Libaka tsa ho kopanya li-gasket li tlameha ho hloeka le ho boreleli.
• Ka mor'a ho qeta, khatello ea teko ea transformer.

 

10.5 Tlhokomelo ea Radiator (Detachable Radiators)

Bakeng sa li-transformer tse nang le li-radiator tse senyehang, mekhoa e nepahetseng ea ho kenya le ho tlosa e tlameha ho lateloa:

Ho phahamisa:

• Hlakola 'me u hlahlobe radiator ka' ngoe. Tlosa li-flange tse foufetseng le libaka tse hloekileng tsa gasket.
• Pele o tlosa li-flange tse foufetseng, etsa bonnete ba hore li-valve tsa throttle li koetsoe (holimo le tlase).
• Hlohlelletsa li-radiator ka bonngoe ho ea tanka 'me lehlakore le letona le le holimo (lehlakoreng le ka holimo=le phahamisa mokotla).
• Kamehla sebelisa li-gaskets tse ncha. Tiisa liboutu tsohle tsa li-valve tsa throttle ebe u tiisa hape ka mor'a lihora tse 24.
• Beha li-stiffener bar (haeba li le teng) lipakeng tsa li-radiator.
• Kenya li-fan (haeba li teng) 'me u hokele likhoele tsa taolo ea matla.

Ho tlatsa:

• Bula{0}sekurufu sa moea holim'a radiator.
• Ka mokhoa o itseng, bula valve ea "throttle" e ka tlase ho tanka.
• Ha oli e tsoa moeeng{{0}sekurufu sa moea, koala sekoahelo sa moea{1}} hang-hang.
• Bula ka ho feletseng li-valve tsa throttle tse ka holimo le tse tlaase.

 

10.6 Ho Tlatsa Ka mor'a Litokiso

Ka mor'a hore litokiso li phethoe, tlatsa yuniti ka tlas'a vacuum e nyenyane ea 3 PSIG (boholo) ka mokelikeli o omileng oa dielectric ho ea boemong ba mokelikeli oa 25. Ha ho hlokahala ho eketsa kapa ho tlatsa transformer ka mokelikeli oa dielectric, mosebetsi o tlameha ho etsoa ka kamoreng e hloekileng, e omeletseng. Sebelisa hose e thibelang oli-e seng{5}e seng letho la rabara.

 

10.7 Tlhokomelo ea Qetello ea Kantle

Hlahloba boemo ba ka ntle ba transformer ka linako tse ling. Haeba boemo ba leholimo bo ntse bo le teng, hloekisa bokaholimo ka botlalo 'me u bo pente bocha ka pente e tšoarellang ea boemo bo holimo{{1}ho ea ka tlhahiso ea moetsi.

 

10.8 Likarolo tse Sireletseng

Boloka karolo e 'ngoe ea li-gaskets bakeng sa mokoti le li-bushings tsa mofuta ofe kapa ofe tse sebelisoang. Likarolo tse ling tsa ho nchafatsa li ka odara ka moemeli oa lehae oa feme. Ha o laela likarolo kapa o kopa tšebeletso, fana ka tlhaloso e feletseng ea karolo kapa bothata le nomoro e feletseng ea serial ea transformer joalokaha e thathamisitsoe ho nameplate.

 

 

 

 

 

 

 

Litekanyetso tse latelang li hlalositsoe ho pholletsa le tataiso ena mme li lokela ho buisanoa bakeng sa lintlha tse qaqileng:

Litekanyetso tsa IEEE:

• IEEE C57.12.00 – Litlhoko tse Akaretsang bakeng sa Mokelikeli-Kabo e Khanyetso, Matla, le Liphetoho tse Laolang
• IEEE C57.12.34 – Litlhoko tsa Pad-Mounted, Compartmental-Type, Iself-Cooled, Three{4}}Phase Distribution Transformers
• IEEE C57.12.90 – Test Code for Liquid-Immersed Distribution, Power, and Regulating Transformers
• IEEE C57.94 – Mekhoa e khothalelitsoeng ea ho Kenya, ho Sebelisa, le ho Lokisa Sebaka se Omileng-Mofuta oa Kabo ea Morero o Akaretsang le Liphetoho tsa Matla
• IEEE C57.104 – Tataiso ea Tlhaloso ea Likhase tse Hlahiloeng ka Oli ea Liminerale-Liphetoho Tse Kokotsoeng
• IEEE C57.106 - Tataiso ea Kamohelo le Tlhokomelo ea Oli e Insulating ka Thepa

