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Relay na Tsari Mai Yawa

Encyclopedia
Encyclopedia
فیلڈ: Dakilin ƙasashen ilimi
0
China

Takaitaccen

Relay ta hanyar tsakiyar da ke kadan zai iya kiran al'adu masu shirya na tsohon dabbobi. Aikin da ya fiye shine kiran maimakon da jeneratomin da turbinuka suka samun karfi guda saboda tsakiyar masu shirya, wanda ake faruwa saboda abubuwan yanki mai shirya. Idan wannan yanki suna faru, za mu iya yi karshen kasa da karshen adadin kasa a cikin maimakon, wanda zai iya haifar da sararin da ba suka dogara daidai idan ba a kawo amfani.

Addinin Kudanci da Nau'o'i

Relay ta hanyar tsakiyar da ke kadan yana da filtar mai mahimmanci wanda yake jawabi ne bayan tsakiyar masu shirya mai kan waɗannan a tsohon dabbobi. Saboda haka, akwai abubuwan yanki mai shirya masu inganci da ke biyo da za su iya haifar da halittu mai karfi a cikin maimakon, an sanya relay ta da sauki mai yawa. Wannan ya ba shi da kyau zuwa duba da tabbatar da abubuwan tsakiyar masu shirya a lokacin da suka faruwa, idan ba su kawo amfani da tushen babban yanki.

Idan relay ta hanyar tsakiyar da ke kadan yana da ƙananan, wannan ƙananan yana da muhimmanci don kiran abubuwan yanki mai yadda. Amma ba su da muhimmanci a kan kiran abubuwan yanki mai shirya; amma, aikinsu shine duba da tsakiyar masu shirya wanda suka faruwa saboda abubuwan yanki mai shirya, don in kawo amfani da tushen babban yanki.

Fanin Inganci

Fanin inganci na relay ta hanyar tsakiyar da ke kadan ana nuna a takardun da aka baka. Tana da waɗannan impedansu masu la'akari Z1, Z2, Z3, da Z4, wadanda suka shiga a kan filtar mai girman bridge. Waɗannan impedansa suka jagoranci a kan transformasi mai yanki, wanda suke ƙaramshi yanki daga tsohon dabbobi. Coil mai amfani na relay ta shiga a kan mid-point na filtar mai girman bridge. Yawan fanin inganci na wannan relay ya ba shi da kyau zuwa duba da tsakiyar masu shirya, wanda yake haifar da karshen kasa da karshen adadin kasa a cikin maimakon, don in kawo amfani da tushen babban yanki a tsohon dabbobi.

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A cikin filtar na relay ta hanyar tsakiyar da ke kadan, Z1 da Z3 suna da kamarci mai kasa, amma Z2 da Z4 suna da kamarci mai kasa da kamarci mai karfi. Dabamai na impedansu Z2 da Z4 suka gina da ƙwarewa don in iya faɗi yanki da ke shiga a kan Z2 da Z4 daga yanki da ke shiga a kan Z1 da Z3 da ƙwarewar 60 digiri.

Idan yanki ya shiga a kan junction A, yana zama I1 da I4. Yanki I4 yana ƙwarewa I1 da ƙwarewar 60 digiri. Wannan ƙwarewar digiri na musamman yana da muhimmanci don addinin kudanci na relay ta hanyar tsakiyar da ke kadan, wanda yake haifar da tsakiyar masu shirya a cikin tsohon dabbobi.

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Duk da haka, yanki daga phase B ta zama a kan junction C zuwa I3 da I2, inda I2 yana ƙwarewa I3 da ƙwarewar 60º.

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Yanki I4 yana ƙwarewa I1 da ƙwarewar 30 digiri. Duk da haka, I2 yana ƙwarewa IB da ƙwarewar 30 digiri, amma I3 yana kada IB da ƙwarewar 30 digiri. Yanki da ke shiga a kan junction B yana da muhimmanci ga addinin kudanci na relay ta hanyar tsakiyar da ke kadan, wanda yake haifar da tsakiyar masu shirya a cikin tsohon dabbobi.image.png

Yadda Yanki Mai Tsakiyar Da Ke Kadan Ya Zama

Takardun da ke nuna yanki mai tsakiyar da ke kadan ana nuna a cikin takarda. Idan abin da ke shiga yana da balanse, yanki mai tsakiyar da ke kadan ba za a faru ba. A lokacin da wannan, yanki da ke shiga a kan relay yana da muhimmanci don in kawo amfani da tushen babban yanki a tsohon dabbobi.

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Kudancin Inganci a Lokacin Balanse

Saboda haka, relay ta hanyar tsakiyar da ke kadan yana da muhimmanci don in kawo amfani da tushen babban yanki a tsohon dabbobi, don in kawo amfani da tushen babban yanki a tsohon dabbobi.

Yadda Yanki Mai Tsakiyar Da Ke Kadan Ya Zama

Kamar yadda aka nuna a cikin takarda, yanki I1 da I2 suna da kamar ma'ana. Suna kada da kuma suna kawo karfi. Saboda haka, faɗin yanki IY ne da ke shiga a kan coil mai amfani na relay. Don in kawo amfani da tushen babban yanki, sauki mai yawa na relay ta hanyar tsakiyar da ke kadan yana da muhimmanci don in kawo amfani da tushen babban yanki.

Yadda Yanki Mai Tsakiyar Da Ke Ƙarfin Ƙofin Mai Tsakiyar Da Ke Kadan Ya Zama

A lokacin da yanki mai tsakiyar da ke ƙarfin ƙofin mai tsakiyar da ke kadan, yanki I1 da I2 suna ƙwarewa ƙwarewar 60 digiri. Muhimmin yanki na biyu yana da muhimmanci ga addinin kudanci na relay ta hanyar tsakiyar da ke kadan. Don in kawo amfani da tushen babban yanki, yana da muhimmanci in kawo amfani da tushen babban yanki.

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Relay Ta Hanyar Tsakiyar Da Ke Kadan Na Induction Type

Fanin inganci na relay ta hanyar tsakiyar da ke kadan na induction type yana da muhimmanci ga addinin kudanci na relay. Tana da disc mai alumini, wanda yake shiga a kan electromagnets uku: electromagnet mai fata da electromagnet mai yamma.

Electromagnet mai fata yana da winding biyu. Winding mai fata na electromagnet mai fata ta shiga a kan secondary side na current transformer (CT) wanda ta shiga a kan line. Winding na biyu na electromagnet mai fata ta shiga a kan winding na electromagnet mai yamma.

Saboda haka, winding mai fata na relay yana da terminal uku. Phase R, ta shiga a kan CTs da auxiliary transformer, ta shiga a kan upper half na relay, amma phase Y ta shiga a kan lower half. Auxiliary transformer ta ƙara ƙwarewa 120º.

Kudancin Inganci a Lokacin Yanki Mai Tsakiyar Da Ke Kadan

Idan yanki mai tsakiyar da ke kadan, yanki IR da IY suna shiga a kan primary windings na relay. Yanki I’R da I’Y suna da kamar ma'ana. Wannan yana ba relay da kyau zuwa state mai amfani ba.

Kudancin Inganci a Lokacin Yanki Mai Tsakiyar Da Ke Kadan

A lokacin da fault, yanki mai tsakiyar da ke kadan I yana shiga a kan primary winding na relay. Wannan yana ba relay da kyau zuwa kudancin amfani.

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Idan ma'ana fault yanki ta lalace sauki mai yawa na relay, relay ta hanyar tsakiyar da ke kadan zai faru aiki don in kawo amfani da tushen babban yanki a tsohon dabbobi.

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