GE IS200EDEXG1B Exciter De-Excitation Control Board

IS200EDEXG1B wani muhimmin abu ne na kariya a cikin General Electric (GE) EX2100e tsarin sarrafa motsin rai na dijital, na dangin Exciter De-Excitation Control Board (EDEX). Wannan allon shine ainihin allon da'ira na tsarin de-excitation, musamman an ƙera shi don amintacce da sauri don ɓatar da ƙarfin kuzarin da aka adana a cikin iskar filin janareta yayin rufewar gaggawa ko tafiya kuskure. IS200EDEXG1B ya dace da rukunin 1 na nau'in hukumar EDEX, wanda shine SCR (Silicon-Controlled Rectifier) ​​de-excitation sanyi, dace da tsayayyen tsarin tashin hankali da ke buƙatar kashe filin da sauri.

Lokacin rufe janareta na yau da kullun, tsarin motsa jiki yana ciyar da makamashin filin zuwa tushen AC ta hanyar jujjuyawar gada. Koyaya, yayin balaguron gaggawa, mai watsewar filin ko masu tuntuɓar DC (41A/41B) suna buɗewa nan take. Idan makamashin da aka adana a cikin inductance na filin bai bace da sauri ba, zai haifar da ƙarfin lantarki mai tsananin gaske, wanda zai iya yin lahani ga insulation na janareta, gadar wutar lantarki, thyristors, da kayan haɗin gwiwa. Matsayin IS200EDEXG1B shine don haifar da de-excitation thyristor (SCR) daidai a wannan lokacin, kafa hanyar motsa jiki mara ƙarfi ta hanyar juzu'i ko inductor. Wannan yana ba da damar filin halin yanzu ya lalace a ƙimar sarrafawa, amintacce yana sakin makamashin filin azaman zafi.

Matsayin Tsarin da Ƙa'idar Aiki

A cikin EX2100e haɓakar gine-ginen sarrafawa, IS200EDEXG1B an ɗora shi akan tsarin de-excitation a cikin majalisar taimako. Dokokin sarrafa sa sun samo asali daga EAUX (Exciter Auxiliary Interface Board) ko hukumar EXTB. Lokacin da tafiya ta faru, EAUX/EXTB zai fara buɗe mai tuntuɓar 41DC. Canjin yanayin abokan hulɗa na abokin hulɗa yana canzawa zuwa umarnin kashe kashe kuzari, waɗanda aka aika zuwa hukumar IS200EDEXG1B ta hanyar haɗin J8. Bayan karbar umarnin harbe-harbe, hukumar nan da nan ta samar da jirgin kasa mai karfin jujjuyawar murabba'in murabba'in da aka yi amfani da shi a bakin kofar SCR na de-excitation, wanda ya haifar da shi. A wannan lokaci, polarity na iskar filin janareta ya koma baya, yana mai da SCR anode tabbatacce game da cathode. Da zarar SCR ya gudanar, filin na yanzu yana samar da madauki ta hanyar SCR da resistor na fitarwa, yana sa kuzarin ya ɓace cikin sauri.

IS200EDEXG1B an tsara shi tare da da'irori biyu masu zaman kansu masu zaman kansu (daidai da sassan sarrafawa na M1 da M2), kowannensu yana da ikon tukin ƙofar SCR da kansa. Bugu da ƙari kuma, an haɗa tashar harbe-harbe ta uku a kan allo-waɗanda ke yin harbi da kai-wanda ya ƙunshi cibiyar sadarwa ta karya-over diode (BOD) da aka haɗa tsakanin SCR anode da ƙofar. Lokacin da ƙarfin lantarki na anode-to-cathode ya wuce ƙimar da aka saita, cibiyar sadarwar BOD ta lalace ta atomatik, tana jagorantar wutar lantarki zuwa ƙofar kuma ta tilasta SCR cikin gudanarwa. Wannan tsarin 'harbin kai' yana aiki azaman kariya ta ƙarshe, yana tabbatar da cewa aikin kashewa yana aiki da dogaro har ma a cikin matsanancin yanayi na jimlar asarar wutar lantarki da gazawar da'irori na harbe-harbe na yau da kullun, yana haɗar falsafar ƙira mai zurfi.