Litekanyetso tsa NEMA:

• NEMA TR 1 – Li-transfoma, Balaoli le Li-reactors

Litekanyetso tsa ANSI/NETA:

• ANSI/NETA ATS - Tekanyetso ea Litlhaloso tsa Teko ea Kamohelo bakeng sa Thepa ea Motlakase le Litsamaiso
• ANSI/NETA MTS – Tekanyetso ea Litlhaloso tsa Teko ea Tlhokomelo bakeng sa Thepa ea Motlakase le Litsamaiso

Litekanyetso tsa ASTM:

• ASTM D-877 - Mokhoa o Tloaelehileng oa Teko oa Dielectric Breakdown Voltage ea Insulating Liquids U sebelisa Disk Electrodes
• ASTM D-923 - Mekhoa e Tloaelehileng ea ho etsa Sampling ea Motlakase Insulating Liquids

Melao ea Tšireletso:

• OSHA 29 CFR 1910.269 - Phatlalatso ea Motlakase, Phetiso, le Kabo
• NFPA 70E - Tekanyetso ea Tšireletseho ea Motlakase Sebakeng sa Mosebetsi
• Sehlooho sa NEC 450 - Transformers le Transformer Vaults (Ho kenyeletsoa le Maqhama a Sekondari)

• NEC Article 480 - Libetri tsa polokelo

 

 

 

 

 

 

 

 

Ntle le li-transformer tsa li-substation, mefuta e meng ea li-transformer e sebelisoa haholo mekhoeng ea phetisetso ea matla le kabo. Mofuta o mong le o mong o na le litlhoko tse khethehileng tsa ho kenya, ts'ebetso le polokeho. Sheba litataiso tse latelang bakeng sa kakaretso e felletseng ea lits'ebetso tse tloaelehileng tsa transformer.

• Tataiso ea Ts'ebetso ea Transformer ea Matla le Ts'ebetso
• Pole Mounted Transformer Installation le Tataiso ea Ts'ebetso
• Pad Mounted Transformer Installation le Tataiso ea Ts'ebetso
• Mofuta o omileng oa ho kenya Transformer le Tataiso ea Ts'ebetso
• Tataiso ea Ts'ebetso ea Compact Substation le Tataiso ea Ts'ebetso

 

 

 

 

 

 

 

 

Ho kenya, ho sebetsa, le ho hlokomeloa ka nepo ha li-transformer tsa seteishene li bohlokoa bakeng sa ho netefatsa{0}}ts'epehi, polokeho, le ts'ebetso ea nako e telele. Ka ho latela mekhoa e hlalositsoeng tataisong ena-ho tloha qalong ea ho amohela le ho sebetsana le eona ka ho kenya, ho lekoa, ho matlafatsa, le tlhokomelo e tsoelang pele-litsebi li ka lelefatsa bophelo ba li-transformer ha li ntse li fokotsa kotsi ea ho se sebetse ha thepa le ho tsoa kotsi.

Lintlha tsa bohlokoa bakeng sa taolo e atlehileng ea li-transformer:

• Polokeho pele- Kamehla latela melao ya tshireletso e sebetsang (IEEE, NEMA, NEC, OSHA, NFPA). Le ka mohla u se ke ua sekisetsa liprothokholeng tsa polokeho.
• Ho tšoara hantle- Sebelisa libaka tse laetsoeng tsa ho phahamisa 'me u boloke boemo bo le ka har'a likhato tse 4 nakong ea ho instola.
• Tlhahlobo e phethahetseng- Etsa tlhahlobo e felletseng ea-ea matla, ho kenyeletsoa TTR, ho sa khonehe ho pata, boleng ba mokelikeli, le ho hlahloba tšebetso ea lisebelisoa tsohle.
• Tlhokomelo ea kamehla- Kenya tšebetsong lenaneo la selemo le selemo la tlhahlobo, ho kenyeletsoa tlhahlobo ea DGA le tlhahlobo ea boleng ba mokelikeli.
• Litokomane- Boloka tlaleho ea lintlha tsa tekolo, lipalo tse baloang, le mesebetsi ea ho lokisa ho tseba mekhoa le ho fumana hore na ho hlokahala neng ho lokisa bocha.

Bakeng sa lintlha tse ling kapa lipotso tse khethehileng tsa tekheniki, ikopanye le moemeli oa feme ea moetsi oa transformer.