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IS200EXTBG1A

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Built around three controller connections, General Electric IS200EXTBG1A is the EX2100 Group 1 terminal board for redundant field-contactor and flashing circuits.
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Technical specifications for IS200EXTBG1A

  • Manufacturer:
    General Electric
  • Part Number:
    IS200EXTBG1A
  • Product Family:
    GE Excitation Control
  • Product Type:
    Redundant Exciter Terminal Board
  • Stock:
    1
  • EXTB Group:
    Group 1
  • Control Structure:
    Redundant
  • Controller Connectors:
    J505 (M1), J508 (M2), J515 (C)
  • Wetting Supply Inputs:
    J12M1 and J12M2
  • Monitored Contacts:
    41, 53A and 53B
  • Status Route:
    EDEX to EMIO through EBKP
  • Tariff Code:
    8537101190
  • Country of origin:
    USA
  • Place of shipment:
    Xiamen,Fujian,China
By purchasing this item, you agree to the Terms & Conditions, ApterPower is not an authorized distributor for listed manufacturers or tradenames and therefore the manufacturer's warranty does not apply. All our products come with ApterPower's 1-year warranty.

More Information

Overview Manuals Channel Interfaces Field Commands Feedback Inputs Protection Status

Features:

  • IS200EXTBG1A is the Group 1 EXTB board for redundant EX2100 control.
  • M1, M2, and C use separate controller connections on the terminal board.
  • Contactor commands and protection feedback follow distinct signal routes.
J505, J508, and J515 prevent the three command channels from sharing a common controller connector on IS200EXTBG1A.

The two 70 V dc feeds let IS200EXTBG1A preserve separation between its redundant contact-return circuits.

Protection indications use EBKP as the final link from IS200EXTBG1A to EMIO.

Documentation, quotations, and EX2100 matching support for the General Electric IS200EXTBG1A Exciter Terminal Board are available from Apter Power.
General Electric IS200EXTBG1A Redundant Exciter Terminal Board Manuals, Datasheets, Links Important Notice: Other accessories, manuals, cables, calibration data, software, etc. are not included with this equipment unless listed in the above stock item description. All prices are shown in USD.

Redundant Connections

  • M1 channel: J505 carries the first controller interface.
  • M2 channel: J508 provides the second controller connection.
  • C channel: J515 links the coordinating controller path.
  • Supply separation: J12M1 and J12M2 feed the two wetting circuits.

Contactor Outputs

  • Main close: Relay 41 operates the field-contactor closing circuit.
  • Flash branch A: The 53A pilot output controls one flashing path.
  • Flash branch B: The 53B pilot output controls the second flashing path.
  • Group boundary: The Group 1 contactor arrangement omits relay 41T.

Contact Monitoring

  • Close state: One auxiliary input returns the condition of contact 41.
  • Flash A state: A dedicated input monitors contact 53A.
  • Flash B state: A separate channel reports contact 53B.
  • Input level: All three feedback paths use 70 V dc wetting.

EDEX Return Path

  • Crowbar state: EDEX crowbar feedback enters the EXTB conditioning section.
  • De-excitation state: EDEX operating status is conditioned on the same board.
  • Backplane link: The EBKP connection carries conditioned logic away from EXTB.
  • Controller input: EMIO receives the resulting protection status signals.
Description
General Electric IS200EXTBG1A is the Group 1 Exciter Terminal Board for redundant EX2100 control in contactor mode. The board forms the terminal interface between the redundant controller channels and the field-contactor, field-flashing, and de-excitation circuits.

Three controller routes define the redundant arrangement of IS200EXTBG1A: J505 serves M1, J508 serves M2, and J515 serves the C channel. Separate J12M1 and J12M2 feeds bring the 70 V dc wetting supplies used by the contact-status inputs.

For contactor operation, IS200EXTBG1A carries the 41 close command and the 53A and 53B field-flashing pilot outputs. The three associated auxiliary contacts return their states through the wetted input circuits; the Group 1 contactor configuration does not include the 41T trip relay.

Crowbar and de-excitation indications from EDEX enter IS200EXTBG1A for conditioning before reaching EMIO through the EBKP connection. This signal path keeps protection feedback separate from the M1, M2, and C command interfaces while returning the resulting logic states to the controllers.
Alternative Names
IS200-EXTB-G1A GE IS200EXTBG1A IS200 EXTB G1A General Electric IS200EXTBG1A GE EX2100 EXTBG1A EXTB G1 Exciter Terminal Board IS200EXTB G1A IS200EXTBGIA
Technical notes
J505, J508, and J515 keep the M1, M2, and C channels physically distinct on IS200EXTBG1A.
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FAQS

The following is a list of questions commonly asked by our customers. Please contact us if you have a question about our process that is not answered below.
One controller leg has stopped receiving contact status; how can IS200EXTBG1A help separate the redundant paths?
IS200EXTBG1A assigns J505 to M1, J508 to M2, and J515 to C, allowing the affected controller route to be identified without treating all three channels as one circuit.
What should be compared if the two IS200EXTBG1A contact-wetting paths do not behave alike?
Check the separate J12M1 and J12M2 70 V dc feeds on IS200EXTBG1A because they supply the redundant wetting circuits used by the contact feedback inputs.
Is a missing 41T output on IS200EXTBG1A evidence of a failed relay?
No. IS200EXTBG1A is the Group 1 contactor-mode board, and that configuration uses the 41 close relay without a 41T trip relay.
Where does an IS200EXTBG1A crowbar indication travel before the controller receives it?
The crowbar state enters IS200EXTBG1A from EDEX, is conditioned on the terminal board, and then reaches EMIO through the EBKP interface.
If only one field-flashing contactor responds, which IS200EXTBG1A functions distinguish the two branches?
IS200EXTBG1A uses separate 53A and 53B pilot outputs and corresponding auxiliary feedback inputs, so the two flashing branches can be followed independently.
Why must IS200EXTBG1A be matched to a redundant contactor arrangement rather than a breaker group?
IS200EXTBG1A combines redundant M1, M2, and C controller paths with contactor-mode relay logic; breaker-mode EXTB groups use a different trip arrangement.