Description
Product Overview
The GE DS200TCEAG1 (TCEA board, common suffix variants DS200TCEAG1ADB, DS200TCEAG1ACB, DS200TCEAG1BTF) is the emergency overspeed and hardwired trip protection PCB for GE Speedtronic Mark V turbine control system. This safety board operates independently within the TMR triple redundant R/S/T core architecture. It receives pulse signals from magnetic speed pickups, continuously monitors turbine rotor speed, and executes 2-out-of-3 voting emergency trip logic when overspeed thresholds are exceeded. It also interfaces flame detection signals and drives hardwired trip relays to cut fuel supply and initiate turbine shutdown, providing a separate hardware safety layer independent from the main control CPU. This legacy board is end-of-production and stocked as critical safety spare for gas turbine, steam turbine and combined-cycle power plant Mark V control cabinets.
| Parameter | Details |
|---|---|
| Part Number | DS200TCEAG1 (suffix variants: ADB, ACB, BTF) |
| Manufacturer | GE General Electric |
| Product Category | Emergency Overspeed Trip Board (TCEA) |
| Control Platform | Speedtronic Mark V Turbine Control System |
| Processor | Onboard dedicated microprocessor, PROM/EPROM for safety firmware |
| Speed Inputs | 3-channel magnetic pickup pulse signals for redundant speed measurement |
| Core Logic | TMR 2oo3 voting safety trip logic |
| Interfaces | Backplane connector, ribbon headers, configurable jumpers, RS-232 debug port |
| Power Supply | +5VDC, ±15VDC supplied from rack backplane |
| Mounting | Plug-in card for Mark V RST core rack |
| Status Indicators | Onboard LEDs for power, run, overspeed, flame fault and trip status |
| Diagnostics | Continuous hardware self-test, speed signal validation, watchdog fault detection |
| Operating Temperature | -30°C ~ +65°C |
| Storage Temperature | -40°C ~ +85°C |
| Relative Humidity | 5% ~95% non-condensing |
| Approximate Weight | 0.65 kg |
Compliance & Certifications
- CE mark compliant with EMC and Low Voltage Directive
- Designed to GE Speedtronic turbine safety standards
- RoHS compliant
- Factory power-on, speed simulation, trip logic and TMR voting functional test before shipment
Storage & Installation Guidelines
Storage Requirements
- Store in dry temperature-controlled warehouse; recommended ambient 10°C ~30°C, RH <70% non-condensing
- Remain sealed inside original anti-static packaging before installation
- Protect from mechanical shock, continuous vibration, dust and corrosive vapors
- ESD wristband required when unpacking and handling PCB assemblies
Installation Instructions
- Execute lock-out/tag-out and fully de-energize Mark V turbine control rack before board replacement
- Wear ESD protective gear to prevent electrostatic damage to circuit components
- Open the Mark V core rack and discharge internal power supply capacitors
- Disconnect backplane connectors and ribbon cables from the old DS200TCEAG1 board
- Insert replacement board into rack slot, verify jumper and DIP switch settings match original site revision
- Reconnect speed pickup wiring and backplane interfaces
- Restore rack power, load safety firmware parameters
- Complete overspeed simulation test, trip function validation and TMR core voting checkout; commissioning must be completed by certified GE turbine control technicians
FAQ
Q: What system uses DS200TCEAG1? A: It belongs to GE Speedtronic Mark V gas and steam turbine control system, used for independent emergency overspeed protection and hardwired turbine trip logic.
Q: What is the key advantage of this overspeed board? A: It implements hardware-level TMR 2oo3 voting protection, independent of the main turbine control CPU, to prevent catastrophic turbine damage in overspeed events.
Q: Do I need to match the suffix revision? A: Yes, suffix variants have different firmware and component revisions. Revision matching is mandatory for TMR redundant core racks.
Q: What signals does DS200TCEAG1 receive? A: Pulse signals from magnetic speed sensors, plus flame detection inputs for integrated protection logic.
Q: What warranty is available? A: Standard 12-month warranty applies for fully tested boards operated under rated normal operating service conditions.
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