Tlhokomelo ea Transformer e kholo ea Matla le Tataiso ea Ts'ebetso: 100 MVA 132/22 kV Mekhoa e Molemohali ea Karolo ea 4

1. Karolo ea Tlhokomelo ea Transformer ho Tšepahalang ea Transformer

 

 

Ha e le hantle, tlhokomelo ea li-transformer hangata ha e utloisisoe e le mosebetsi o tloaelehileng oa ho hlahloba. Libakeng tsa 'nete tsa boenjiniere, e sebetsa joalo ka ts'ebetso e tsoelang pele ea taolo ea likotsi ho fapana le mosebetsi o reriloeng.

Bakeng sa li-unit tse kholo tsa motlakase tse kang 100 MVA 132/22 kV system, sena se totobala le ho feta ts'ebetsong ea tokiso ea motlakase. Hangata li-transformer tsena li sebetsa tlas'a{4}}maemo a nako e telele a ho kenya, hangata a le haufi le moeli oa meralo ho latela tlhoko ea marang-rang kapa setsi sa data. Maemong a joalo, ho kheloha ho honyenyane boitšoarong ba mocheso kapa ho kenya letsoho butle-butle ho ka fetoha liphoso tsa transformer 'me ho hloka hore ho fumanoe phoso ea pele ea transfoma.

Ho tsoa ho boiphihlelo ba tšimo, tlhokomelo ea li-transformer tsa motlakase ha e bue ka "ho fumana mathata" le ho feta mabapi le ho thibela liphoso tse nyane hore li se ke tsa fetoha lisosa tsa ho hloleha ha motlakase, e leng mohopolo oa mantlha oa tlhahlobo ea phoso ea transformer le tlhahlobo ea ho hloleha ha transformer.

 

Ho aha kutloisiso e felletseng ea taolo ea bophelo ba transfoma, o ka boela oa hlahloba:

• Transformer Pre{0}}Taelo ea ho Instola le Tlhahlobo (Karolo ea 1)
• Tataiso ea ho Kenya Transformer Bushing (Karolo ea 2)
• Tlhahlobo ea Phoso ea Transformer le Tataiso ea Tharollo ea Mathata (Karolo ea 3)

 

2. Ts'ebetso ea Letsatsi le Letsatsi le Tlhokomelo ea Li-Transformer tsa Matla

 

Ts'ebetso e tsitsitseng ea li-transformer e itšetlehile ka motsoako oa taolo ea mojaro, boitšoaro ba mocheso, le ho hlahloba boemo ba ho kenya letsoho. Ona ke motheo oa ts'ebetso ea sejoale-joale ea ho lekola maemo a li-transformer. Libakeng tse ngata tsa li-substations, basebetsi ba itšetlehile haholo ka litsamaiso tsa marang-rang, empa tlhaloso e ntse e hloka kahlolo ea boenjiniere bakeng sa tharollo e nepahetseng ea li-transformer.

Mekhahlelo ea Bohlokoa ea Ts'ebetso ea Ts'ebetso

Maemong a mangata a masimong, boitšoaro ba mocheso bo ruta ho feta mojaro o felletseng. Ho tsitsipana ha thempereichara e ntseng e nyoloha butle hangata ho fana ka maikutlo a ho se sebetse hantle ha pholiso, athe ho phahama ka sekhahla ha thempereichara ho ka bontša pele-mehato ea tlhahlobo ea phoso ea transformer e amanang le ho hlahisa mathata a ka hare ho transfoma.

3. Lethathamo la Tlhokomelo ea Transformer ea Ka mehla

 

Ts'ebetso ea kamehla ea ho lokisoa ha li-transformer ke moo melemo e mengata ea nako e telele-ea ts'epahalo e tsoang teng, le hoja hangata e nyatseha ts'ebetsong ea tlhokomelo ea transfoma.

3.1 Tlhokomelo ea Moea (Taolo ea Mongobo).

Nakong ea phefumoloho, relay ea Buchholz hangata e fetisetsoa ho alamo ho qoba ho khoptjoa. Haeba ho-load tap changer e teng, litokiso tsa AVC li kanna tsa hloka khokahanyo le taolo ea ho romella.

Ka mor'a tlhokomelo, botsitso ba moea le botšepehi ba ho tiisa bo lokela ho netefatsoa. Mohato ona o atisa ho hlokomolohuoa ho rarolla mathata a transformer, le hoja e ama ka ho toba kotsi ea nakong e tlang ea ho kenella ha mongobo.

 

3.2 Tlhokomelo ea Mokhoa oa ho Pholisa

Sistimi ea ho futhumatsa e hokahane ka kotloloho le boits'oaro ba mocheso o feteletseng oa transformer, haholo-holo tlas'a maemo a sa khaotseng a mojaro maemong a tokiso ea motlakase.

Ha matšoao a joalo ka mabone a boemo ba fan, li-breaker, li-relay tsa mocheso, kapa likhokahano li hloleha, hangata lia hlokahala. Hoa rateha-le hoja e se kamehla ho khonehang{2}}ho sebelisa likarolo tse tšoanang ho boloka botsitso ba sistimi.

Ka mor'a ho nkeloa sebaka, ho netefatsa ho bohlokoa ho feta ho instola ka boeona. Wiring e nepahetseng, switch switching e nepahetseng, le karabelo e tsitsitseng ea fan kapa pompo li lokela ho netefatsoa pele o khutlela ts'ebeletso.

Ho tsoa ho boiphihlelo, ho hloleha ha li-transformer tse ngata ho qala ka khutso tsamaisong ea pholileng ho e-na le ka hare ho li-windings, e leng ntlha ea bohlokoa ho hlahloba phoso ea transformer.

