The GE DS200TCEAG1BTF, also cataloged as the DS200TCEA Emergency Overspeed Board, operates as a dedicated hardware component for emergency overspeed protection and pulse input trip execution within Speedtronic Mark V control systems.
Suffix Breakdown & Model Matrix
| Segment | Code | Description |
|---|---|---|
| Product Family | DS200 | Speedtronic Mark V Board Series |
| Board Acronym | TCEA | Emergency Overspeed Board |
| Group Identifier | G1 | Group 1 Standard Functional Circuitry Configuration |
| Functional Revision 1 | B | First Functional Revision Level |
| Functional Revision 2 | T | Second Functional Revision Level |
| Artwork Revision | F | Sixth Revision Level / Circuit Artwork Layout |
Hardware Specifications
| Parameter | Specification |
|---|---|
| Model | DS200TCEAG1BTF |
| Brand | GE General Electric |
| Origin | USA |
| Weight | 0.75 kg (1.65 lbs) |
| Dimensions | Standard Mark V Board Profile |
| Operating Temp | 0 to 60 deg C |
| Power Consumption | Passive Board (Logic power consumption < 8.0 W) |
| Core Function | Speed signal processing and emergency trip logic |
| Assembly Type | Normal Assembly |
| Group Identifier | Group 1 |
Backplane Bus & Firmware Architecture
The DS200TCEAG1BTF routes high-frequency pulse inputs from magnetic speed pickups directly to dedicated protective trip logic pathways. Parallel connection traces optimize backplane bus communication velocity and remove processing overhead during overspeed condition evaluation. Logic execution operates independently of main control cores to enforce deterministic trip actuation. Firmware flash compatibility is governed directly by the primary protective processor core linked to the board headers, allowing the board to operate across standard Mark V system revisions without firmware flashing required on the circuit card itself.
Frequently Asked Questions
Q: Can the DS200TCEAG1BTF be hot-swapped while the turbine speed control loop is active?
A: No. Removing or inserting the module during turbine operation interrupts the emergency overspeed detection loop, causing an immediate protective trip actuation.
Q: How does the DS200TCEAG1BTF process speed sensor inputs?
A: The board receives frequency pulses from magnetic pick-up sensors, evaluates the pulse frequency against defined thresholds, and drives trip relay outputs when overspeed limits are exceeded.
Q: Is the DS200TCEAG1BTF backward compatible with earlier DS200TCEAG1 revisions?
A: Yes. The DS200TCEAG1BTF retains physical footprint, terminal connections, and trace pinouts consistent with the parent DS200TCEAG1 board profile.
Field Installation Guidelines
- Disconnect all control power and field pulse generator inputs prior to installing or servicing the board assembly.
- Align ribbon cable connectors with connector keys to avoid pin misalignment across internal bus interfaces.
- Connect magnetic speed sensor shield wires to dedicated enclosure ground points to prevent electrical noise from triggering false overspeed events.
- Fasten mounting screws across all corner standoffs to establish proper chassis ground reference and mechanical retention.
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