Features:
- Monitors three independent turbine-speed channels in the Mark V protective core.
- Combines overspeed, flame-trip, and automatic-synchronizing support on the TCEA board.
- Exchanges operating and diagnostic data with the core controller through IONET.
An 80196 processor, removable PROMs, three fuses, and configurable hardware jumpers form the board's control and protection hardware.
The trip path handled by General Electric DS200TCEAG1B is separate from normal regulator logic, so a replacement must reproduce the installed protective-core address and firmware arrangement.
Because field speed pickups and flame circuits terminate through unit-specific wiring, commissioning must follow the plant drawings rather than a generic jumper map.
For pricing and availability of the General Electric DS200TCEAG1B Mark V emergency overspeed protection board contact Apter Power.
General Electric DS200TCEAG1B Mark V emergency overspeed protection 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.
Signals used by the protection path
- Speed channels: Three pulse-rate inputs monitor independent shaft-speed pickups.
- Flame status: Flame-detection inputs participate in protective trip decisions.
- Threshold data: Unit-specific constants determine the permitted overspeed limit.
- Voting context: Each protective core contributes to the Mark V trip architecture.
- Signal plausibility: Missing pulses, noise, or connector faults must be separated from true overspeed.
Board elements that must stay matched
- Processor: An Intel 80196 executes board-level protection and diagnostic functions.
- PROM set: Removable devices carry firmware associated with the installed configuration.
- Fuses: Three onboard fuses protect defined board circuits.
- Jumpers: Thirty hardware positions cover addressing and other site-dependent choices.
- Interconnects: Bayonet and ribbon-cable connectors couple the TCEA board to the core.
Checks before and after exchange
- Removal record: Photograph every connector and record the protective-core position before removal.
- PROM identity: Compare PROM labels and orientation with the removed board and the unit configuration record.
- Jumper transfer: Transfer only approved positions; do not copy an unrelated core configuration.
- Fuse check: Inspect fuse continuity with power isolated and use the specified replacement rating.
- Return to service: After startup, confirm IONET communication and validate all three speed indications.
Practical diagnostic sequence
- False speed indication: Inspect pickup continuity, shielding, grounding, and input connectors.
- IONET alarm: Recheck board address jumpers, core cabling, and seating.
- Persistent trip: Compare field flame states and configured thresholds with the trip log.
- No board response: Verify the three fuses and the required core supply rails.
- Post-replacement mismatch: Confirm PROM identity and the complete TCEA revision.