 

3.3 Mokotla oa Oli le Mokhoa oa Tšireletso ea Mollo

Hangata likoti tsa oli li hlokomolohuoa ho fihlela phoso e hlaha. Ha e le hantle, ke karolo ea tšitiso ea pele ea karabelo bakeng sa maemo a mollo oa li-transformer hape e amana ka tsela e sa tobang le taolo ea kotsi ea ho lutla ha oli ea transformer.

Ho hloekisoa khafetsa hoa hlokahala ho thibela ho bokellana ha litšila le ho bokellana ha metsi. Esita le likheo tse nyenyane tsa tlhokomelo mona li ka eketsa kotsi ea ho eketseha ha mollo ha li kopantsoe le maemo a ho lutla ha oli.

 

3.4 Mokhoa oa ho Ts'oara Khase ea Buchholz Relay

 

 

Ts'ebetso ea phepelo ea khase ke e 'ngoe ea matšoao ao kamehla a hlokang ho hlalosoa ka hloko ts'ebetsong ea ho bona liphoso tsa transformer.

Molumo oa khase le nako ea ho lokolloa li lokela ho ngoloa kamehla. Ka mor'a ho ntša moea, valve e tlameha ho koaloa ka mokhoa o sireletsehileng. Ha e le hantle, litaba tse nyane tsa ho tiisa mona li ka baka lialamo tse pheta-phetoang tse khelosang nakong ea ho rarolla mathata a transformer.

Haeba ho hlokahala sampole ea khase, lihokelo tse tiisitsoeng tse inehetseng li tlameha ho sebelisoa. Teko ea malakabe e bulehileng haufi le libaka tsa khase e qojoa ka thata maemong ohle a masimong.

Ha ho se na sistimi ea pokello ea khase, ts'ebetso ea nakoana ea lets'oao e sebelisoa nakong ea moea. Mohato ona o ts'ehetsa ts'ebetso e sireletsehileng ea tlhahlobo ea phoso ea transformer.

 

4. Ho Beha fatše, Tšireletso, le Tlhokomelo ea Tsamaiso ea Ts'ireletso

 

Teko ea Hona Joale ea Transformer Core le Clamp Ground

Teko ea hajoale e etsoa hang ka selemo bakeng sa lisebelisoa tsa 110 kV-'me ke karolo ea mokhoa o tloaelehileng oa ho lekola boemo ba li-transformer.

Haeba mobu oa fatše o feta 100 mA, hangata o tšoaroa e le letšoao le sa tloaelehang le hlokang ho hlahlojoa ka ho teba ha li-transformer ho e-na le ho hlophisoa hang-hang.

Tšireletso ea Lehalima le Mekhoa e sa Tloaelehang ea Sisteme ea ho Fokotsa

Maemo ana hangata a amahanngoa le mekhoa e tsoetseng pele ea ho hloleha ha li-transformer mme a ka hloka liketso tsa hang-hang tsa ho rarolla mathata.

 

5. Infrared Thermography le Condition Monitoring

 

Tlhahlobo ea infrared e sebelisoa haholo lits'ebetsong tsa sejoale-joale tsa tlhahlobo ea boemo ba transfoma hobane e fana ka-pono e sa hlaselehang habonolo ea bophelo bo botle ba transfoma.

Ha e le hantle, libaka tse chesang tse sa tloaelehang ha se kamehla li bonts'ang ho hloleha hang-hang, empa hangata li bontša ho chesa ho fetelletseng kapa maemo a hlephileng a khokahanyo a hlokang ho hlahlojoa hape hore ho na le phoso.

 

6. Online Monitoring System Maintenance

 

Lits'ebetso tsa ho lekola marang-rang, haholo-holo li-transformer tsa tlhahlobo ea khase e qhibilihisitsoeng, li hloka ts'ebetso e tsitsitseng hore e lule e na le morero leanong la ho lemoha liphoso tsa transformer.

7. Maemo a sa Tloaelehang a Ts'ebetso le Lipontšo tsa Temoso ea Pele

 

Mona ke moo ho lemoha liphoso tsa transformer ho bang bohlokoa haholo libakeng tsa 'nete tsa boenjiniere.

Matšoao a tloaelehileng a pele a kenyelletsa ho nyoloha butle ha mocheso (ho hokahantsoeng le ho futhumala ha transfoma), ho kheloha ho honyane ha boemo ba oli (ka linako tse ling ho amahanngoa le ho lutla ha oli ea transfoma), le lialamo tsa khase tse bonoang ka tlhahlobo ea khase e qhibilihisitsoeng.

Lipontšo tsena hangata li hlahlobjoa ka mokhoa oa tlhahlobo ea phoso ea transformer ho fapana le ho etsa liqeto tsa ho koala hanghang.

 

8. Qetello: Tlhokomelo e le Taolo e Tsoelang Pele ea Kotsi

 

Tlhokomelo ea transfoma e lokela ho nkoa e le taolo e tsoelang pele ea kotsi ho e-na le ho fana ka litšebeletso nako le nako.

Ha tlhokomelo ea li-transformer, tlhahlobo ea mocheso, le tlhahlobo ea phoso ea transformer li kopantsoe hantle, liphoso tse kholo li ka boleloa esale pele kapa tsa fokotsoa.

Litsamaisong tsa 'nete tsa boenjiniere, ho ts'epahala ha se hangata ho hlahisoang ke ketso e le' ngoe. Hangata ke ho bokella liqeto tse ngata tse nyenyane tsa tlhokomelo tse entsoeng ka nepo ha nako e ntse e ea.