I-Power Transformer Basics

1.  2. Ukwahlukanisa ngokugoqa

2. (1) Isiguquli esinamawindi amabili: sisetshenziselwa isiguquli esikhuphukayo, isiguquli esisuka phansi, isiguquli sefekthri, njll.

3. (2) Isiguquli esinamawindi amathathu: sisetshenziselwa isiguquli esisuka phansi, isiguquli sokubopha, njll.

4. (3) Isiguquli esizihlanganisayo: sisetshenziselwa isiguquli esisuka phansi, isiguquli sokuxhumanisa, njll.

5. (4) I-split transformer: Kunezinhlobo ezimbili zokuhlukaniswa kwe-axial kanye nokuhlukaniswa kwe-radial, ezisetshenziselwa ama-transformer asefekthri kanye nama-start-up transformer.

7.  3. Ukuhlukaniswa ngesakhiwo

8. (1) Isiguquli sesigaba esisodwa: sisetshenziselwa ama-330~1000kV ama-transformer.

9. (2) I-transformer yezigaba ezintathu: isetshenziselwa i-10~500 kV transformer.

10. (3) I-transformer ehlanganisiwe: I-transformer ihlukaniswe izingxenye eziningana, futhi i-transformer ihlanganiswa ngemva kokufika endaweni, esetshenziswa ezindaweni ezinethrafikhi engalungile.

12. 4. Ukuhlukaniswa ngendlela yokupholisa

13. (1) I-transformer ecwiliswe ngamafutha: isetshenziselwa ama-transformer angu-10~1000kV.

14. (2) I-transformer yohlobo olomile: isetshenziselwa ama-transformer angu-10~110 kV.

15. (3) I-SF6 transformer: okwamanje isetshenziselwa ama-transformer angu-110 kV.

17. 5. Imodeli ye-transformer yamandla

19. (1) Incazelo yezinhlamvu ezisemodeli

21.  D—Isigaba Single F—Ukucwiliswa komoya kawoyela

22.  I-O—self P—ukujikeleza kukawoyela ngempoqo

23.  S—Izigaba ezintathu noma ezintathu-ikhoyili J—Ukuzipholisa ngamafutha

24.  Z—On-load voltage regulator L—Aluminium coil

26.  * Amakhoyili ekhopha namakhoyili amabili awadingi ukwengeza izimpawu

28. (2) Isibonelo

30. I-SFPSL—120000/110: 110kV, 120MVA izigaba ezintathu zamakhoyili amakhoyili aphoqelela ukujikeleza kukawoyela komoya opholisa ikhoyili ye-aluminium transformer

32. I-OSFPSZ—240000/330: 330 kV, 240MVA izigaba ezintathu zamakhoyili ekulayishweni kwamandla kagesi okuphoqelela ukujikeleza kukawoyela okupholise umoya ozihlanganisayo

Okwesibili, ikhoyili ye-transformer yamandla

Ikhoyili iyingxenye ebaluleke kakhulu futhi eyinkimbinkimbi ku-transformer yamandla. Yenziwe ngocingo lwethusi (noma i-aluminium) futhi yakhiwe izingxenye ezikhethekile zokuvikela.

1. Ikhoyili elivunguzayo

Isici esiyinhloko sekhoyili evunguzayo ukuthi inani lezintambo ezihambisanayo likhulu, ikhekhe locingo liboshwe libe yi-spiral, futhi ikhekhe elilodwa locingo liyikhoyili yokujika okukodwa. Ikhoyili evunguzayo inokuqina okuhle kwemishini, ukunqamuka okuhle kokushisa kanye nobuciko obuhle, futhi isetshenziswa kakhulu kumakhoyili anamandla aphansi kanye namanje aphezulu ama-transformer.

Ikhoyili ye-helical ingalimaza ibe izingxenye ezintathu ze-helix eyodwa, i-double helix kanye ne-quadruple helix ngokobukhulu bamanje.

