1. Injongo kunye neendlela zokusebenzisaisiguquliulondolozo
a. Injongo yokugcinwa kwetransformer
Injongo ephambili yokugcinwa kwetransformer kukuqinisekisa ukuba itransformer kunye nezixhobo zayo zangaphakathi nangaphandle izinto ezisetyenziswayozigcinwa zikwimeko entle, "zilungele loo njongo" kwaye zinokusebenza ngokukhuselekileyo nangaliphi na ixesha. Okubaluleke ngokulinganayo kukugcina irekhodi yembali yemeko yetransformer.
b. Iifomu zokugcinwa kwetransformer
Iitransformer zamandla zifuna imisebenzi eyahlukeneyo yolondolozo lwemihla ngemihla, kuquka ukulinganisa nokuvavanya iiparameter ezahlukeneyo zetransformer. Kukho iindlela ezimbini eziphambili zolondolozo lweetransformer. Senza iqela elinye ngamaxesha athile (elibizwa ngokuba yipreventive maintenance) kwaye elesibini ngokwesiseko esingaqhelekanga (oko kukuthi, xa kufuneka).
2. Ukuhlolwa kokugcinwa kweTransformer rhoqo ngenyanga
– Inqanaba leoyile kwisigqubuthelo seoyile kufuneka lihlolwe inyanga nenyanga ukuze lingawi ngaphantsi komda omiselweyo, ngaloo ndlela umonakalo obangelwa yiyo ungathintelwa.
- Gcina imingxunya yokuphefumla kwityhubhu yokuphefumla ye-silica gel icocekile ukuqinisekisa ukusebenza kakuhle kokuphefumla.
- Ukuba yakhoisiguquli samandlainezihlahla ezizalisa ioyile, qiniseka ukuba ioyile izaliswe ngokuchanekileyo.
Ukuba kuyimfuneko, ioyile iya kuzaliswa kwi-bushing ukuya kwinqanaba elifanelekileyo. Ukuzaliswa kweoyile kwenziwa kwimeko yokuvala.
3. Ukugcinwa nokuhlolwa kwemihla ngemihla
– Funda i-MOG (iMagnetic Oil Meter) yetanki ephambili kunye netanki yokugcina.
- Umbala wejeli yesilika ephefumlayo.
- Ioyile iyavuza nakweyiphi na indawo yetransformer.
Ukuba inqanaba leoyile alilunganga kwi-MOG, ioyile kufuneka izaliswe kwi-transformer, kwaye itanki yonke ye-transformer kufuneka ihlolwe ukuba ayinawo na umphunga weoyile. Ukuba kufunyaniswe ukuvuza kweoyile, thabatha amanyathelo afunekayo ukuvala umphunga. Ukuba ijeli ye-silica iba pinki kancinci, kufuneka itshintshwe.
4. Ishedyuli esisiseko yonyaka yokugcinwa kwetransformer
– Umsebenzi ozenzekelayo, osebenza kude, kunye nomsebenzi wesandla wenkqubo yokupholisa uthetha ukuba iimpompo zeoyile, iifeni zomoya, kunye nezinye izixhobo zijoyina inkqubo yokupholisa yetransformer kunye nesekethe yokulawula. Ziya kuhlolwa ixesha elingangonyaka. Kwimeko yokungasebenzi kakuhle, phanda isekethe yokulawula kunye nemeko yomzimba yepompo kunye nefeni.
- Zonke ii-bushings ze-transformer mazicocwe ngelaphu elithambileyo lekotoni minyaka le. Ngexesha lokucoca i-bushing kufuneka kujongwe ukuba azinazimfa.
- Imeko yeoyile ye-OLTC iya kuhlolwa minyaka le. Ke ngoko, isampuli yeoyile iya kuthathwa kwivalvu yokukhupha amanzi yetanki ejikajikayo, kwaye le sampuli yeoyile iqokelelweyo iya kuvavanywa amandla e-dielectric (BDV) kunye nokufuma (PPM). Ukuba i-BDV iphantsi, kwaye i-PPM yokufuma iphezulu kunexabiso elicetyiswayo, ioyile engaphakathi kwe-OLTC kufuneka itshintshwe okanye ihluzwe.
- Ukuhlolwa koomatshini kweBuchholziirelayiniukuba kwenziwe minyaka le.
- Zonke izikhongozeli mazicocwe ngaphakathi ubuncinane kanye ngonyaka. Zonke izibane, izifudumezi-moya ziyajongwa ukuze kubonwe ukuba zisebenza ngokuchanekileyo na. Ukuba akunjalo, kufuneka uthathe amanyathelo okulungisa. Zonke iintambo zokulawula kunye neentambo zokudlulisa kufuneka zijongwe ziqine ubuncinane kanye ngonyaka.
- Zonke iirelay, iialamu, kunye neeswitshi zolawulo kunye neesekethe zazo, kwiiphaneli ze-R&C (Control Panel kunye neeRelays) kunye ne-RTCC (Remote Tap Change Control Panel), kufuneka zicocwe ngokucoca ngokufanelekileyo izinto.
- Iipokotho ze-OTI, i-WTI (isalathisi sobushushu beoyile kunye nesibonakaliso sobushushu bekhoyili) kwisiciko esiphezulu se-transformer ekufuneka zijongwe, kwaye ukuba ioyile iyafuneka na.
