UCanwin yiNkampani yeNkampani yoTshintsho lwaMandla kunye noMvelisi woMbane woMbane
Ulwimi
UCanwin yiNkampani yeNkampani yoTshintsho lwaMandla kunye noMvelisi woMbane woMbane
I-Transformer sisixhobo esibalulekileyo esibalulekileyo kwinkqubo yamandla, kwaye ukuthembeka kwayo kokusebenza kunobudlelwane obukhulu kunye nokusebenza okukhuselekileyo nokuthembekileyo kwenkqubo yamandla. Ngokwezibalo ezifanelekileyo, umlinganiselo wengozi yengozi ye-110kV nangaphezulu malunga ne-0.69%, phakathi kwayo, ngenxa yokushisa okungaphezulu kokusebenza kwe-winding, i-insulation igugile, i-winding iyaphulwa, kunye nengozi yokutshiswa kwe-transformer. yenza umlinganiselo omkhulu. Ukukhuselwa kwegesi enzima ekukhuselweni okungewona umbane we-transformer ngokwenene kubonisa ngokungathanga ngqo ukushisa okungaqhelekanga kwe-transformer.
Ingabonwa ukuba umlinganiselo wobushushu be-transformer ubaluleke kakhulu kwisilumkiso sangethuba kunye nentshukumo yangexesha yeengozi ze-transformer.
Ubomi benkonzo ye-transformer buxhomekeke kwiqondo lokushisa elijikelezayo, elidlala indima ebalulekileyo kwizinto ezikhuselayo. Xa ubushushu be-insulation of the winding winding in theUluhlu lweqondo lobushushu le-transformer ye-80 ukuya kwi-130 °C, izinga lokuguga lokuguga liya kuphinda kabini kwi-6 °C yokwanda kweqondo lokushisa, oko kukuthi, ubomi bokugquma buya kuncitshiswa nge-1/2, leyo "umthetho we-degrees ezintandathu" wokuguga.
Ngethuba lokusebenza kwe-transformer, ngokuqhelekileyo kuchazwe ukuba i-85 ° C ngumda weqondo lokushisa eliphezulu leoli. Kwindawo ye-Dongying, xa iqondo lokushisa eliphezulu leoli lifikelela ngaphezu kwe-80 ° C, isibonakaliso se-alarm "i-XX engundoqo ye-alam ye-oyile ye-transformer ephezulu ye-alarm ephezulu" kunye "nokushisa kwe-oyile ye-XX engundoqo" iya kukhutshwa. isilumkiso esiphezulu".
Ukushisa kwee-oyile eziguquguqukayo, zombini ioli ye-transformer kunye ne-winding, inokulinganiswa ngokusebenzisa i-gauge yeqondo lokushisa elifakwe kwi-oyile ye-transformer phezulu kwi-casing. Oku kuvumela ukujonga ubushushu be-transformer jikelele. Njengoko ii-windings ze-transformer zinokuvelisa ubushushu obugqithisileyo ngexesha lokusebenza, zihlala zineqondo lobushushu eliphezulu kuneoyile. Eyona ndawo ishushu ngaphakathi kwi-transformer, eyaziwa ngokuba liqondo lobushushu lendawo eshushu, yeyona nto iphambili ekuqikeleleni ukuguga kwe-insulation. Le ndawo eshushu idla ngokufumaneka kufutshane neziphelo zojiko kodwa kunzima ukuyilinganisa ngokuchanekileyo. Ukubeka iliso kwiqondo lokushisa langaphakathi, isalathisi sokushisa kwe-transformer winding isoloko isetyenziswa endaweni. Ke ngoko, uninzi lweziguquli ezintywiliselwe ngeoyile zixhotyiswe ngeoyile ephezulu kunye negeyiji yobushushu obujikelezayo.
