iimveliso

INGCACISO:

Inombolo yomthetho: IS200EGDMH1AFG
Umenzi: uMbane ngokubanzi
Uluhlu: EX2100
Uhlobo lweMveliso: Imodyuli ye-Exciter Ground Detector
Inani lamajelo: 12
Ixesha lokufaka: 4-20 mA
Itekhnoloji: Surface Mount
Uluhlu lweMode yoMbane yoMbane: ±5 V
Ubuninzi boKuchasa iNkokheli: 15Ω
Imveliso ye-analog yangoku: 0-20 mA
Ubushushu bokusebenza: -30 ukuya kuma-65 °C

INKCAZELO YOMSEBENZI:

IS200EGDMH1AFG yi-Exciter Ground Detector Module eyenziwe kwaye iyilwe nguMbane Jikelele njengenxalenye ye-EX2100 Series esetyenziswa kwii-GE Excitation Control Systems. I-IS200EGDMH1 Ground Detection Module isetyenziswe kwi-EX2100 Control Excitation. I-slot ephindwe kabini, ukuphakama okuphindwe kabini (i-6U) ibhodi yefom yefom ekhwela kwi-Exciter Power Backplane rack (EPBP). Umtshina womhlaba wentsimi ufumanisa ukuchasana kweminyaka yokuvuza phakathi kwayo nayiphi na indawo kwisekethe yecandelo lejenereyitha emhlabeni, nokuba kwicala le-ac okanye le-dc. Inkqubo ye-simplex iya kuba ne-EGDM enye, kwaye inkqubo engafunekiyo iya kuba nezintathu. Indawo ye-EGDM (s) iboniswe kwi-Figure 1. I-EXAM, imodyuli ye-attenuator, iva i-voltage kwi-resistor yoluvo lomhlaba kwaye ithumela umqondiso kwi-EGDM (s) phezu kwentambo ye-conductor elithoba. Imodyuli ye-EXAM ifakwe kwi-High Voltage Module ebekwe kwi-Auxiliary Panel.

Kulawulo olungafunekiyo, isethi yeebhodi ezintathu ze-EGDM zicwangciswe njengoMlawuli (C), i-Master 1 (M1), kunye ne-Master 2 (M2). Ukucwangciswa kwe-EGDM nganye ilawulwa liqela lezikhonkwane zeprogram kwi-P2 connector. Ulwazi apho inkosi inikezela ngomqondiso wokuqhuba kwi-resistor yoluvo kwiModyuli ye-Attenuator ithunyelwa kwi-DSPX, ngokusebenzisa i-EISB kwi-rack controller rack, ukuya kwi-EGDM C. Emva kokufumana olu lwazi kwikhonkco ye-fiber-optic, i-C mhlawumbi inika amandla i-relay kwi-Attenuator Module ukuba i-M2 ingumqhubi, okanye ishiya ingenamandla ukuba i-M1 iyinkosi ekhethiweyo. Ngexesha elifanayo, umqondiso wokuhlukana uthunyelwa kwi-M1 kunye ne-M2 ebonisa inkosi ekhethiweyo. Lo mqondiso wenza i-generator yesiginali kwi-master esebenzayo kwaye ikhetha umthombo womyalelo wovavanyo kwimodyuli nganye (M1, M2, kunye no-C). Ngoku inkosi esebenzayo ifumana i-Oscillator Signal phezu kwe-fiber optic link esuka kwi-DSPX ngokusebenzisa i-EISB ukuba iguqulela kwisignali efanelekileyo okanye embi ye-50-volt. Lo mandla ombane wesikwere uthunyelwa ngekhebula kwimodyuli ye-EXAM kwaye isetyenziswe kwelinye icala leSense Resistor.

I-conditioner yesignali ifumana i-attenuated (10: 1) isignali yokwahlukana kwi-Sense Resistor kwimodyuli ye-EXAM. I-conditioner yesignali yinto elula yokuzuza i-amplifier yobunye kunye ne-high common-mode rejection ratio elandelwa yi-A-to-D converter (i-Voltage Controlled Oscillator VCO). I-VCO yondla i-fiber optic transmitter. I-signal conditioner circuitry inikwe amandla ombane ozimeleyo ukugcina abasebenzi kunye nokhuseleko lwezixhobo ngenxa yombane ophezulu wemowudi eqhelekileyo kwi-Sense Resistor. I-conditioner yesignali inokulinganisa inqanaba lokuphuma kwe-amplifier yamandla ngokumisa icala lebhulorho ye-Sense Resistor ethotyiweyo kumyalelo ovela kwicandelo lolawulo.

IIMBONAKALO:

• Icandelo C lomlawuli lifumana zonke iinkqubo kunye nezibonakaliso zokulawula ezivela kwimithombo eyahlukeneyo ukumisela ukuba yeyiphi imodyuli eya kuba yinkosi. Ikwafumana isignali ye-oscillator kwi-DSPX ukwenzela ukuba ikwazi ukuvelisa umyalelo wokuvavanya kwinguqu nganye yesignali ye-oscillator.

• Umyalelo wokuvavanya ngumqondiso we-250 ms ubude obunokuthi uhlaziywe kuyo yonke inguqu yesignali ye-oscillator (nokuba ixesha lomqondiso lingaphantsi kwe-250 ms).

• Lo myalelo wovavanyo uthunyelwa kwicandelo lolawulo lwemodyuli nganye (M1, M2, kunye noC) ukuvelisa uphawu lovavanyo olude lwe-250 ms kwinguqu nganye elungileyo yomyalelo wovavanyo. Lo mqondiso awubuyiselwa kwaye ngoko ke utshintsho kufuneka luhlulwe ngaphezu kwe-250 ms ngaphambi kokuba omnye umqondiso wokuvavanya uveliswe.

• Icandelo lokunikezelwa kwamandla lifumana i-24 V dc kwi-EPSM efanelekileyo nge-EPBP (i-backplane). Ukusebenzisa i-dc ukuya kwi-converter ye-dc, iguqula le nto ibe yi-± 65 V dc (engekho yodwa) ye-amplifier yamandla kwicandelo le-generator ye-signal, kunye ne-+5 V dc (eyodwa) kunye ne-± 15 V dc (eyodwa) ukwenzela ukulungiswa komqondiso.

• Imveliso yeamplifier yamandla ngumthombo wombane kunye ne-impedance yemveliso engaphantsi kwe-1.0 Ohm. I-voltage ephumayo yi-± 50 Volt squarewave kunye ne-current limited malunga ne-80 mA, kunye nexesha eliqhelekileyo lokusebenza le-5 imizuzwana. Ngethuba lokusebenza kovavanyo, ixesha linciphisa ukuya kuma-400 ms.
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