UHV na iya haɓaka ƙarfin watsa wutar lantarki ta ƙasata sosai.Dangane da bayanan da Hukumar Grid Corporation ta kasar Sin ta bayar, tashar wutar lantarki ta UHV DC na da'ira na farko na iya watsa wutar lantarki kilowatt miliyan 6, wanda yayi daidai da 5 zuwa 6 na wutar lantarki da ake da shi mai karfin kV DC 500, da kuma Nisan watsa wutar lantarki kuma ya ninka na biyu sau 2 zuwa 3.Saboda haka, ana inganta ingantaccen aiki sosai.Bugu da kari, bisa kididdigar da hukumar kula da wutar lantarki ta kasar Sin ta yi, idan aka gudanar da aikin watsa wutar lantarki iri daya, yin amfani da layin UHV zai iya ceton kashi 60% na albarkatun kasa idan aka kwatanta da yin amfani da layukan masu karfin wutar lantarki mai karfin kilo 500. .
Transformers sune kayan aiki masu mahimmanci a masana'antar wutar lantarki da tashoshi.Suna da tasiri mai mahimmanci akan ingancin wutar lantarki da kwanciyar hankali na tsarin aikin wutar lantarki.Matsanancin ƙarfin wutar lantarki suna da tsada kuma suna da nauyin aiki masu nauyi.Don haka, yana da matuƙar mahimmanci a ƙarfafa bincike kan yadda ake tafiyar da su.
Transformer shine zuciyar tsarin wutar lantarki.Yana da matukar muhimmanci a kiyaye da kuma gyara na'urar taswira don tabbatar da ingantaccen aiki na tsarin wutar lantarki.A halin yanzu, tsarin wutar lantarki na kasata yana ci gaba da bunkasa ta hanyar ultra high voltage da kuma babban iko.Rufewa da ƙarfin hanyar sadarwar samar da wutar lantarki suna ƙaruwa sannu a hankali, yana sa masu canza wuta a hankali suna haɓaka a cikin yanayin matsanancin ƙarfin lantarki da babban ƙarfi.Duk da haka, girman matakin na’urar na’urar na’urar, hakan zai kara yawan yuwuwar gazawa, kuma yawan illar da gazawar aikin taransfomar ke haifarwa.Sabili da haka, bincike na gazawar, kulawa da gyaran gyare-gyaren ultra-high da gudanarwa na yau da kullum suna da mahimmanci don inganta kwanciyar hankali da amincin tsarin wutar lantarki.Hawan Yesu zuwa sama yana da mahimmanci.
Tattaunawar Laifi na gama gari Abubuwan da ke haifar da
Laifukan na'urar wutan lantarki mai tsananin ƙarfi galibi suna da rikitarwa.Don tantance kurakuran taransfoma, ya zama dole a fara fahimtar abubuwan da ke haifar da kurakuran taransfoma:
1. Tsangwama ta layi
Tsangwama ta layi, wanda kuma aka sani da layin inrush current, shine mafi yawan sanadin kurakuran taswirar.Yana faruwa ne ta hanyar rufe overvoltage, kololuwar wutar lantarki, kuskuren layi, walƙiya da sauran rashin daidaituwa a cikin watsawa da rarrabawa.
2. Insulation tsufa
Bisa kididdigar da aka yi, tsufa na insulation shine sanadi na biyu na gazawar transfoma.Tsufawar rufewa za ta rage tsawon rayuwar tasfoma da haifar da gazawar taransfoma.Bayanai sun nuna cewa tsufa na rufe fuska zai rage rayuwar taransfoma tare da rayuwar shekaru 35 zuwa 40.matsakaita ya rage zuwa shekaru 20.
