Description
Product Overview
The GE DS200PTBAG1 (PTBA board, common suffix variants DS200PTBAG1ADC, DS200PTBAG1BAA, DS200PTBAG1BBA) is the P-Core protection termination PCB for GE Speedtronic Mark V turbine control system. It serves as the dedicated field wiring terminal interface for the Mark V protection core, handling high-speed pulse signals from magnetic speed pickups, flame detectors, hardwired trip switches and safety interlock devices. The board integrates screw terminal blocks, per-channel fusing and transient surge suppression to protect safety-critical signals before routing them to the P-Core protection logic board. It is designed for TMR triple redundant Mark V turbine safety architecture for gas turbines, steam turbines and combined-cycle power plants. This legacy board is end-of-production and widely stocked as critical safety maintenance spare for existing Mark V control cabinets.
Technical Specifications
| Parameter | Details |
|---|---|
| Part Number | DS200PTBAG1 (suffix variants: ADC, BAA, BBA) |
| Manufacturer | GE General Electric |
| Product Category | P-Core Protection Termination Board (PTBA) |
| Control Platform | Speedtronic Mark V Turbine Control System |
| Terminals | Dual large terminal blocks, multi-channel safety signal termination, individual channel fusing |
| Signal Types | Speed pickup pulse signals, flame detection, discrete trip and interlock safety signals |
| Protection | Onboard surge suppression, fast-blow per-channel fuses |
| Interfaces | Ribbon cable connectors to P-Core logic board, backplane interface |
| Power Supply | +5VDC / ±15VDC supplied from rack backplane |
| Mounting | Plug-in PCB inside Mark V P-Core rack assembly |
| Status Indicators | LED power and channel status indicators |
| Diagnostics | Continuity check for safety wiring, circuit fault detection |
| Operating Temperature | -20°C ~ +70°C |
| Storage Temperature | -40°C ~ +85°C |
| Relative Humidity | 5% ~95% non-condensing |
| Approximate Weight | 0.7 kg |
Compliance & Certifications
- CE mark compliant with EMC and Low Voltage Directive
- Designed to GE Speedtronic turbine safety specifications
- RoHS compliant
- Factory power-on, signal continuity and safety loop 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 P-Core rack and discharge internal power supply capacitors
- Label and disconnect all field safety wiring, ribbon cables and backplane connectors from old DS200PTBAG1
- Insert replacement board into rack slot, secure mounting fasteners
- Reconnect field safety wiring and ribbon cables strictly following original terminal mapping
- Restore rack power and verify LED power indicators
- Perform safety signal loop test, overspeed and flame signal validation and TMR P-Core voting checkout; commissioning must be completed by certified GE turbine control technicians
FAQ
Q: What system uses DS200PTBAG1? A: It belongs to GE Speedtronic Mark V gas and steam turbine control system, dedicated termination board for P-Core protection core safety signals.
Q: What is the core function of DS200PTBAG1? A: It terminates field safety signals (speed probes, flame sensors, trip interlocks), provides fuse and surge protection, and routes signals to Mark V P-Core protection logic.
Q: Is suffix revision matching required? A: Yes, suffix variants differ in PCB coating, fuse rating and terminal layout. Revision matching is mandatory for TMR redundant safety racks.
Q: What type of signals are wired to PTBA board? A: Safety critical pulse signals from magnetic speed pickups, flame detection inputs and hardwired emergency trip discrete signals.
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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