Isalathiso esimnyama kwi-thermometer sibonisa iqondo lokushisa langempela lokusebenza, kwaye isalathisi esibomvu sibonisa iqondo lokushisa elisezantsi le-alarm. Xa ukushisa kweoli kwinqanaba eliphezulu le-transformer lidlula eli xabiso, liya kuba yi-alarm, izikhombisi ezimbini zingqubuzana ukwenza unxibelelwano lombane, kwaye i-alarm signal iya kukhutshwa, kwaye kukho i-protrusion kwinaliti ebomvu. Xa ukushisa kweoli kudlula ubushushu obuphezulu ngexesha lokusebenza, isalathisi esimnyama siya kuqhuba inaliti ebomvu. I-pointer ijikeleza, ngeli xesha inaliti ebomvu ibonisa ukushisa okuphezulu okufikelelwe ngexesha lokusebenza
Iubushushu bomoya kwi-transformerinokuthathwa njengeyona ndawo iphezulu yobushushu be-oyile yomgangatho ophezulu we-transformer kunye nokunyuka kweqondo lokushisa lokujikeleza kwioli. Ngokuqhelekileyo, umthwalo wangoku we-transformer wongezwa ngesiseko senkqubo yokulinganisa ubushushu be-oyile ye-transformer, kwaye ukunyuka kwamaqondo okushisa kwe-oyile kulinganiswa yindlela yokulinganisa i-thermal, ukuze ekugqibeleni ufumane isalathisi sokushisa kwe-transformer. Umzobo wesicwangciso sendlela yokuphunyezwa ethile uboniswe kulo mzobo ulandelayo.
Iqondo lobushushu elijikajikayo le-oyile elintywiliselwa kwi-Tw lingalingana noku:
Tw=T0+k*△Zimbini
Kwifomula, i-T0 yiqondo lokushisa kwe-oyile yomgangatho ophezulu we-transformer, △Izimbini ngumahluko we-oyile ye-oyile yobhedu, efunyenwe ngokulinganisa i-thermal, i-k yi-coefficient ye-thermal, ehambelana nomthamo we-transformer, isakhiwo somoya, njl. Ukunyuka kwamaqondo obushushu bokujikela kwi-oyile △Okubini kuxhomekeke ekuhambeni kokujija. yangoku edlulayo.
Inkqubo yokulinganisa ubukhulu becala yenziwe ngepakethe yokubona ubushushu, i-transformer winding yokulinganisa ubushushu besiphaluka sembuyekezo, kunye ne-sensor. Phakathi kwabo, imbuyekezo yokulinganisa ubushushu sesekethe kunyeisivamvo sobushushu esijikajikayo siguquli zonke zikwipakethe yokuva amaqondo obushushu, kwaye iphakheji yokuva ubushushu intywiliselwa kwi-oyile ephezulu ye-transformer ukuva ubushushu be-oyile ephezulu. Inzwa iqulethwe ngamacandelo amabini: inzwa yobushushu eqhagamshelwe kwiqondo lobushushu lendawo kwi-transformer mechanical meter, ixabiso leqondo lobushushu eliqokelelweyo libonakaliswa kwipleyiti yesalathisi sobushushu; i-Pt100 ukumelana ne-thermal, ixabiso layo lokuchasana litshintsha ngokutshintsha kweqondo lokushisa, ixabiso lobushushu eliqokelelweyo lisetyenziselwa ukuthumela inkqubo yokujonga i-Background monitoring yekhompyutha.
Ulwazi lobushushu be-oyile lugqithiselwa kwiziko lokuthunyelwa kwe-oyile ngendlela yoqhagamshelo eboniswe kumzobo ongezantsi ukuze kuqwalaselwe iliso lexesha lokwenyani lobushushu obuphezulu be-oyile kunye nobushushu obujikelezayo.