Babban Fasalolin Aiki

1. Dual-Channel Redundant Triggering da Kariyar Kariya

IS200EDEXG1B tana karɓar umarnin harbe-harbe masu zaman kansu guda biyu (Umurnin harbi don M1 da M2) daga masu kula da M1 da M2 ta hanyar haɗin J8. Kowane umarni yana kunna da'irar harbe-harbe daidai gwargwado, wanda ke haifar da bugun bugun ƙofa mai tsayi. Wuraren biyu sun kasance masu zaman kansu da juna, suna raba ƙofar SCR guda ɗaya, amma kunna ɗayan ɗayan ya isa ya haifar da gudanarwa. A lokaci guda, cibiyar sadarwar diode mai karyawa tana ci gaba da lura da ƙarfin lantarki na SCR anode. Lokacin da ƙarfin lantarki ya wuce saitin wutar lantarki na anode (wanda za'a iya zaba daga 700 V zuwa 3500 V ta hanyar masu tsalle-tsalle na waya a kan masu haɗawa da soket), cibiyar sadarwar BOD tana haifar da kai, tana jagorantar cajin anode zuwa ƙofar da kuma tilasta SCR zuwa wuta. Wannan ƙirar harbe-harbe sau uku-uku yana tabbatar da cikakken amincin aikin de-excitation.

2. Wutar Lantarki Riƙe-Up

Hukumar IS200EDEXG1B tana haɗa Wutar Lantarki na Riƙe-Up. A lokacin aiki na yau da kullun, ana amfani da hukumar ta +24 V DC da -24 V DC kayayyaki. A yayin da aka samu cikakkiyar gazawar wutar lantarki ko asarar wutar lantarki, da'irar riƙon wutar lantarki tana riƙe da ƙarfin lantarki a maɓallan maɓalli a kan jirgi tsawon isa don tabbatar da da'irar harbe-harbe na iya haifar da bugun ƙofa da ake buƙata don kammala tashin hankali. Bugu da ƙari, wannan da'irar tana ba da wutar lantarki na jika don lambobi masu taimako na waje, yana ba da tabbacin cewa za a iya kama umarnin harbe-harbe daidai kuma a kashe shi a nan take na asarar wutar lantarki. Wannan fasalin yana da mahimmanci don tabbatar da amintaccen kashe janareta a ƙarƙashin matsanancin yanayi.

3. Gano Tasirin Gudanar da Zaure

Don tabbatar da cewa SCR na de-excitation a zahiri ya kunna kuma yana aiwatar da fitarwa na yanzu, IS200EDEXG1B yana haɗa nau'ikan na'urori biyu na na'urori masu auna halin yanzu dangane da Tasirin Hall. Ana ɗora zoben gudanarwa (zoben injina) a saman gefen allon, yana kewaye da firikwensin Hall. Lokacin da SCR ke gudanarwa da fitarwa na halin yanzu, filin maganadisu da na yanzu yana tattara ta zoben gudanarwa kuma ya mai da hankali kan firikwensin Hall, wanda ke fitar da siginar wutar lantarki daidai da na yanzu. Ana sarrafa na'urorin firikwensin guda biyu da kansu kuma suna iya gano yanayin halin yanzu na bipolar (don aikace-aikacen de-excitation na Rukunin 1 SCR, gano bipolar ne; An saita de-excitation na rukuni na 2 don ganowa unidirectional). Ana mayar da siginar halin halin yanzu da aka gano zuwa EAUX/EXTB ta tashoshin M1 da M2 bi da bi, daga inda mai sarrafawa zai iya tabbatar da da'irar fitarwa ta yi aiki cikin nasara. Alamun jajayen LED guda biyu akan allon sun dace da da'irorin ganowa biyu; suna haskakawa a duk lokacin da aka gano kwararar halin yanzu, suna ba da alamun gani na gani na rashin jin daɗi ga ma'aikatan kula da filin.

4. Configurable Anode Voltage da Jumper Saituna

IS200EDEXG1B yana ba da fa'idodin daidaitawar wutar lantarki na anode don ɗaukar ƙimar ƙarfin lantarki daban-daban da girman SCRs. Ta hanyar masu tsalle-tsalle na waya a kan masu haɗin wuka na hukumar (E1B ta hanyar E12, E7A ta hanyar E11, da sauransu), za a iya saita ƙarfin wutar lantarki na cibiyar sadarwa ta BOD da ƙimar ƙayyadaddun ƙimar resistor na yanzu. Takaddun suna ba da tsarin daidaitawa na yau da kullun don 53 mm da 77 mm SCRs:

Wannan tsarin daidaitawa mai sassaucin ra'ayi yana ba da damar hukumar IS200EDEXG1B iri ɗaya don daidaitawa da sigogin tashin hankali daban-daban don janareta daga ƙanana zuwa babba, rage nau'ikan kayan gyara da haɓaka tsarin kiyayewa da sassauci.