2. Ikhoyili eqhubekayo

Uma ikhoyili yakhiwe ngezingxenye zocingo eziningana ezisatshalaliswa eduze kwe-axial direction futhi ingadingi ukushiselwa komunye nomunye, ibizwa ngokuthi ikhoyili eqhubekayo.

Ukuphela kwendawo yokusekela ikhoyili eqhubekayo inkulu, amandla e-axial makhulu, ukumelana kwe-short-circuit kunamandla, futhi ingxenye ngayinye yomugqa inamandla amakhulu okukhipha ukushisa. Lolu hlobo lwekhoyili lunohlelo olubanzi lwezinhlelo zokusebenza kungakhathaliseki izinga likagesi noma ububanzi bomthamo.

3. Ikhoyili ephithene

Ikhoyili ephithene iqukethe izingxenye zomugqa ophithene (ophaya). Amakhoyili anawo wonke amasegimenti olayini abaphithene (amakhekhe) abizwa ngokuthi amakhoyili aphithene ngokugcwele, futhi asetshenziswa kakhulu kuma-transformer anama-voltage angu-220kV nangaphezulu. Ikhoyili eyakhiwe ingxenye yengxenye yomugqa ophithene (ikhekhe) kanye nengxenye yengxenye yomugqa oqhubekayo ibizwa ngokuthi ikhoyili eqhubekayo ephithene, esetshenziswa kuma-transformer ane-voltage engu-66 kV nangaphezulu.

Njengoba ifaka amajika angasondelene phakathi kokuphenduka okuncikene kwekhoyili, kwakheka izingxenye zolayini ophithene onyakazayo bese kwakheka ikhoyili ephithene, ngaleyo ndlela ikhulise amandla e-longitudinal ekhoyili futhi yenze i-voltage yomfutho ihambisane nobude be-axial bekhoyili. Izici zokusabalalisa ziyathuthukiswa, ngakho-ke zisetshenziswa kakhulu kumakhoyili ahlukahlukene aphezulu-voltage.

4. Ikhoyili evikelekile yangaphakathi

Ikhoyili eqhubekayo yesihlangu esokuthuthukisa ukusabalalisa kwamandla kagesi ngokukhuphula amandla ochungechunge phakathi kwamasegimenti omugqa. Isici sawo sesakhiwo ukuthi ukuphenduka kwe-capacitor eyengeziwe kulimele ngokuqondile ngaphakathi kwesigaba somugqa oqhubekayo. Iziphetho zokuphenduka kwe-capacitor zigoqwe ngo-insulation bese zilengiswa engxenyeni yomugqa. I-capacitor turning ayithwali yamanje futhi isebenza kuphela ngaphansi kwe-voltage ye-impulse.

Amakhoyili aqhubekayo avikelwe ngaphakathi atholakala ngokwesakhiwo ngendlela ye-jumper enezigaba ezimbili, i-jumper enezigaba ezine, i-jumper enezigaba eziyisishiyagalombili kanye nokuxhuma kwezigaba.

Okwesithathu, umgogodla wensimbi we-transformer yamandla

I-iron core nayo iyingxenye ebalulekile ye-transformer yamandla. Akhiwa ngokunqwabelanisa amashidi ensimbi ye-silicon ekwazi ukufinyeleleka kakhulu bese uwabopha ngeziqeshana zensimbi noma uwabophe ngamaribhoni engilazi.

1. I-Silicon steel sheet

Amashidi ensimbi ye-silicon asetshenziswa kuma-transformer amandla amashidi ensimbi e-gadolinium silicon abandayo anogqinsi luka-0.3~0.5mm. Njengamanje, yi-Wuhan Iron and Steel Plant kanye ne-Shanghai Baosteel kuphela ezingakhiqiza amashidi ensimbi e-gadolinium silicon abandayo. Kodwa-ke, amashidi ensimbi ye-silicon yama-transformer amakhulu kufanele angeniswe eJapan.