1. Indlela yokugweba ukuba utshintsho lweqondo lokushisa lwe-transformer luqhelekileyo okanye aluqhelekanga?
Ngelixa i-transformer isebenza, ilahleko yamandla kumbindi wentsimbi kunye ne-windings iguqulwa ibe bubushushu. Oku kubangela ukunyuka kwamaqondo obushushu kuzo zonke iindawo ezahlukeneyo ze-transformer, ezithi emva koko zichithe ngemitha kunye nokuqhuba. Emva kokuba ibhalansi ifikeleleke phakathi kokuveliswa kobushushu kunye nokuchithwa, ubushushu buzinza kwicandelo ngalinye. Ubungakanani belahleko yentsimbi buhlala buhambelana ngelixa ilahleko yethusi iyahluka ngokuxhomekeka kumthwalo. Ukuvavanya ukusebenza kwe-transformer, qaphela ubushushu bangaphandle, ubushushu be-oyile ephezulu, umthwalo, kunye nokuphakama kwenqanaba leoli ngexesha lokuhlolwa. Ezi xabiso zinokuthelekiswa nokufundwa kwangaphambili ukugqiba ukuba i-transformer isebenza ngokufanelekileyo.
Ukuba ukushisa kweoli kungaphezulu kwe-10 ° C xa kuthelekiswa nokuqhelekileyo kwiimeko ezifanayo, okanye ukuba izinga lokushisa liqhubeka likhuphuka ngaphandle kokutshintsha komthwalo kunye nesixhobo sokupholisa sisebenza ngokuchanekileyo, oku kubonisa umcimbi wangaphakathi kunye ne-transformer. Kubalulekile ukujonga naziphi na iimpazamo okanye ukungaphumeleli kwi-thermometer. Eyona nto iphambili yokugquma ii-transformers (eyaziwa ngokuba yi-Class A insulation) yenziwe ngephepha kwaye inokumelana namaqondo obushushu ukuya kutsho kwi-105°C. Ngokuqhelekileyo, iqondo lokushisa elijikelezayo liya kuba ngu-10-15 ° C ngaphezu kweqondo lokushisa eliphezulu leoli. Umzekelo, ukuba umphezulu we-oyile ulinganisa i-85 ° C, ngoko ulindele ubushushu obujikelezayo phakathi kwe-95-100 ° C.
2. Izizathu zokushisa okungaqhelekanga kwe-transformer
① Ubushushu obungaqhelekanga obubangelwa sisiphoso sangaphakathi
Ukuba i-transformer ifumana iimpazamo zangaphakathi, ezifana ne-inter-turn okanye i-inter-layer short circuits, imiba emininzi ingenzeka. Ikhoyili iya kukhupha kwi-enclosure, ibangele ukufudumeza kumalungu angaphakathi okukhokelela. Ukongeza, i-iron core's multi-point grounding inokunyusa ama-eddy currents kwaye ibangele ukushisa. Kwezinye iimeko, ukuvuza okuvuzayo kunokwenza iluphu ngetanki yeoli yentsimbi kwaye kubangele ukugcwala kobushushu. Ukuba kukho ezinye izinto ezibangela ukushisa okungaqhelekanga kwi-transformer, igesi okanye ukukhuselwa kokwahlukana kunokusebenza. Kwiimeko ezimandundu, i-oyile inokufuna ukutofwa kumbhobho ongaqhushumba okanye ivelufa yokukhulula uxinzelelo. Kule meko, kuyacetyiswa ukuba umise kwaye uhlole i-transformer.
②Ubushushu obungaqhelekanga obubangelwa kukusebenza okungaqhelekanga kwesipholileyo
Ubushushu obungaqhelekanga obubangelwa kukusebenza okungaqhelekanga okanye ukusilela kwesipholileyo, esifana nokucinywa kwempompo engaphantsi kwamanzi, ifeni eyonakeleyo, ukonakaliswa kwemibhobho yokupholisa, ukungasebenzi kakuhle kokupholisa, kunye nokusilela kwevalve yerediyetha ukuvula. Inkqubo yokupholisa kufuneka igcinwe kwaye igungxulwe ngexesha okanye i-cooler yokugcina kufuneka ifakwe, ngaphandle koko umthwalo we-transformer kufuneka ulungelelaniswe.
③ Ukuba isalathisi sokushisa sineempazamo okanye isalathisi asiphumeleli, i-thermometer kufuneka ithathelwe indawo.
