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.