Transformer thaiv, overload muaj peev xwm thiab lwm yam ntaub ntawv
Txuas 1, luv luv transformer "input" thiab "output" terminals nrog megohmmeter los kuaj nws cov rwb thaiv tsev tsis kam nrog hauv av. 1000V megohmmeter ntsuas, tus nqi kuj yog ntau dua 2M ohms.
2, transformer input, tso zis hluav taws xob kab cross-section thaiv yuav tsum tau raws li qhov yuav tsum tau ntawm qhov loj ntawm tus nqi tam sim no; raws li qhov 2-2.5A/min2 tam sim no ceev configuration yog tsim nyog.
3, input, tso zis peb-theem fais fab kab yuav tsum tau raws li lub transformer davhlau ya nyob twg lub tsheb npav xim daj, ntsuab, liab tau txuas nrog rau A-theem, B-theem, C-theem, nruab nrab xoom kab yuav tsum tau txuas nrog lub transformer. voltage nruab nrab xoom kab, hauv av kab thiab transformer plhaub (xws li transformer chassis yuav tsum tau txuas nrog lub thawv hauv av cim coj mus rau lub) Kos cov input thiab tso zis kab. Paub qhov tseeb.
4, thawj tsis muaj-load energized, soj ntsuam qhov kev xeem input thiab output voltages raws li qhov yuav tsum tau. Nyob rau tib lub sijhawm, saib seb puas muaj qhov txawv txav hauv lub tshuab, xws li suab nrov txawv txav, hluav taws kub, tsw ntxhiab, thiab lwm yam. Yog tias muaj qhov txawv txav, thov disconnect lub input fais fab tam sim ntawd.
5, thaum tsis muaj kev kuaj xyuas tiav thiab ib txwm ua, ua ntej nkag mus rau lub load. Overload peev xwm ntawm qhuav-hom transformer overload muaj peev xwm thiab ambient kub, overload ua ntej lub load (pib load), transformer rwb thaiv tsev kub dissipation thiab tshav kub lub sij hawm tas li, thiab lwm yam, yog tias tsim nyog, tuaj yeem tau txais los ntawm cov chaw tsim khoom ntawmqhuav hom transformeroverload nkhaus. Yuav siv nws lub peev xwm overload li cas? Muaj ob lub ntsiab lus rau kev siv: (1) xaiv los xam lub peev xwm ntawm transformer yuav raug txo kom tsim nyog: muab tag nrho cov kev txiav txim siab rau qhov muaj peev xwm ntawm qee qhov steel dov, vuam thiab lwm yam khoom siv rau lub sij hawm luv luv cuam tshuam overload - sim siv lub peev xwm muaj zog tshaj ntawmqhuav hom transformerthiab txo qhov peev xwm ntawm transformer; rau qee qhov chaw thauj khoom tsis sib xws, xws li teeb pom kev tsaus ntuj thiab lwm thaj chaw loj hauv thaj chaw, kev coj noj coj ua thiab chaw ua si, nrog rau cov cua txias thiab nruab hnub teeb pom kev zoo ntawm cov khw hauv khw thiab lwm yam, koj tuaj yeem siv tag nrho nws cov peev txheej, tsim nyog. txo qis tshaj. Ua kom tag nrho ntawm nws lub peev xwm overload, txo lub peev xwm ntawm lub tshuab hluav taws xob kom tsim nyog, kom lub sijhawm ua haujlwm tseem ceeb hauv kev thauj khoom tag nrho lossis lub sijhawm luv luv. (2) tuaj yeem txo qhov muaj peev xwm standby lossis cov naj npawb ntawm cov chav nyob: nyob rau qee qhov chaw, qhov kev xav tau ntawm cov transformer standby coefficient siab dua, yog li qhov project xaiv ntawm transformer muaj peev xwm, muaj pes tsawg leeg. Thiab kev siv lub peev xwm qhuav kuj sib txawv, nyob rau hauv kev txiav txim siab ntawm nws cov khoom seem tuaj yeem compressed; nyob rau hauv kev txiav txim tus naj npawb ntawm spare units kuj yuav raug txo. Transformer hauv kev ua haujlwm dhau, yuav tsum tau ua tib zoo saib xyuas nws qhov kev ua haujlwm kub: yog tias qhov kub nce mus txog 155 degree (muaj lub tswb ceeb toom) uas yuav tsum tau coj los txo qis kev ntsuas (tso qee qhov me me), txhawm rau xyuas kom meej tias lub ntsiab load ntawm kev ruaj ntseg ntawm lub hwj chim mov.