2. Isakhiwo somgogodla wensimbi

(1) Ingxenye eyodwa ye-iron core yekholomu emibili, esetshenziselwa ama-transformer ahlukene esigaba esisodwa.

(2) Ikholomu yesigaba esisodwa somgogodla wejoka lesigaba esisodwa, esetshenziselwa ama-transformer anesigaba esisodwa esinamandla amakhulu.

(3) Umgogodla wejoka oseceleni wesigaba esisodwa sekholomu emibili usetshenziselwa ama-voltage aphezulu kanye ne-ultra-high-voltage enkulu enomthamo wesigaba esisodwa sama-transformer.

(4) Ikholomu enezigaba ezintathu iwumgogodla wensimbi, osetshenziselwa ama-transformer ezigaba ezintathu ezihlukahlukene.

(5) Umgogodla wensimbi wamakholomu amahlanu womthamo omkhulu wama-transformer ezigaba ezintathu.

Okwesine, ithangi lamafutha le-transformer ecwiliswe ngamafutha

1. Ithangi lamafutha ohlobo lombhobho lisetshenziselwa ikakhulukazi ama-transformer amancane acwiliswe ngamafutha kanye nama-transformer amakhulu kakhulu acwiliswe uwoyela.

2. Ithangi likawoyela lohlobo lwe-Bell jar, lisetshenziswa kakhulu ku-110~500kV i-transformer ecwiliswe uwoyela.

3. Ithangi likawoyela elivalwe ngokugcwele selizoshiselwa lize life. Isetshenziswe kuphela kuma-transformer acwiliswe uwoyela angu-110kV nangaphezulu eminyakeni yakamuva.

5. Isilondolozi samafutha se-transformer ecwiliswe ngamafutha

I-oil conservator ye-transformer inemisebenzi emibili, enye iwukunikeza isikhala sokunwetshwa kokushisa kanye nokunciphisa amafutha e-transformer ku-tank yamafutha; enye iwukuhlukanisa uwoyela we-transformer emkhathini wangaphandle ukuvimbela uwoyela we-transformer ekugugeni.

1. Isilondolozi samafutha sohlobo lwe-Capsule, esisebenzisa amaphilisi enjoloba ukuze sihlukanise uwoyela we-transformer emkhathini wangaphandle, futhi sinikeza isikhala sokunwetshwa okushisayo nokufinyezwa kwamafutha e-transformer.

2. Isilondolozi sikawoyela we-diaphragm sisebenzisa i-diaphragm yerabha ukuze sihlukanise uwoyela we-transformer nomoya wangaphandle, futhi sinikeza isikhala sokuthi uwoyela we-transformer andise futhi unciphe.

3. Isilondolozi samafutha enziwe uthayela sisebenzisa isandisi sensimbi esakhiwe ngamashidi kathayela ensimbi ukuze sihlukanise uwoyela we-transformer emkhathini wangaphandle, futhi sinikeze uwoyela we-transformer isikhala sokunwetshwa nokufinyela okushisayo. Isilondolozi samafutha kathayela sihlukaniswe izinhlobo ezimbili: uhlobo lwamafutha angaphakathi kanye nohlobo lwamafutha angaphandle. Uhlobo lwamafutha angaphakathi lunokusebenza okungcono kodwa umthamo omkhulu.

6. Indlela yokupholisa ye-transformer efakwe ngamafutha

1. Izimpawu ezimelela izindlela zokupholisa

Uhlamvu lokuqala: Uwoyela we-mineral, i-K—synthetic insulating fluid, L—gas evikelayo.

Incwadi yesibili: N - ukujikeleza kwe-convection yemvelo, F - ukujikeleza kwamafutha okuphoqelekile, D - ukujikeleza komhlahlandlela okuphoqelelwe.

