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IS200EXTBG2A

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In an EX2100 simplex cabinet, General Electric IS200EXTBG2A terminates the single-channel main-field contactor, paired flashing outputs, and return logic.
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Technical specifications for IS200EXTBG2A

  • Manufacturer:
    General Electric
  • Part Number:
    IS200EXTBG2A
  • Product Family:
    GE Excitation Control
  • Product Type:
    Simplex Exciter Terminal Board
  • Stock:
    1
  • EXTB Group:
    Group 2
  • Controller Arrangement:
    Simplex
  • Main Field Device:
    Contactor
  • Command Outputs:
    41, 53A and 53B
  • Feedback Input Level:
    70 V dc
  • Protection Interface:
    EDEX status to EMIO
  • 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 Simplex Layout Opening Sequence Flashing Circuits Logic Returns

Features:

  • IS200EXTBG2A is the simplex Group 2 EXTB board.
  • Relay 41 controls the main field contactor in this configuration.
  • Opening feedback participates in the EDEX de-excitation sequence.
IS200EXTBG2A keeps one controller path in command of relay 41 rather than dividing that function among redundant channels.

Its 53A and 53B circuits give IS200EXTBG2A independent command and return paths for both flashing contactors.

After EDEX states are conditioned, IS200EXTBG2A forwards their logic through EBKP to EMIO.

For the General Electric IS200EXTBG2A Exciter Terminal Board, Apter Power provides product manuals, quotations, and EX2100 matching assistance.
General Electric IS200EXTBG2A Simplex 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.

Group 2 Structure

  • Controller count: One controller path operates the terminal-board functions.
  • Field device: The main field circuit is switched by a contactor.
  • Close control: Relay 41 supplies the contactor-close command.
  • Trip boundary: Group 2 has no relay 41T circuit.

De-excitation Trigger

  • Normal state: Relay 41 maintains the commanded contactor condition.
  • Opening event: The main field contactor changes its auxiliary-contact state.
  • Command transfer: The auxiliary contacts take part in the EDEX command path.
  • Result: EDEX begins the de-excitation process after the contactor opens.

Paired Branches

  • First output: Relay 53A operates one field-flashing contactor.
  • Second output: Relay 53B operates the other flashing contactor.
  • Returned states: Separate inputs monitor the two auxiliary contacts.
  • Input source: The feedback circuits are wetted at 70 V dc.

Controller Feedback

  • Contact status: The 41, 53A, and 53B auxiliary inputs are conditioned on EXTB.
  • Protection status: Crowbar and de-excitation indications arrive from EDEX.
  • Board link: EBKP provides the interface between EXTB and EMIO.
  • Destination: EMIO receives the conditioned logic states for the controller.
Description
In a simplex EX2100 cabinet, General Electric IS200EXTBG2A serves as the Group 2 Exciter Terminal Board. One controller channel terminates at the main field-contactor and field-flashing interfaces, so the board does not use the three-channel layout assigned to the redundant group.

Closing begins when IS200EXTBG2A energizes relay 41. An opening event changes the main contactor auxiliary contacts and passes the de-excitation command toward EDEX; no 41T trip relay is included in this contactor configuration.

The two flashing branches remain independent on IS200EXTBG2A: 53A drives one contactor and 53B drives the other. Their auxiliary states, together with the 41 state, return through three 70 V dc wetted inputs that identify each contact separately.

For protection returns, IS200EXTBG2A conditions the crowbar and de-excitation indications received from EDEX. EBKP then carries those logic states to EMIO for the controller input path.
Alternative Names
GE EX2100 EXTBG2A IS200 EXTB G2A IS200-EXTB-G2A General Electric IS200EXTBG2A EXTB G2 Simplex Terminal Board GE IS200EXTBG2A IS200EXTB G2A IS200EXTBGZA
Technical notes
IS200EXTBG2A is the Group 2 simplex EXTB interface for main-field contactor control, paired flashing outputs, and EDEX status conditioning.
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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.
The cabinet has only one EX2100 controller path; is that the arrangement intended for IS200EXTBG2A?
Yes. IS200EXTBG2A is the Group 2 EXTB board for simplex contactor control, so it does not provide the M1, M2, and C channel set used by the redundant group.
When the main field contactor does not close after an IS200EXTBG2A change, which command is central to that operation?
Relay 41 is the main contactor-close output on IS200EXTBG2A, while 53A and 53B serve the two field-flashing contactors.
Why might de-excitation fail to start even though IS200EXTBG2A has opened the field contactor?
The auxiliary contacts of the main field contactor participate in the IS200EXTBG2A-to-EDEX de-excitation command path, so that contact feedback is part of the required sequence.
Only one flashing branch operates from IS200EXTBG2A; how are the two paths distinguished?
IS200EXTBG2A assigns one pilot output to 53A and another to 53B, with separate auxiliary inputs returning the state of each flashing contactor.
A crowbar state is present at EDEX but absent at the controller; what IS200EXTBG2A route connects them?
IS200EXTBG2A conditions the EDEX crowbar indication and sends the resulting logic through EBKP to the EMIO board.
Can IS200EXTBG2A provide a breaker trip through relay 41T?
No. IS200EXTBG2A belongs to the simplex contactor group and does not include the 41T trip function used by breaker-mode EXTB configurations.