Kev nyab xeeb kev ua haujlwm thiab kev pab cuam lub neej ntawm cov xaiv qhuav-hom transformer nyob ntawm qhov loj ntawm kev nyab xeeb thiab kev ntseeg tau ntawm rwb thaiv tsev ntawm cov transformer windings. Winding qhov kub siab tshaj qhov ntsuas kub ntawm cov rwb thaiv tsev kom cov rwb thaiv tsev puas tsuaj, yog ib qho laj thawj tseem ceeb uas ua rau lub tshuab hluav taws xob tsis tuaj yeem ua haujlwm zoo, yog li qhov ntsuas kub ntawm lub tshuab hluav taws xob ua haujlwm thiab lub tswb nrov yog qhov tseem ceeb heev. (1) Ntxuam tsis siv neeg tswj: los ntawm cov pre-embedded nyob rau hauv lub low-voltage winding nyob rau hauv qhov chaw kub tshaj plaws ntawm Pt100 thermal thermistor ntsuas kub tsis kam ntsuas qhov ntsuas kub. Transformer load nce, khiav kub nce, thaum winding kub nce mus txog 110 degree, lub kaw lus cia li pib kiv cua txias; Thaum cov cua kub cua kub qis li 90 degree, lub kaw lus cia li nres lub kiv cua. (2) tshaj-kub tswb, mus txawv tebchaws: los ntawm faus nyob rau hauv lub low-voltage winding PTC non-linear thermal kub kuj sau winding los yog core kub teeb liab. Thaum lub transformer winding kub tseem nce, yog hais tias nws nce mus txog 155 degree, lub kaw lus outputs over-temperature tswb ceeb toom; Yog tias qhov ntsuas kub tseem nce mus txog 170 degree, lub tshuab hloov pauv tsis tuaj yeem khiav mus ntxiv, thiab nws yuav tsum xa cov teeb liab dhau qhov kub thiab txias mus rau qhov kev tiv thaiv thib ob, uas yuav tsum ua kom lub transformer mus sai. (3) Kub tso saib system: los ntawm pre-embedded Pt100 thermistor nyob rau hauv lub low-voltage winding los ntsuas qhov kub hloov pauv tus nqi, ncaj qha tso saib qhov kub thiab txias ntawm txhua theem ntawm winding (peb-theem soj ntsuam thiab siab tshaj tus nqi zaub, thiab tuaj yeem sau qhov kub siab tshaj plaws hauv keeb kwm), qhov kub siab tshaj plaws tuaj yeem tso tawm hauv 4-20mA cov zis analog, yog tias koj xav tau xa mus rau cov chaw taws teeb (qhov kev ncua deb tuaj yeem ncav cuag 1200m) lub computer, koj tuaj yeem ntxiv lub computer interface, 1 transmitter, mus txog 31 transformers tuaj yeem saib xyuas tib lub sijhawm. Ib lub transmitter tuaj yeem saib xyuas txog 31 transformers tib lub sijhawm. Lub tswb dhau qhov kub thiab txias ntawm lub kaw lus kuj tseem tuaj yeem ua haujlwm los ntawm Pt100 thermal sensing tsis kam teeb liab, uas ntxiv txhim kho kev ntseeg siab ntawm kev tswj qhov kub thiab kev tiv thaiv.
Hu rau peb Yog xav paub ntxiv
Txij li thaum nws tsim nyob rau hauv 2007, Ryan tau cog lus rau cov kev tsim khoom ntawm transformers. Peb muaj kev nkag siab tob txog cov neeg siv khoom xav tau thiab kev lag luam xav tau rau ntau yam transformers, thiab muab kev pabcuam customized rau cov neeg siv khoom.
Ryan muaj cov txheej txheem tsim khoom ua tiav hauv tsev es tsis txhob tawm ntawm qee cov txheej txheem. Peb nruj me ntsis saib xyuas txhua qhov txuas txuas kom ntseeg tau tias txhua kauj ruam ntawm kev tsim khoom siv hluav taws xob tuaj yeem ua tau raws li 100% kev xav tau zoo.