Incwadi yesithathu: A - air, W - amanzi.

Incwadi yesine: N - i-convection yemvelo, F - ukujikeleza okuphoqelekile (fan, futha).

2. Izibonelo

I-ONAN—Ukupholisa Kwamahhala

I-ONAF - ukupholisa umoya

I-OFAF—Ukupholisa Umoya Wokuzungeza Uwoyela Ngempoqo

I-ODAF—Ukupholisa Okuqondiswa Kokuzungeza Uwoyela Ngempoqo

Eyisikhombisa, i-transformer bushing

1. I-porcelain insulating bushing ehlanzekile engu-40kV nangaphansi

Lolu hlobo lwe-casing lunezakhiwo ezimbili zohlobo lwenduku yomhlahlandlela kanye nohlobo lwekhebula. Uhlobo lwenduku yomhlahlandlela lusetshenziselwa ama-low-voltage bushings of transformers; uhlobo lwekhebula lusetshenziselwa imigqa ephumayo engu-10~20kV yamandla kagesi aphezulu.

2. I-high current bushing engu-40kV nangaphansi

Lolu hlobo lwe-bushing lunezinhlobo ezimbili zezakhiwo: uhlobo lwenduku yomhlahlandlela kanye nohlobo lwe-capacitive. Uhlobo lwenduku yomhlahlandlela oluhlanzekile lwe-ceramic bushing lusetshenziselwa ukuphuma kwama-voltage aphansi kwama-medium-capacity generator transformers; i-capacitive bushing isetshenziselwa ukuphuma kwe-low-voltage emazombezombe ama-generator ama-generator amakhulu.

3. I-oil-paper capacitive bushing engu-66kV nangaphezulu

I-insulation yangaphakathi yalo mkhono i-capacitor core eyenziwe ngephepha le-insulating kanye ne-aluminium foil elimele ngokushintshana. I-capacitor core kanye nomkhono we-porcelain ugcwele uwoyela we-insulating. Ukuxhumana phakathi komkhono kanye nokujikajika kunezinhlobo ezimbili zohlobo lwenduku yomhlahlandlela kanye nohlobo lwekhebula. uhlobo lwesakhiwo. I-oil-paper capacitor core ilinyazwe ngokushintshana eshubhuni eliwugqinsi ngephepha lekhebula eliwugqinsi elingu-0.08~0.12mm kanye nefoyili ye-aluminium ewugqinsi engu-0.01mm.

4. I-tape-paper capacitive bushings engu-66 kV nangaphezulu

I-insulation yangaphakathi yalo mkhono i-capacitor core eyakhiwe ngokushintshana kwephepha lokunamathisela elijikayo kanye ne-aluminium foil. I-capacitor core kanye nomkhono we-porcelain ugcwele uwoyela we-insulating, futhi ingxenye engezansi yomkhono ayidingi umkhono we-porcelain. Kodwa-ke, i-tanδ yalolu hlobo lwe-casing inkulu, futhi iphepha lokunamathisela lilula ukuqhekeka futhi likhiphe uketshezi oluncane, futhi ukukhiqizwa kumisiwe okwamanje.

5. I-resin cast capacitor bushing

I-insulation eyinhloko yalo mkhono iwumgogodla we-capacitor owakhiwe ngokushintshana kwephepha le-insulating ne-aluminium foil, futhi i-epoxy resin ithululelwa ngaphandle ukuze ibe umkhono oqinile wokuvikela. Lolu hlobo lwe-bushing lungasetshenziswa njenge-oil-gas bushing, ingxenye engaphezulu isethwe epayipini le-GIS, futhi igesi ye-SF6 igcwaliswa phakathi; ingxenye engezansi icwiliswe emafutheni e-transformer.