- Umsebenzi ofanelekileyo weSixhobo sokuKhupha uxinzelelo kunye ne-Buchholz relay kufuneka uhlolwe rhoqo ngonyaka. Ke ngoko, izixhobo ezingentla zifinyezwa ngocingo oluncinci kwaye zijonge ukuba ii-relay ezinxulumeneyo kwiphaneli yokulawula kude zisebenza ngokuchanekileyo na.
- Ukumelana nobushushu be-transformer kunye ne-polarity index kufuneka kujongwe nge-megger esebenza ngebhetri ye-5 kV.
- Ixabiso lokumelana koqhagamshelo lomhlaba kunye ne-rizer kufuneka zilinganiswe minyaka le nge-clamp kwimitha yokumelana nomhlaba.
- Uhlalutyo lwe-DGA okanye igesi enyibilikisiweyo yeoyile ye-transformer kufuneka lwenziwe minyaka le kwii-transformer ze-132 kV, kube kanye kwiminyaka emi-2 kwii-transformer ezingaphantsi kwe-132 kV, iminyaka emibini kwii-transformer ezikwi-transformer ye-132 kV.
Amanyathelo amele athathwe kanye kwiminyaka emibini:
Ukulinganiswa kwe-OTI kunye ne-WTI kufuneka kwenziwe kanye emva kweminyaka emibini.
I-Tan kunye ne-delta; Ukulinganiswa kwee-bushings ze-transformer kuya kwenziwa kanye kwiminyaka emibini
5. Ukugcinwa kwetransformer ngokwesiqingatha sonyaka
I-power transformer yakho kufuneka ivavanywe rhoqo emva kweenyanga ezintandathu ukuze ijonge i-IFT, i-DDA, i-flash point, umxholo we-sludge, i-asidi, umxholo wamanzi, amandla e-dielectric, kunye nokumelana neoyile ye-transformer.
6. Ukugcinwa kweIsiguquli sangoku
Iitransformer zangoku ziyinxalenye ebalulekileyo yazo naziphi na izixhobo ezifakwe kwisikhululo setransformer samandla ukukhusela nokulinganisa umbane.
Amandla okukhusela ubushushu CT kufuneka ihlolwe minyaka le. Kwinkqubo yokulinganisa ukumelana nokufakwa kombane, kufuneka kukhunjulwe ukuba kukho amanqanaba amabini okufakwa kombane kwiitransformer zangoku. Inqanaba lokufakwa kombane kwi-CT yokuqala liphezulu, njengoko kufuneka imelane ne-voltage yenkqubo. Kodwa ii-CT zesibini zinenqanaba eliphantsi lokufakwa kombane ngokubanzi eliyi-1.1 kV. Ke ngoko, i-primary to secondary kunye ne-primary to the earth yeetransformer zangoku zilinganiswa ngee-meggers ze-2.5 okanye ze-5 kV. Kodwa le megger ye-voltage ephezulu ayinakusetyenziswa kwiimilinganiselo zesibini kuba inqanaba lokufakwa kombane liphantsi ngokwembono yezoqoqosho yoyilo. Ke ngoko, i-insulation yesibini ilinganiswa ngee-500 V megger. Ke ngoko, i-terminal yokuqala emhlabeni, i-terminal yokuqala kwi-core yokulinganisa yesibini, kunye ne-terminal yokuqala kwi-core yesibini ekhuselayo zilinganiswa ngee-meggers ze-2.5 okanye ze-5 kV.
Ukuskena umbono we-thermo kwi-terminals eziphambili kunye ne-dome ephezulu ye-CT ephilayo kufuneka kwenziwe ubuncinane kanye ngonyaka. Olu skena lungenziwa ngoncedo lweKhamera yokujonga ubushushu ye-Infrared.
Zonke ii-CT secondary connections kwi-CT secondary box nakwi-CT junction box kufuneka zihlolwe, zicocwe, kwaye ziqiniswe minyaka le ukuqinisekisa ukuba indlela ye-CT secondary esezantsi iyasebenza. Kwakhona, qiniseka ukuba ibhokisi ye-CT junction icociwe ngokuchanekileyo.
Iimveliso ze-MBT Transformer
7. Ukugcinwa konyaka kweisiguquli sevolthiii-s okanye ii-capacitor voltage transformers
Isigqubuthelo seporcelain masicocwe ngempahla yekotoni.
Ukuhlanganiswa kwesithuba sentlantsi kuza kuhlolwa rhoqo ngonyaka. Susa indawo eshukumayo yesithuba sentlantsi xa udibanisa, coca i-electrode ye-braes ngephepha lokusila, uze uyilungise kwakhona endaweni yayo.
Indawo yokumisa umhlaba ephindaphindekayo kufuneka ihlolwe ngokubonakalayo rhoqo ngonyaka ukuba ingxaki ayisetyenziselwa i-PLCC.
Iikhamera zokubona ubushushu zisetyenziselwa ukujonga naziphi na iindawo ezishushu kwii-capacitor stacks ukuqinisekisa ukuba zilungiswa ngobuchule.
Uqhagamshelo lwesiphelo Ibhokisi ye-PT junction inee-ground connections ezivavanyiweyo ukuba ziqinile kanye ngonyaka. Ngaphandle koko, ibhokisi ye-PT junction kufuneka icocwe ngokufanelekileyo kanye ngonyaka.
Imeko yazo zonke ii-gasket joints nayo kufuneka ijongwe ngamehlo kwaye itshintshwe ukuba kufunyenwe izitywino ezonakeleyo.
Ixesha lokuthumela: Juni-01-2021