5. Jagora-Mabiyi Multi-Board Daidaita Kanfigareshan

Ga manyan janareta, ƙarfin halin yanzu na SCR guda ɗaya na iya zama rashin isa don ɗaukar ɗaukacin halin yanzu. IS200EDEXG1B yana goyan bayan babban allo mai jujjuya yanayin aiki, yana ba da damar SCRs masu ban sha'awa da yawa don raba fitar da halin yanzu. A cikin daidaitaccen tsari, an saita allon IS200EDEXG1B ɗaya azaman Jagora ta zaɓar matsayi 'M' akan jumpers JP1 da JP2; sauran allunan an saita su azaman Mabiya ta hanyar zaɓar matsayin 'S'. Ana isar da umarni da iko na hukumar gudanarwa zuwa allon Mabiya ta hanyar igiyoyin kintinkiri EPL1/EPL2. Allolin Masu bin suna karɓar bugun bugun jini da ƙarfi kawai daga Jagora, kuma bai kamata a haɗa haɗin kai zuwa masu haɗin J1 da J2 ba. Lokacin da babban allo ya karɓi umarni na harbe-harbe kuma yana haifar da bugun bugun ƙofar, lokaci guda yana haifar da duk daidaitattun SCRs, yana tabbatar da rarrabawar halin yanzu. Allolin masu bin suma suna da nasu iyawar ganowa, kuma ana aika siginar matsayin su zuwa ga Jagora ta hanyar igiyoyin EPL don tarawa da bayar da rahoto.

Saitunan Jagora da Mabiyi Jumper:

Ma'anar Ma'anar Maɓalli da Mai Haɗi

Kwamitin IS200EDEXG1B yana ba da masu haɗin kai da yawa don shigar da wutar lantarki, karɓar umarnin harbe-harbe, fitar da bugun kofa na SCR, da haɗin gwiwar Jagora-Follower. Ma'anar masu haɗawa sune kamar haka:

Mai Haɗin J8 (mai haɗin kulle-pin 6) - Haɗa zuwa allon EAUX/EXTB:

Mai Haɗin DEPL (mai haɗin kulle-pin-2) - Haɗa zuwa ƙofar SCR da cathode:

EPL1/EPL2 Connector (25-pin D-sub connector) - Ana amfani da shi don haɗin gwiwar Jagora-Mabiyi:

J17M1 da J17M2 Masu Haɗin Wutar Lantarki (Masu haɗin kulle-pin-4) - Ƙarfin wutar lantarki don M1 da M2 sarrafawa da'irori:

Kariyar Tsaro da Shigarwa/ Kulawa

Hukumar IS200EDEXG1B tana da alaƙa kai tsaye zuwa filin janareta babban ƙarfin lantarki, kuma dole ne a bi ka'idodin aminci mai ƙarfi yayin shigarwa da kiyayewa. Kafin maye gurbin hukumar, dole ne a kammala cikakkun hanyoyin hana kuzari da Kullewa/Tagout (LOTO) don tabbatar da ikon sarrafawa da ma'aikatun mataimaka sun lalace gaba ɗaya. Jirgin yana kula da fitarwa na electrostatic; Dole ne a sa madaurin wuyan hannu na anti-a tsaye yayin sarrafawa, kuma dole ne a adana allunan da aka keɓe a cikin jakunkuna marasa ƙarfi.

Matakan musanya maɓalli: Cire haɗin duk igiyoyi daga allon (riƙe haɗin haɗin haɗin waya da cire kawai E1A jumper), cire zoben gudanarwa da ke sama da firikwensin Hall Effect, buɗe PEM Snap Top fasteners, kuma cire tsohon allo. Saita masu tsalle-tsalle da JP1-JP6 na sabon allo daidai da tsohon allo, shigar da amintaccen allon, maye gurbin zoben gudanarwa, sake haɗa dukkan igiyoyi, sannan a rufe ƙofar majalisar.