8. Indlela yokulawula i-voltage ye-transformer yamandla

1. Indlela yokulawula ugesi

Kunezinhlobo ezimbili zezindlela zokulawula i-voltage kuma-transformer: ukulawulwa kwe-voltage engeyona i-excitation kanye ne-on-load voltage regulation. I-non-excitation voltage regulation, eyaziwa nangokuthi i-no-load voltage regulation, ukulawula i-voltage lapho i-transformer imisiwe futhi ngaphandle komthwalo; Idivaysi yokulawula i-voltage enga-excitation ibizwa ngokuthi i-no-load tap-changer; idivayisi yokulawula i-voltage ekulayishweni ibizwa ngokuthi i-on-load tap-changer.

2. Isikhundla sokulawulwa kwe-voltage ekulayishweni

Kunezinhlobo ezintathu zezindawo zokulawula i-voltage ekulayishweni kwe-transformer: ukulawulwa kwamandla kagesi aphakathi nendawo, ukulawulwa komugqa kagesi wokuphela komugqa we-voltage kanye nokulawula ukulawulwa kwamandla kagesi wamakhoyili aphezulu. Phakathi kwazo, ukwakheka kanye nenqubo ye-neutral point voltage regulation ilula, futhi kunezinhlelo zokusebenza eziningi.

3. Iswishi yokulawula i-voltage ekulayishweni

Iswishi elawula ukucindezela iphinde ibe isiguquli sempompi. Njengamanje, ikhwalithi yabashintshi bompompi abalayishwayo abakhiqizwa ekhaya ayilungile ngokwanele, futhi iningi labashintshi bempompi abalayishwayo bathembele ekuthengisweni kwamanye amazwe, okunye kwakho okungeniswa kwamanye amazwe kusuka ku-German MR kanye ne-Swedish ABB.

Isishiyagalolunye, amafutha e-transformer

1. Ukwakhiwa kwamafutha e-transformer

Uwoyela we-Transformer uwoyela wamaminerali, okuyingxube yama-molecule amaningi e-hydrocarbon anesisindo samangqamuzana ahlukene, okuyizinhlanganisela ze-hydrocarbon ikakhulukazi njengama-alkanes, ama-naphthenes kanye nenani elincane lama-hydrocarbon anephunga elimnandi.

 2. Umsebenzi kanye nebanga lamafutha e-transformer

Amafutha e-Transformer kawoyela wokuvikela ama-transformer acwiliswe ngamafutha. Amafutha e-Transformer awagcini nje ngokusebenza kwe-insulation, kodwa futhi anomsebenzi wokukhipha ukushisa.

Amafutha e-Transformer ahlukaniswe ngamafutha angu-No. 25 kanye no-oyela No. Iphuzu lokuqandisa lamafutha angu-No. 25 liyi-minus 25°C; indawo eqandayo kawoyela onguNombolo 45 isusa u-45°C.

Amafutha e-transformer No. 25 angamafutha asekelwe kupharafini, kanti uwoyela we-transformer No. 45 uwoyela we-naphthenic. Esikhathini esedlule, uwoyela we-transformer ongunombolo 45 bekufanele ungeniswe ngaphandle, futhi manje i-Xinjiang Karamay Refinery nayo ingawukhiqiza.

10. Inqubo yokukhiqiza ye-transformer yamandla

I-transformer yamandla iqukethe izingxenye ezimbili: umzimba kanye nezinsiza. Umzimba wakhiwe ikhoyili, izingxenye ezivikelayo, insimbi, i-tap change, uwoyela we-transformer kanye nethangi likawoyela. Izesekeli ze-transformer zihlanganisa isilondolozi samafutha, i-cooler, i-bushing, i-gas relay, i-pressure release kanye ne-thermometer. Phakathi kwazo, ama-cooler, uwoyela ovikela ukushisa, ama-bushings, okushintsha ompompi, ama-gas relay, izinto ezikhipha umfutho kanye nama-thermometers konke kuthengwa ngaphandle. Okulandelayo kuphela kwethula kafushane izinqubo zokukhiqiza izingxenye ezimbalwa ezibalulekile.

