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Na'urar juriya ta layi daya
Na'urar juriya mai daidaitawa saitin na'urar zaɓin layi ce ta majalisar juriya da aka shigar a layi daya tare da tsaka-tsakin tsarin kuma an haɗa ta tare da na'urar kashe baka.Mafi inganci da ingantaccen zaɓi na layukan kuskure.A cikin tsarin naɗaɗɗen baka, ana iya amfani da na'urar zaɓin zaɓin layi ɗaya na juriya don cimma daidaiton zaɓi na layi 100%.Na'urar juriya ta layi daya, ko majalisar juriya ta layi daya, ta ƙunshi resistors grounding, high-voltage vacuum connectors, transformers na yanzu, siginar sigina na yanzu da tsarin jujjuyawa, tsarin sarrafa juriya, da tallafawa tsarin zaɓin layi.
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Generator tsaka tsaki batu grounding juriya majalisar
An shigar da majalisar juriya mai tsaka-tsaki na janareta na Hongyan tsakanin tsaka tsaki na janareta da ƙasa.A lokacin aikin janareta, saukar da ƙasa lokaci ɗaya shine mafi yawan kuskuren, kuma wurin kuskuren zai ƙara faɗaɗa lokacin da aka kunna harbi.Lalacewar insulation na Stator winding ko ma ƙarfen ƙarfe yana konewa da ɓacin rai.A duniya baki daya, don kurakuran ƙasa lokaci-lokaci a cikin tsarin janareta, babban juriya na ƙasa a tsaka-tsaki na janareta ana amfani dashi sosai don iyakance halin yanzu na ƙasa da kuma hana haɗarin wuce gona da iri iri-iri.Za'a iya ƙaddamar da tsaka-tsakin tsaka-tsakin ta hanyar resistor don iyakance kuskuren halin yanzu zuwa ƙimar da ta dace, inganta ma'anar kariyar relay da yin aiki a kan raguwa;a lokaci guda, ƙananan ƙonawa na gida ne kawai na iya faruwa a wurin kuskure, kuma ƙarfin juzu'i yana iyakance ga ƙarfin lantarki na yau da kullun.2.6 sau na tsaka-tsaki mai tsaka-tsaki, wanda ke iyakance sake kunnawa na arc;yana hana haɓakar ratar arc daga lalata babban kayan aiki;a lokaci guda, zai iya hana haɓakar haɓakar haɓakar ferromagnetic yadda ya kamata, ta yadda za a tabbatar da amintaccen aiki na janareta.
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Transformer tsaka tsaki batu grounding juriya majalisar
A cikin 6-35KV AC grid ɗin wutar lantarki na tsarin wutar lantarki na ƙasata, akwai wuraren tsaka tsaki marasa tushe, waɗanda aka kafa ta hanyar coils na kashe baka, ƙasa mai tsayi, da ƙananan juriya.A cikin tsarin wutar lantarki (musamman tsarin samar da wutar lantarki na cibiyar sadarwa na birane tare da igiyoyi a matsayin babban layin watsawa), ƙarfin wutar lantarki na ƙasa yana da girma, wanda zai iya sa abin da ya faru na "intermittent" arc ground overvoltage yana da takamaiman yanayi "m", wanda ya haifar da arcing. A aikace-aikace na tsaka tsaki batu juriya grounding Hanyar ga tsara grounding overvoltage Forms a fitarwa tashar makamashi (cajin) a cikin grid-to-kasa capacitance, da kuma allura resistive halin yanzu a cikin kuskure batu, yin grounding laifi halin yanzu dauki a kan. yanayin ƙarfin juriya, ragewa da bambancin kusurwar lokaci na ƙarfin lantarki yana rage ƙimar sake kunnawa bayan halin yanzu a wurin kuskure ya ƙetare sifili kuma ya karya yanayin "mahimmanci" na ƙarfin ƙarfin baka, don haka an iyakance yawan wutar lantarki a cikin 2.6. lokutan ƙarfin lantarki na lokaci, kuma a lokaci guda yana ba da garantin kariyar ɓarna mai zurfi ta ƙasa Kayan aiki yana ƙayyade daidai kuma yana yanke kuskuren farko da na biyu na mai ciyarwa, don haka yadda ya kamata ya kare aikin yau da kullun na tsarin.
