GE DS200TCEAG1BRE Mark V Emergency Overspeed Board

Configured for overspeed monitoring and flame detection trip operations in Speedtronic Mark V Gas Turbine Control Systems, the GE DS200TCEAG1BRE (DS200TCEA Emergency Overspeed Board) provides direct physical/electrical execution.

Suffix Breakdown & Model Matrix

The precise modular assembly and revision path for the DS200TCEAG1BRE are detailed below:

Hardware Specifications

Power Supply & Interface Bus Technology

The TCEA architecture integrates dedicated processing resources with local signal pathways to ensure hardware-level turbine safety execution.

• Firmware Flash Compatibility & Processing: The onboard microprocessor executes safety monitoring routines independent of the main controller core. The system firmware is housed in socketed, field-replaceable PROM modules to prevent unauthorized logical overwrites or remote firmware corruption.
• Trip Signal Processing: Evaluates magnetic speed pickup signals and compares pulse frequencies to hardcoded overspeed thresholds. If limits are violated, hardware relays on the trip bus are de-energized to shut down the turbine.
• Flame Safety Interfacing: Monitors optical flame detectors in real-time, instantly transmitting flame status inputs to the core processing unit and triggering isolated trip sequences in the event of flame loss.

Frequently Asked Questions

• Q: What function do the physical bayonet connectors on the DS200TCEAG1BRE serve?
• A: The bayonet connectors provide low-resistance, vibration-resistant connections for critical high-speed sensor cables, directly linking the speed pickups and flame detection lines to the processing circuit.
• Q: How do the 30 onboard jumpers alter the operation of the board?
• A: The jumpers allow hardware-level configuration of speed sensor frequency scaling, trip limits, flame detector signal thresholds, and test-loop routing parameters before the board is put into active operations.
• Q: What is the procedure for swapping the socketed PROM modules during a board replacement?
• A: Prior to board installation, use an extraction tool to carefully remove the PROMs from the faulty board and transfer them into the exact matching sockets on the replacement board to preserve local configuration parameters.

Field Installation Guidelines

• Bayonet Cable Disconnection Safety: When disconnecting the male bayonet plugs from the board's female terminals, hold the connector body firmly with one hand while steadying the PCB surface with the other. This prevents excessive bending stresses, trace cracking, or mechanical board sliding.
• Electrostatic Protection: Always wear a grounded ESD wrist strap and work on a dissipative surface when handling this card to protect the microprocessor and CMOS components from static damage.
• De-energization Requirement: Completely power down the Mark V cabinet prior to installing or removing the card. Failure to isolate power lines can result in spurious trip commands or catastrophic card damage.