1. Ukujika ikhoyili: ukufakwa kohlaka lwamathambo oluvunguzayo - ikhoyili ejikajikayo - i-wire welding - iphakheji yokufaka injula - ukubumba ikhoyili - ukuhlolwa kwekhoyili.

2. I-iron core assembly: ukusika i-silicon steel sheet - deburring - stacking iron core - ukufaka ipuleti lokudonsa nokuvikela - insimbi ebophayo - ukuhlolwa kwe-iron core - ukufaka iziqeshana zensimbi.

3. Ukucutshungulwa kwezingxenye ze-insulation: ukusika izingxenye ze-insulation - deburring - amakhona ama-chamfered - ukwelashwa okungenamswakama.

4. Ukucutshungulwa kwamathangi kaphethiloli namathangi okugcina uwoyela: ukusika ipuleti lensimbi - ukushiselwa kwamathangi kaphethiloli namathangi okugcina uwoyela - ukususwa kokugqwala - ukuqhuma kwesihlabathi - ukudweba kwe-primer - ukudweba - ukuhlolwa kwamandla omshini.

5. Umhlangano ojwayelekile: faka insimbi ewumgogodla - faka ipayipi lethangi likaphethiloli - setha ikhoyili - beka ijoka lensimbi - faka i-tap changer - intambo yokushisela - bopha i-lead insulation - ukuhlolwa komkhiqizo osuphelile - ukomisa umzimba - ukuqeda umzimba - umhlangano wethangi likaphethiloli - ukuhlanganiswa kwezinsiza - Ukugcwaliswa kwamafutha - ukuhlolwa kokuvala - ukujikeleza kwamafutha ashisayo - ukubekwa okumile.

11. Ukuhlolwa kwefekthri kwe-transformer yamandla

Ukuhlolwa kwefekthri kwe-transformer yamandla kuhlukaniswe ngezinhlobo ezintathu: ukuhlolwa okujwayelekile (imboni), ukuhlolwa kohlobo kanye nokuhlolwa okukhethekile. Ukuhlolwa okujwayelekile kuyinto yokuhlola okufanele yenziwe ku-transformer ngayinye lapho iphuma efekthri, futhi ngokuvamile ibizwa ngokuthi ukuhlola kwasembonini; uhlobo lokuhlolwa luyinto yokuhlola eyenziwa ngokuthatha ama-transformer angu-1 ~ 2 ohlotsheni lomkhiqizo; ukuhlolwa okukhethekile kuhlongozwa ngumsebenzisi. , nezinto ezihlolwayo zavumelana nomkhiqizi.

1. Izidingo eziyisisekelo kanye nemithethonqubo yokuhlolwa kokufakwa kwamandla kagesi aphezulu

Ama-windings we-transformer ahlolwa ngokuya nge-voltage ephezulu kakhulu yokusebenza Um kanye nezinga lokufakwa elihambisanayo. Ithebula elilandelayo liyizinto zokuhlola ukufakwa kwe-insulation ezishiwo ezingeni likazwelonke le-GB1094.3-2003 "I-Power Transformer Ingxenye III: Izinga Lokushisisa, Ukuhlolwa Kokushisisa kanye Negebe Lomoya Lokushisisa Wangaphandle" .

2. Izinto zokuhlola ezijwayelekile (zefekthri).

(1) Isilinganiso sokumelana ne-DC esimazombezombe: ukulinganisa kuwo wonke amatheminali kampompi.

(2) Isilinganiso sesilinganiso: linganisa kuzo zonke izindawo zompompi.

(3) Ukutholwa kweqembu lezintambo: isivivinyo endaweni elinganiselwe kampompi.

(4) Isilinganiso sokumelana nokufakwa kwe-insulation, isilinganiso sokumuncwa kanye ne-polarization index: Ama-transformer kuphela angu-220kV nangaphezulu angakala inkomba ye-polarization.