3. Yawan lodi
Overload yana nufin aiki na dogon lokaci na taransfoma tare da ƙarfin da ya wuce farantin suna.Wannan yanayin sau da yawa yana faruwa a cikin tashoshin wutar lantarki da sassan amfani da wutar lantarki.Yayin da lokacin aiki mai yawa ke ƙaruwa, yawan zafin jiki zai ƙaru a hankali, wanda ke haɓaka aikin rufewa.Tsufa na abubuwan da aka gyara, tsufa na ɓangaren insulating, da raguwar ƙarfi suna da sauƙi don lalacewa ta hanyar tasirin waje, yana haifar da gazawar transfoma.
4. Shigarwa mara kyau.Ba daidai ba
zaɓin kayan aikin kariya da aikin tsaro na yau da kullun zai haifar da ɓoyayyiyar haɗarin gazawar taransifoma.Gabaɗaya magana, gazawar transfoma sakamakon rashin zaɓi na kayan kariya na walƙiya, shigar da rashin dacewa na relays na kariya da na'urorin da'ira sun fi yawa.
5. Ba daidai ba
gyare-gyare Babu wasu ƙananan gazawar tasfoma da ke haifar da rashin kulawar yau da kullun.Misali, rashin kula da shi yana sa na’urar taransifoma ta zama danshi;Submersible man famfo kiyayewa ba a kan lokaci, sa jan karfe foda da za a gauraye a cikin transformer da tsotsa iska a cikin mummunan matsa lamba yankin;wayoyi mara kyau;sako-sako da haɗin kai da samar da zafi;Mai canza famfo ba ya wurin, da sauransu.
6. Rashin ƙarancin masana'antu
Ko da yake kurakuran taranfoma masu ɗorewa sakamakon rashin ingancin tsari kaɗan ne kawai, kurakuran da wannan dalilin ke haifarwa galibi sun fi tsanani kuma sun fi cutarwa.Misali, ƙarshen wayoyi maras kyau, fakiti mara kyau, rashin walda mara kyau, ƙarancin gajeriyar juriya, da sauransu, galibi ana haifar da lahani na ƙira ko ƙarancin masana'anta.
Tabbatar da kuskure da magani
1. Sharuddan kuskure A
Transformer yana da ƙimar ƙarfin lantarki na (345± 8) × 1.25kV / 121kV / 35kV, ƙarfin 240MVA / 240MVA / 72MVA, kuma babban gidan wutar lantarki yana cikin kwanciyar hankali a baya.Wata rana, an gudanar da bincike na chromatographic mai na yau da kullun na babban tasfoma, kuma an gano cewa abun da ke cikin acetylene a cikin man insulating na babban gidan wuta ya kai 2.3 μl / l, don haka ana ɗaukar samfur sau biyu a rana da yamma. A wannan rana don tabbatar da cewa abun da ke cikin acetylene na mai na transfoma a cikin wannan lokaci ya karu da yawa.Nan da nan ya nuna cewa akwai wani yanayi na fitar da wuta a cikin na’urar, don haka aka rufe babbar taransfoma da sanyin safiyar gobe.
2. Jiyya a wurin
Domin sanin yanayin matsalar taranfomar da wurin da aka fitar, an gudanar da bincike kamar haka:
1) Hanyar halin yanzu, ta hanyar gwajin bugun jini, an gano cewa tare da haɓaka ƙarfin gwajin da haɓaka lokacin gwajin, ƙarfin fitarwa na ɗan canji ya karu sosai.Ƙarfin ƙaddamarwar fitarwa da wutar lantarki na kashewa a hankali suna raguwa yayin da gwajin ya ci gaba;
2) Ma'aunin juzu'i na fitarwa.Ta hanyar nazarin zane-zanen da aka samu, za'a iya tantance cewa sashin fitarwa na injin yana cikin iska;
3) Ultrasonic sakawa na m fitarwa.Ta hanyar gwaje-gwajen firikwensin firikwensin ultrasonic da yawa, firikwensin ya tattara siginonin ultrasonic marasa ƙarfi da marasa ƙarfi lokacin da ƙarfin lantarki ya yi girma, wanda ya sake tabbatar da cewa wurin fitarwa ya kamata a kasance a cikin iska;
4) Gwajin chromatography mai.Bayan gwajin fitarwa na juzu'i, juzu'in juzu'in acetylene ya tashi zuwa 231.44 × 10-6, wanda ke nuna cewa an sami fitar da baka mai ƙarfi a cikin na'urar watsawa yayin gwajin fitar da ɓarna.