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Grounding juriya majalisar
Tare da saurin bunƙasa hanyoyin samar da wutar lantarki na birane da ƙauyuka, an sami manyan sauye-sauye a tsarin grid ɗin wutar lantarki, kuma cibiyar rarraba wutar lantarki ta mamaye igiyoyi sun bayyana.Ƙarƙashin ƙarfin ƙarfin ƙasa ya ƙaru sosai.Lokacin da kuskuren ƙasa-lokaci ɗaya ya faru a cikin tsarin, ana samun raguwar kurakuran da za a iya murmurewa.Yin amfani da hanyar daskarewa ba wai kawai ya dace da babban ci gaba da sauye-sauyen buƙatun wutar lantarki na ƙasata ba, har ma yana rage matakan kariya na na'urorin watsa wutar lantarki da maki ɗaya ko biyu, yana rage saka hannun jari na grid ɗin wutar lantarki gabaɗaya.Kashe kuskuren, danne resonance overvoltage, da inganta aminci da amincin tsarin wutar lantarki.
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Damping resistor akwatin
Don hana rashin daidaiton ƙarfin lantarki na tsaka tsaki na tsarin grid daga haɓaka saboda shigarwa da auna ma'aunin murfi na arc lokacin da yanayin ɗimbin gyare-gyaren gyare-gyare yana aiki a ƙarƙashin yanayin al'ada na grid na wutar lantarki. , ana bincike da tsara shi.Lokacin da grid ɗin wutar lantarki ke gudana akai-akai, daidaita inductance na murhun murɗaɗɗen baka zuwa matsayi mai dacewa a gaba, amma a wannan lokacin inductance da ƙarfin amsawa suna kusan daidai, wanda zai sa grid ɗin wutar lantarki a cikin jihar kusa da resonance, haifar da. matsakaicin batu irin ƙarfin lantarki don tashi.Don hana wannan Idan abin ya faru, ana ƙara na'urar damping resistor zuwa na'urar diyya ta baka a cikin yanayin daidaitawa, ta yadda za a murƙushe wutar lantarki ta tsaka tsaki zuwa wurin da ake buƙata da kuma tabbatar da al'ada. aiki na cibiyar sadarwar wutar lantarki.
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Cikakken saitin na'ura mai sarrafa baka mai sarrafa lokaci
Bayanin ka'idar tsari
The lokaci-sarrafawa baka suppression nada kuma ana kiranta "high short-circuit impedance type", wato, da farko winding na baka suppression coil a cikin cikakken na'urar an haɗa zuwa tsaka tsaki batu na rarraba cibiyar sadarwa a matsayin mai aiki winding, da kuma. ana amfani da iska ta biyu azaman iska mai sarrafawa ta hanyar haɗawa biyu masu jujjuyawar. darajar amsawa.daidaitacce.
The conduction kwana na thyristor bambanta daga 0 zuwa 1800, sabõda haka, daidai impedance na thyristor bambanta daga mara iyaka zuwa sifili, da fitarwa diyya halin yanzu za a iya ci gaba da daidaita steplessly tsakanin sifili da rated darajar.
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Capacitance-daidaitacce arc suppression coil cikakken saiti
Bayanin ka'idar tsari
Ƙaƙƙarfan madaidaicin ƙarfin juzu'i na baka shine ƙara ƙarar coil na biyu zuwa na'urar da ke danne baka, kuma ƙungiyoyin capacitor da yawa ana haɗa su a layi daya akan coil na biyu, kuma ana nuna tsarin sa a cikin hoton da ke ƙasa.N1 shine babban iska, kuma N2 shine iska na biyu.Ƙungiyoyin capacitors da yawa tare da vacuum switches ko thyristors an haɗa su a layi daya a gefen sakandare don daidaita ƙarfin ƙarfin ƙarfin gefen capacitor na biyu.Bisa ga ka'idar impedance hira, daidaita capacitive reactance darajar na biyu gefen iya saduwa da bukatar canza inductor halin yanzu na farko gefe.Akwai nau'i-nau'i daban-daban da kuma haɗuwa don girman girman ƙimar ƙarfin da adadin ƙungiyoyi don saduwa da buƙatun daidaitawa da daidaito.
