Indlela yokubhekana nephutha le-transformer yamanje?

Umthwalo wesibili we-transformer wamanje uthinta ngokuqondile ukusebenza kwawo okulungile.Ngokuvamile, umthwalo wesibili omkhulu, likhulu iphutha le-transformer.Uma nje umthwalo wesibili ungeqi inani lokusetha lomkhiqizi, umenzi kufanele aqinisekise ukuthi iphutha elikhiqizwe i-transformer lingaphakathi kwezinga lokunemba kwalo noma lingaphakathi kwebanga lejika lephutha elingu-10%.Ngaphakathi.Ngakho-ke, ngesikhathi sokusetshenziswa kwe-transformer yamanje, umthwalo wayo wesibili olinganiselwe kanye nomthwalo wangempela wesibili kufanele waziwe.Kuphela uma umthwalo wesibili wangempela ungaphansi komthwalo wesibili olinganiselwe lapho iphutha lingakwazi ukuhlangabezana nezimfuneko.

Uma iphutha le-transformer yamanje lidlula inani elishiwo lomkhiqizi, lizoba nemiphumela emibi ezintweni zesibili ezifana nokuvikela i-relay kanye nemishini yokukala.Izinyathelo zokunxeshezelwa okufanele zithathwe lapho iphutha le-transformer yamanje lidlula inani elishiwo lomkhiqizi.

(1) Khulisa indawo ephambanayo yekhebula yesibili noma unciphise ubude bekhebula.Ukwandisa indawo ephambanayo yekhebula yesibili yeluphu yamanje noma ukunciphisa ubude bekhebula empeleni kunciphisa ukuvinjelwa kwentambo yesibili yeluphu futhi kunciphisa umthwalo wesibili.

(2) Xhuma ikhoyili yesibili ye-transformer yamanje eyisipele ngochungechunge ukuze ulayishe kabili.Amakhoyili esibili ama-transformer amanje aphakathi kwesigaba anesilinganiso esifanayo sokuguqulwa nezici ezifanayo asetshenziswa ochungechungeni.

(3) Khulisa isilinganiso soguquko se-transformer yamanje noma usebenzise i-transformer yamanje enomthamo wesibili olinganisiwe we-1A.Ngokusho kwesimiso sokuthi ukulahlekelwa komugqa kuhambisana nesikwele samanje, kungabonakala ukuthi ukulahlekelwa komugqa kuba kuncane futhi i-impedance yokuphuma iba nkulu, ngakho-ke umthamo wokuthwala umthwalo uyaqiniswa.

(4) Yehlisa umthwalo wesibili.Khetha i-relay enomthamo omkhulu wokusetha ngangokunokwenzeka, ngoba ububanzi bocingo lwekhoyili edluliselwe nge-current setting current bukhulu futhi inani lokujika lincane, ngakho-ke i-impedance nayo incane;noma uguqule uxhumano lochungechunge lwekhoyili edluliselwe ekuxhumekeni okufanayo, ngenxa yokuthi i-impedance yochungechunge loxhumano I-impedance inkulu kunoxhumano oluhambisanayo;noma usebenzise idivayisi yokuvikela ikhompyutha encane ukuze umiselele i-electromagnetic relay.

Ukuhlolwa kokumelana nokufakwa kwe-transformer yamanje

1. Injongo yokuhlolwa

Ingathola ngempumelelo yonke into engalungile yokuhlanganisa, njengokuswakama, ukungcola, ukungena, ukuqhekeka kwe-insulation, njll., kanye nokushisa ngokweqile kanye nokukhubazeka kokuguga.Ukulinganisa ukumelana nokushisa kwesihlangu sokugcina phansi kungakwazi ukubona ngokuphumelelayo ukungena kwamanzi kanye namaphutha omswakama we-capacitive current transformer.

2. Ububanzi bokuhlola

Linganisa ukumelana nokufakwa kwamajika okuyisisekelo ekujikeni kwesibili kanye ne-casing, kanye nokumelana nokufakwa kwamajika ngakunye kanye ne-casing.

Ukulinganisa ukumelana nokufakwa phakathi kwezingxenye eziyinhloko zokusonta, kodwa akudingekile ukulinganisa lapho kungenakulinganiswa ngenxa yezizathu zesakhiwo.

Linganisa ukumelana nokushisa kwesihlangu sokugcina se-capacitive current transformer.

I-HV Hipot GDHG-306D Transformer Comprehensive Tester
3. Ukukhethwa kwemishini

Linganisa ukumelana nokufakwa phakathi kwe-insulation eyinhloko ye-transformer yamanje, isihlangu sokugcina, ukuvuthwa kwesibili kanye nomhlabathi.Isihloli sokumelana nokufakwa kwe-insulation esingu-2500V nangaphezulu kufanele sisetshenziselwe ukugcinwa noma ukuhlolwa kokunikezelwa kanye nokuhlolwa kokuvimbela.

