The GE DS200TCEAG1A, also cataloged as the DS200TCEA Emergency Overspeed Board, operates as a dedicated hardware component for high-speed protective processing, signal conditioning, and trip signal generation within GE Mark V turbine control platforms.
Hardware Specifications
| Parameter | Specification |
|---|---|
| Model | DS200TCEAG1A |
| Brand | General Electric |
| Origin | Salem, VA, USA |
| Series | Mark V (Speedtronic Core ) |
| Functional Acronym | TCEA |
| Revision Group | Group 1, Revision A (G1A) |
| Core Signal Functions | Automatic synchronization, flame detection, low shaft speed, high shaft speed |
| Hardware Jumpers | J1/J31 (Testing), J4-J6 (IONET Address), J2-J3 (IONET Termination), J12-J21 (HP Overspeed), J8-J11/J22-J27 (LP Overspeed) |
| Interface Connectors | J7 (Power), JK (TCEB Signals), JL (TCTG Trip Signals), JW (Flame Signals), JX1/JX2 (IONET Daisy-Chain) |
| Onboard Features | Internal power supply with dedicated power diagnostic monitoring |
| Manual Reference | GEH-6153 |
| Operating Temp | 0 to 60 deg C |
| Dimensions | Standard GE Mark V Board Size |
| Weight | Standard GE Mark V Board Weight |
| Power Consumption | Integrated onboard power supply module |
Deterministic Networks & Signal Execution
The DS200TCEAG1A module interfaces directly with IONET deterministic networks using daisy-chained JX1 and JX2 connectors. Scaled signal data including shaft speed, flame telemetry, and synchronization feedback are transmitted to the STCA card over IONET. Upon threshold breach, emergency trip commands are delivered via the JL connector to the TCTG Turbine Trip Board, where hardware voting logic executes direct physical trip relay actuation to protect the turbine rotor.
Frequently Asked Questions
Q: How are IONET node addressing and bus terminations configured on the DS200TCEAG1A?
A: IONET addresses are set using hardware jumpers J4 through J6, while IONET bus termination resistors are enabled or disabled using jumpers J2 and J3.
Q: Which connectors interface the DS200TCEAG1A with the turbine trip and flame detection subsystems?
A: The JL connector routes emergency trip signals directly to the TCTG board, while the JW connector handles input signals from the TCEB flame detection board.
Q: How are high-pressure and low-pressure shaft overspeed trip limits calibrated on the hardware?
A: Overspeed frequency trip thresholds are physically configured using hardware jumper arrays J12-J21 for the high-pressure (HP) shaft and J8-J11 combined with J22-J27 for the low-pressure (LP) shaft.
Field Installation Guidelines
- Power down the Mark V cabinet and isolate all external trip contact power sources prior to board removal or insertion.
- Maintain proper ESD grounding procedures by wearing an anti-static wrist strap connected to the enclosure frame during handling.
- Verify that jumper configurations for IONET addressing (J4-J6) and overspeed trip frequencies match site engineering documentation before applying backplane power.
- Ensure all multi-pin ribbon cables (JK, JL, JW) and IONET connectors (JX1, JX2) are firmly latched to maintain signal integrity and prevent noise coupling.
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