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Cikakkun saitin naɗaɗɗen bias Magnetic arc suppression coil
Bayanin ka'idar tsari
Biasing type arc suppressing coil rungumi dabi'ar wani magnetized baƙin ƙarfe core sashi a cikin AC nada, da kuma Magnetic permeability na baƙin ƙarfe core ana canza ta amfani da DC excitation halin yanzu, don gane ci gaba da daidaitawa na inductance.Lokacin da kuskuren ƙasa-lokaci ɗaya ya faru a cikin grid ɗin wutar lantarki, nan take mai sarrafawa yana daidaita inductance don rama ƙarfin halin yanzu na ƙasa.
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HYXHX jerin na'urar kashe baka mai hankali
A cikin tsarin samar da wutar lantarki na 3 ~ 35KV na ƙasata, yawancin su tsarin tsaka tsaki ne mara tushe.Dangane da ka'idodin ƙasa, lokacin da ƙasa mai hawa ɗaya ta faru, ana barin tsarin ya yi aiki tare da kuskure na sa'o'i 2, wanda ke rage yawan farashin aiki da inganta amincin tsarin samar da wutar lantarki.Duk da haka, saboda karuwa a hankali a cikin ƙarfin samar da wutar lantarki na tsarin, yanayin samar da wutar lantarki shine Layin sama yana canzawa a hankali zuwa layin kebul, kuma ƙarfin halin yanzu na tsarin zuwa ƙasa zai zama babba sosai.Lokacin da tsarin ya kasance ƙasa-daki-daki-ɗaki, baka da aka kafa ta hanyar wuce kima na halin yanzu ba shi da sauƙin kashewa, kuma yana iya yiwuwa ya rikiɗe zuwa ƙasan baka.A wannan lokacin, ƙarfin jujjuyawar wutar lantarki da ferromagnetic resonance overvoltage mai sha'awar shi zai zama Yana matukar yin barazana ga amintaccen aikin grid ɗin wutar lantarki.Daga cikin su, ƙarfin juzu'i na arc-ƙasa na lokaci-lokaci shine mafi tsanani, kuma yawan ƙarfin ƙarfin lokaci na lokaci mara kuskure zai iya kaiwa sau 3 zuwa 3.5 na al'ada na aiki na zamani.Idan irin wannan babban ƙarfin wutar lantarki ya yi aiki a kan grid ɗin wutar lantarki na sa'o'i da yawa, babu makawa zai lalata rufin kayan lantarki.Bayan sau da yawa na lalacewa ta hanyar lalata kayan lantarki, wani wuri mai rauni zai kasance mai rauni, wanda zai haifar da haɗari na rushewar ƙasa da gajeren kewayawa tsakanin matakai, kuma a lokaci guda yana haifar da rushewar kayan lantarki (musamman). rushewar insulation na motar) ), yanayin fashewar kebul, jikewar wutar lantarki yana motsa jikin da ke da ƙarfi don ƙonewa, da fashewar mai kama da sauran hatsarori.
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Cikakkun saitin naɗaɗɗen baka mai daidaitawa
A cikin tsarin hanyar sadarwa na canji da rarrabawa, akwai nau'o'in tsaka-tsaki na tsaka-tsakin hanyoyi guda uku, daya shine tsarin tsaka-tsakin tsaka-tsakin tsaka-tsaki, ɗayan kuma shine tsaka-tsakin tsaka-tsakin ta hanyar arc suppression coil grounding tsarin, ɗayan kuma shine tsaka tsaki ta hanyar juriya. grounding tsarin tsarin.
