imikhiqizo

IMICIMBI:

Ingxenye #:IS200EGDMH1AFG
Umkhiqizi: General Electric
Uchungechunge: EX2100
Uhlobo Lomkhiqizo: I-Exciter Ground Detector Module
Inani lamashaneli: 12
Isikhathi sokufaka: 4-20 mA
Ubuchwepheshe: Surface Mount
Ibanga le-Voltage yemodi evamile: ±5 V
Ubukhulu bokumelana nokuhola: 15Ω
Okuphumayo kwe-analog yamanje: 0-20 mA
Izinga lokushisa lokusebenza: -30 kuya ku-65 °C

INCAZELO YOMSEBENZI:

I-IS200EGDMH1AFG iyi-Exciter Ground Detector Module eyakhiwe futhi yaklanywa i-General Electric njengengxenye yochungechunge lwe-EX2100 olusetshenziswa ku-GE Excitation Control Systems. I-IS200EGDMH1 Ground Detection Module isetshenziswa ku-EX2100 Excitation Control. I-double slot, i-double height (6U) ifomu factor board egibeleka ku-Exciter Power Backplane rack (EPBP). Umtshina womhlabathi wenkundla uthola ukumelana nobudala bokuvuza phakathi kwanoma iyiphi indawo kusekethe yenkundla yejeneretha ukuya phansi, kungaba ngasohlangothini lwe-ac noma lwe-dc. Uhlelo lwe-simplex luzoba ne-EGDM eyodwa, futhi uhlelo olungasasebenzi luzoba nezintathu. Indawo ye-EGDM(ama) iboniswa kuMfanekiso 1. I-EXAM, imojula ye-attenuator, izwa i-voltage ku-resistance sensor yaphansi bese ithumela isignali kuma-EGDM(ama) ngekhebula yekhondatha eyisishiyagalolunye. Imojuli ye-EXAM ifakwe ku-High Voltage Module etholakala ku-Axiliary Panel.

Ekulawuleni okungasasebenzi, isethi yamabhodi e-EGDM amathathu acushwa njenge-Controller (C), Master 1 (M1), kanye ne-Master 2 (M2). Ukucushwa kwe-EGDM ngayinye kulawulwa isethi yamaphini ohlelo kusixhumi se-P2. Ulwazi lapho okuyinhloko kunikeza khona isignali yedrayivu kusivikeli sezinzwa kumojuli ye-Attenuator ithunyelwa isuka ku-DSPX, nge-EISB ku-rack yesilawuli, kuya ku-EGDM C. Lapho ithola lolu lwazi ngesixhumanisi se-fiber-optic, u-C angase anike amandla ukudlulisela kuMojuli ye-Attenuator uma i-M2 ingumshayeli, noma iyishiye ingenamandla uma i-M1 iyinhloko ekhethiwe. Ngesikhathi esifanayo, isignali ehlukile ithunyelwa ku-M1 ne-M2 ebonisa inkosi ekhethiwe. Lesi siginali inika amandla ijeneretha yesiginali kumphathi osebenzayo futhi ikhetha umthombo womyalo wokuhlola kumojula ngayinye (M1, M2, kanye no-C). Manje inkosi esebenzayo ithola Isiginali ye-Oscillator phezu kwesixhumanisi se-fiber optic kusuka ku-DSPX nge-EISB esiyiguqulela kusignali ephozithivu noma engeyinhle engu-50-volt. Le voltage yesikwele yamagagasi ithunyelwa ngekhebula kumojula ye-EXAM futhi isetshenziswa ekugcineni kweSense Resistor.

I-conditioner yesiginali ithola isignali encishisiwe (10:1) ehlukile ku-Sense Resistor kumojula ye-EXAM. I-conditioner yesignali iyi-amplifier ehlukile yokuthola ubunye enezinga eliphezulu lokunqatshelwa kwemodi evamile elandelwa isiguquli se-A-to-D (Voltage Controlled Oscillator VCO). I-VCO iphakela i-fiber optic transmitter. Isifunda se-conditioner yesiginali sinikwa amandla ugesi ongasodwa ukuze kugcinwe abasebenzi kanye nokuphepha kwemishini ngenxa yevolthi ephezulu yemodi evamile ku-Sense Resistor. I-conditioner yesignali ingakala izinga lokukhipha isikhulisi samandla ngokumisa uhlangothi lwebhuloho lwe-Sense Resistor encishisiwe ngomyalo ovela esigabeni sokulawula.

IZICI:

• Isigaba C sesilawuli sithola lonke uhlelo nokulawula amasiginali avela emithonjeni ehlukahlukene ukuze kutholwe ukuthi iyiphi imojula ezoba inkosi. Iphinde ithole isignali ye-oscillator evela ku-DSPX ukuze ikwazi ukukhiqiza umyalo wokuhlola ekushintsheni ngakunye kwesiginali ye-oscillator.

• Umyalo wokuhlola uyisignali ende engu-250 ms engaqalwa kabusha kukho konke ukuguqulwa kwesiginali ye-oscillator (ngisho noma isikhathi sesiginali singaphansi kuka-250 ms).

• Lo myalo wokuhlola ube usuthunyelwa esigabeni sokulawula semojula ngayinye (M1, M2, no-C) ukuze kukhiqizwe isignali yokuhlola ende engu-250 ms ekushintsheni ngakunye okuhle komyalo wokuhlola. Lesi siginali ayibuyiseleki futhi ngakho-ke ukuguqulwa kufanele kuhlukaniswe ngaphezu kuka-250 ms ngaphambi kokuthi kukhiqizwe enye isignali yokuhlola.

• Ingxenye yokuphakelwa kwamandla ithola i-24 V dc esuka ku-EPSM efanele nge-EPBP (indiza engemuva). Isebenzisa i-dc kuya ku-dc converter, iguqulela lokhu ku-±65 V dc (okungahlukanisiwe) ku-amplifier yamandla esigabeni se-generator yesignali, kanye ne-+5 V dc (eyodwa) kanye ne-±15 V dc (eyodwa) ukuze kulungiswe isignali.

• Ukukhishwa kwesikhulisi samandla kuwumthombo we-voltage one-impedance ephumayo engaphansi kuka-1.0 Ohm. I-voltage ephumayo ingu-±50 Volt squarewave enamandla amanje anomkhawulo cishe ku-80 mA, futhi inesikhathi esivamile sokusebenza samasekhondi angu-5. Ngesikhathi sokusebenza kokuhlola, isikhathi sinciphisa sibe ngu-400 ms.
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