3. Fassara dalilin bincike
Bisa ga binciken da aka yi a wurin, an yi imanin cewa dalilan da suka haifar da gazawar fitarwa sune kamar haka:
1) Insulating kwali.Yin sarrafa kwali mai ɗorewa yana da ƙarancin tarwatsawa, don haka kwali mai ɗaukar hoto yana da wasu lahani masu inganci, kuma ana canza rarraba wutar lantarki yayin amfani;
2) Gefen insulation na allon electrostatic na ƙarfin lantarki mai sarrafa nada bai isa ba.Idan radius na curvature ya yi ƙanƙanta, tasirin daidaita wutar lantarki bai dace ba, wanda zai haifar da rushewar fitarwa a wannan matsayi;
3) Kulawar yau da kullun ba ta da kyau.Daskarar kayan aiki, soso da sauran tarkace suma suna daya daga cikin dalilan rashin fitar da ruwa.
Gyaran wutan lantarki
ya ɗauki matakan kulawa kamar haka don kawar da kuskuren fitarwa:
1) An maye gurbin ɓangarorin da aka lalata da kuma tsufa, kuma an gyara madaidaicin madaidaicin madaidaicin wutar lantarki da wutar lantarki mai daidaita wutar lantarki, ta haka ne aka inganta ƙarfin rufewa a can.Ka guje wa lalacewa ta hanyar fitarwa.A lokaci guda kuma, la'akari da cewa babban rufin kuma ya lalace zuwa wani ɗan lokaci yayin aikin rushewa, an maye gurbin duk manyan abubuwan da ke tsakanin ƙananan ƙarfin lantarki da wutar lantarki mai daidaita wutar lantarki;
2) Cire daidaitattun haɗin kebul na allon lantarki.Bude, cire ƙwanƙarar ƙirjin ruwa mai tasowa, ƙara radius na curvature na kusurwa kuma kunsa rufin, don rage ƙarfin filin;
3) Dangane da buƙatun aikin na'ura mai ƙarfi na 330kV, jikin na'urar ta atomatik an nutsar da shi sosai a cikin mai kuma a bushe ba tare da lokaci ba.Dole ne kuma a yi gwajin fitar da wani bangare, kuma ana iya caje shi da sarrafa shi bayan an ci jarabawar.Bugu da kari, don gujewa sake faruwar kurakuran fitar da ruwa, ya kamata a karfafa aikin kula da na’urar taranfoma na yau da kullum, sannan a rika gudanar da gwaje-gwajen chromatography na mai don gano kurakurai cikin lokaci da kuma fahimtar yanayinsu.Lokacin da aka sami kurakurai, yakamata a yi amfani da hanyoyi daban-daban na fasaha don yin hukunci akan kuskuren wurin da kuma ɗaukar matakan gyara cikin lokaci.
A taƙaice dai, abubuwan da ke haifar da na'urar taswirar wutar lantarki mai ƙarfi suna da rikitarwa, kuma ya kamata a yi amfani da hanyoyi daban-daban na fasaha don yanke hukunci yayin jiyya a wurin, kuma a yi nazarin abubuwan da ke haifar da kuskure daki-daki.Duk da haka, ya kamata a lura da cewa matsananci-high irin ƙarfin lantarki na lantarki suna da tsada kuma suna da wuyar kulawa.Don kauce wa gazawar, kulawa da kulawa na yau da kullum ya kamata a yi kyau don rage yiwuwar gazawar.
Lokacin aikawa: Nuwamba-26-2022