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WHAKAMAHI:

Te waahanga waahanga: IS200EGDMH1AFG
Kaihanga: General Electric
Raupapa: EX2100
Momo Hua: Kōwae Kaitirotiro Whenua Exciter
Te maha o nga hongere: 12
Momo whakauru: 4-20 mA
Hangarau: Maunga Mata
Awhe Ngaohiko Aratau Ngaohiko: ±5 V
Te Atete Arataki Morahi: 15Ω
Putanga tairitenga o naianei: 0-20 mA
Te pāmahana whakahaere: -30 ki te 65 °C

WHAKAMAHI MAHI:

Ko te IS200EGDMH1AFG he Kōwae Whakatairanga Papa Whakatairanga i hangaia, i hangaia e General Electric hei waahanga o te Raupapa EX2100 i whakamahia i roto i nga punaha Whakahaere Whakanuia GE. Kei te whakamahia te IS200EGDMH1 Ground Detection Module i roto i te EX2100 Exitation Control. He mokamoka rua, he papa ahua taurua teitei (6U) e mau ana ki roto i te whatanga Exciter Power Backplane (EPBP). Ka kitea e te kaitirotiro whenua mara te parenga o te rerenga-a-tau i waenga i nga waahi o te ara iahiko hiko ki te whenua, i te taha ac, dc ranei. Ko te punaha simplex ka kotahi te EGDM, ko te punaha taapiri ka toru. Ko te waahi o nga (ng) EGDM e whakaatuhia ana i te Whakaahua 1. WHAKAMAHI, te kōwae attenuator, ka rongo i te ngaohiko puta noa i te parenga o te whenua, ka tukuna te tohu ki te (ng) EGDM i runga i te taura hiko e iwa. Ko te kōwae EXAM kei roto i te Whakaaetanga Ngaohiko Teitei kei roto i te Paewhiri Tautoko.

I roto i te mana whakahaere, ka whirihorahia te huinga o nga papa EGDM e toru hei Kaiwhakahaere (C), Kaiwhakaako 1 (M1), me te Kaiwhakaako 2 (M2). Ko te whirihoranga mo ia EGDM e whakahaerehia ana e te huinga titi o te papatono i runga i te hononga P2. Ko nga korero e tukuna ana e te rangatira te tohu puku ki te parenga tikanga i roto i te Attenuator Module ka tukuna mai i te DSPX, na roto i te EISB i roto i te whatanga mana whakahaere, ki te EGDM C. I te whiwhinga o enei korero i runga i te hononga muka-whatu, ka whakakahahia e C te reera i roto i te Attenuator Module mena ko M2 te taraiwa, ka waiho ranei kia kore te mana mena ko M1 te rangatira i tohua. I te wa ano, ka tukuna he tohu rereke ki M1 me M2 e tohu ana i te rangatira kua tohua. Ma tenei tohu ka taea te whakaputa tohu i runga i te rangatira kaha me te kowhiri i te puna whakahau whakamatautau i ia waahanga (M1, M2, me C). Inaianei ka whakawhiwhia e te rangatira kaha he Tohu Oscillator i runga i te hononga muka whatu mai i te DSPX ma te EISB ka huri ki te tohu 50-volt pai, kino ranei. Ko tenei ngaohiko ngaru tapawha ka tukuna ma te taura ki te waahanga EXAM ka tukuna ki tetahi pito o te Sense Resistor.

Ka whiwhi te kaitakawahi tohu he tohu rerekee (10:1) mai i te Sense Resistor i roto i te waahanga EXAM. Ko te kaitakawaenga tohu he whakakorikori rereke noa te whakakotahitanga me te tauwehenga paopao aratau-nui ka whai i te kaitahuri A-ki-D (Voltage Controlled Oscillator VCO). Ka whangaihia e te VCO he kaiwhakawhiti muka. Ko te ara iahiko hiko o te tohu e whakakahangia ana e te hiko motuhake hei pupuri i te haumaru o nga kaimahi me nga taputapu na te nui o te ngaohiko aratau noa i te Sense Resistor. Ka taea e te kaitapahi tohu te ine i te taumata whakaputanga whakakaha hiko ma te whakatuu whenua i te taha piriti o te Sense Resistor kua ngoikore i runga i te whakahau mai i te waahanga mana.

NGĀ WHAKAMAHI:

• Ka whiwhi te wahanga C o te kaiwhakahaere i nga tohu hotaka me nga tohu whakahaere mai i nga momo puna hei whakatau ko wai te waahanga hei rangatira. Ka whakawhiwhia ano e ia te tohu oscillator mai i te DSPX kia taea ai e ia te whakaputa he whakahau whakamatautau i ia whakawhitinga o te tohu oscillator.

• Ko te whakahau whakamatautau he tohu 250 ms te roa ka taea te whakahoki ano i nga whakawhitinga katoa o te tohu oscillator (ahakoa he iti iho te wa o te tohu i te 250 ms).

• Ka tukuna tenei whakahau whakamatautau ki te waahanga whakahaere o ia waahanga (M1, M2, me C) hei whakaputa i te tohu whakamatautau 250 ms te roa i ia whakawhitinga pai o te whakahau whakamatautau. Ko tenei tohu kaore e taea te whakahoki ano, na reira me wehe nga whakawhitinga ma te neke atu i te 250 ms i mua i te hanga i tetahi atu tohu whakamatautau.

• Ka whiwhi te wahanga hiko hiko 24 V dc mai i te EPSM e tika ana ma te EPBP (backplane). Ma te whakamahi i te kaitahuri dc ki te dc, ka huri i tenei ki te ± 65 V dc (kaore i wehea) mo te kaha o te kaha i roto i te waahanga whakaputa tohu, me te +5 V dc (motuhake) me te ± 15 V dc (motuhake) mo te tohu tohu.

• Ko te whakaputanga whakakaha hiko he puna ngaohiko he iti iho i te 1.0 Ohm te kaha whakaputa. Ko te ngaohiko whakaputa he ngaru tapawha ±50 Volt me ​​te iti o te naianei ki te 80 mA, me te waa mahi noa o te 5 hēkona. I te wa o te mahi whakamatautau, ka heke te waa ki te 400 ms.
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