4. Ukuhlaziywa kwezindawo ezinobungozi kanye nezinyathelo zokulawula

ukuvimbela ukuwa kusuka endaweni ephakeme

Vimbela ukulimala ezintweni eziwayo

ukuvimbela ukushaqeka kukagesi

Ngaphambi kokunqamula nokuxhuma ulayini wokuhlola, isiguquli esingaphansi kokuhlolwa kufanele sikhishelwe ngokuphelele phansi ukuze kuvinjelwe ukushaja okusalayo kanye ne-voltage ebangelwe ukuba ingalimazi abantu futhi ithinte imiphumela yokulinganisa.I-casing yensimbi yethuluzi lokuhlola kufanele isekelwe ngokuthembekile, futhi umhloli osebenzisa ithuluzi kufanele ame phezu kwephedi ye-insulating noma agqoke i-slash evikelayo ukuze asebenzise ithuluzi.Amathoni okuhlola kufanele ahlanganiswe nomuntu ophethe, futhi ukusebenzisana okuphambene akuvunyelwe.

Misa izindawo zokukhosela ezivaliwe endaweni yokuhlola, lenga izimpawu zokuthi “stop, high voltage risk”, futhi uqinise ukuqapha.Qinisa ukugada nokusebenzisa uhlelo lokucula olusebenzayo.

5. Ukulungiselela ngaphambi kokuhlolwa

Qonda izimo zenkundla kanye nezimo zokuhlola zemishini ehlolwayo.

Qedela imishini yokuhlola kanye nemishini

Thatha izinyathelo zokuphepha nezobuchwepheshe endaweni yokuhlola

Abahloli bamabhokisi kufanele bachaze okuqukethwe komsebenzi, izingxenye ezibukhoma, izinyathelo zokuphepha endaweni, izindawo eziyingozi zokusebenza endaweni, futhi bacacise ukuhlukaniswa kwezinqubo zabasebenzi nezokuhlola.

6. Izinyathelo zokuhlolwa kwenkundla nezimfuneko

Hlola i-megohmmeter ngokwayo ngaphambi kokuhlolwa, beka izinga le-megohmmeter ngokuzinzile, ukuhlolwa kokuqala kwesiyingi esifushane bese uhlola isifunda esivulekile, lapho uxhunywe kugesi we-voltage megohmmeter elungisiwe, intambo ye-Uno izoba "L" futhi “E”” itheminali, inkomba kufanele ibe uziro; uma ivuliwe, lapho amandla evuliwe noma isivinini esilinganiselwe sivezwa ngama-megohm, inkomba kufanele ibe “∞”. Uma ufaka izintambo, xhuma itheminali yaphansi kuqala, bese uxhuma i-terminal ye-voltage ephezulu.

Itheminali ethi “E” ku-megohmmeter iyitheminali ephansi yento yokuhlola, okuyipali ephozithivu, futhi “L” iyitheminali yamandla kagesi aphezulu yomkhiqizo wokuhlola, okuyipali enegethivu.U-“G” uxhunywe kutheminali yesihlangu, okuyisigxobo esinegethivu.

7. Ukuhlolwa kokumelana ne-insulation

Linganisa ukumelana nokufakwa kwe-insulation of the primary winding of the current transformer to the second winding and the shell

Linganisa ukumelana nokushisa phakathi kokuvunguza kwesibili kwe-transformer yamanje kanye nomhlabathi

Ukulinganisa ukumelana nokufakelwa kwesihlangu sokugcina se-transformer yamanje

Ukulinganisa ukumelana nokufakwa kwe-insulation of the primary winding

Ama-windings ayisisekelo we-P1 kanye ne-P2 ye-transformer yamanje ane-circuited enezintambo ezimfishane, wonke ama-windings wesibili afinyezwa phansi, futhi isihlangu sokugcina sifinyezwa phansi.(Uma ingaphezulu le-transformer lisinda kakhulu, indandatho evikelayo kufanele ifakwe futhi ixhunywe kutheminali ethi “G” ye-megger ngocingo oluvalekile.)

Itheminali ethi “L” yesihloli samandla kagesi aphezulu sixhunywe kumatheminali ama-P1 kanye ne-P2 ajikajikayo e-transformer yamanje noma ucingo olufushane, futhi itheminali ethi “E” isekelwe phansi.

Ngemva kokuhlola i-wiring, cindezela inkinobho ethi "Qala", futhi imitha iqala ukusebenza.Ngemuva kweminithi elingu-1, inani lokumelana nokufakwa lizorekhodwa.Ngemuva kokuthi ukuhlolwa sekuqediwe, imitha kufanele inqanyulwe kusampula, bese ucindezela inkinobho ethi "stop" ukuze uqalise imitha.

Ekugcineni, khipha ingxenye yokuhlola ye-transformer yamanje.