(5) I-tanδ evunguzayo kanye nokuhlolwa kwamandla: 35kV nangaphezulu ama-transformer kufanele ahlolelwe i-tanδ. .

(6) I-Bushing tanδ kanye nokuhlolwa kwekhono: 66kV nangaphezulu kwezihlahla ze-capacitive kufanele kuhlolwe i-tanδ namandla

(7) Ukuhlolwa kukawoyela we-Transformer: ukuhlaziya uwoyela, amandla e-dielectric, i-tanδ, ukuhlaziywa kwe-chromatographic nezinye izinto, ama-750kV nangaphezulu ama-transformer kufanele ahlolelwe usayizi wezinhlayiyana kuwoyela. Ngaphezu kwalokho, ukuhlaziywa kwamakhemikhali kawoyela nokuhlaziywa kwechromatographic kawoyela kwaphindwa kuyo yonke inqubo yokuhlola.

(8) Ukulahlekelwa komthwalo kanye nesilinganiso samanje sokungalayishi: Yenza ukuhlolwa ngaphansi kwezintambo zikagesi ezilinganiselwe.

(9) Isilinganiso sokulahleka komthwalo kanye nokuvinjelwa kwesiyingi esifushane: ukuhlolwa ngaphansi kwezintambo zikagesi ezilinganiselwe.

(10) Ukuhlolwa kokukhishwa kwengxenye: Inani lokukhipha alisetshenziswa njengokuhlola, kodwa kuphela njengereferensi yokuthi ingabe ukuhlolwa kwe-high-voltage kungenziwa yini.

(11) Umbani wokuhlolwa kwegagasi eligcwele: 220kV nangaphezulu, 120MVA nangaphezulu kwama-transformer.

(12) Ukuhlolwa komthelela wokusebenza: ama-transformer angu-330 kV nangaphezulu.

(13) Ukuhlolwa kwe-inductive ukumelana ne-voltage enesilinganiso sokukhipha ingxenye: ama-transformer angu-110 kV nangaphezulu.

(14) Imvamisa yokwakhiwa kwangaphandle imelana nokuhlolwa kwe-voltage yama-low-voltage majika kanye nephoyinti elimaphakathi.

(15) Ukuhlolwa kokukhishwa kwengxenye: Lokhu kuhlola kuwukuhlola kwevelu yokuhlolwa kwasembonini.

(16) Isilinganiso sikagesi sokugeleza kukawoyela: ama-transformer anamaphampu kawoyela angu-330 kV nangaphezulu.

(17) Ukuhlolwa kokukhipha ingxenye yephampu kawoyela ejikelezayo: ama-transformer anepompo likawoyela elingu-330 kV nangaphezulu.

 2. Thayipha izinto zokuhlola

      (1) Ukuhlolwa kokukhuphuka kwezinga lokushisa.

      (2) Igagasi lokunqamula umbani lihloliwe.

      (3) Ukuhlolwa komthelela wegagasi eligcwele lombani endaweni emaphakathi.

      (4) Ukuhlolwa kokuphazanyiswa komsakazo

3. Izinto zokuhlola ezikhethekile

(1) Ukulinganisa izinga lomsindo.

(2) Isilinganiso se-ziro-sequence impedance yama-transformer ezigaba ezintathu.

(3) Isilinganiso esivumelanayo sokungalayishi.

(4) Isilinganiso samandla amuncwa injini yabalandeli kanye nenjini yepompo kawoyela.

(5) Ukulinganisa izici zokudluliswa kwamandla kagesi wesikhashana.

(6) Ukumelana nokuhlolwa kwekhono lesifunda esifushane.

• Unyaka ususunguliwe
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• Imboni Eyinhloko
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• Inani labasebenzi
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• Inani lokukhipha lonyaka
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• Amakhasimende Ahlanganisiwe
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