DS200TCEAG1B GE Mark V Speedtronic Overspeed Protection
Manufacturer: GE Fanuc
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Part Number: DS200TCEAG1B
Condition：New with Original Package
Product Type: Emergency Overspeed Board
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Country of Origin: USA
Payment:T/T, Western Union
Shipping port: Xiamen
Warranty: 12 months
Product Overview
The DS200TCEAG1B (functional acronym TCEA) is an authoritative Emergency Overspeed and Trip Circuit Exciter Board developed by GE Fanuc for the Mark V Speedtronic turbine control system. This module serves as a critical mechanical necessity for turbine safety, responsible for monitoring shaft speed and managing protective trip signals. In the event of an overspeed condition or a system fault, the DS200TCEAG1B executes a high-speed protective shutdown to prevent catastrophic equipment failure. Designed for high-availability environments, it supports Triple Modular Redundancy (TMR) configurations, ensuring that critical safety functions remain operational even if a single component fails.
Detailed Technical Specifications
| Attribute | Details |
| Manufacturer | GE Fanuc / General Electric |
| Model Number | DS200TCEAG1B |
| Series | Mark V Speedtronic |
| Functional Acronym | TCEA |
| Product Type | Emergency Overspeed / Trip Circuit Board |
| Revision Level | G1B (Functional Revision) |
| Logic Voltage | 24 VDC (Typical) |
| Signal Inputs | Speed sensor pulses, trip commands, exciter feedback |
| Signal Outputs | Relay drivers, protective trip contacts |
| Operating Temp | -40 °C to +70 °C (-40 °F to 158 °F) |
| Dimensions | Standard 6U form factor (330 × 178 mm) |
| Redundancy | TMR (Triple Modular Redundancy) Compatible |
| Hardware Group | Group 1 Assembly |
Engineering and Operational Guidelines
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Emergency Overspeed Protection: The DS200TCEAG1B is the primary hardware interface for detecting overspeed conditions. This expertise ensures that if the turbine shaft exceeds its rated RPM, the board independently triggers the trip solenoids to cut fuel or steam supply.
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Exciter Control Integration: Beyond protection, the board manages exciter control loops. This allows the Mark V system to maintain precise generator field strength during normal operation while retaining the capability to de-excite the unit instantly during a trip event.
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Onboard Diagnostics: A trustworthy feature of the DS200TCEAG1B is its array of diagnostic LEDs. These provide maintenance engineers with real-time status of trip relay health, input signal presence, and internal board power levels, significantly reducing troubleshooting time.
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Redundant Reliability: When installed in a TMR rack, the DS200TCEAG1B operates alongside two other TCEA boards. This configuration utilizes 2-out-of-3 voting logic to verify trip signals, preventing nuisance trips caused by sensor noise while guaranteeing safety during genuine emergencies.
Technical FAQ
Q: How does the DS200TCEAG1B handle "Group 1" grouping requirements?
A: Group designations in the Mark V series correlate with specific I/O hardware configurations. As a Group 1 assembly, the DS200TCEAG1B is the standard configuration for primary overspeed monitoring in many gas and steam turbine control racks.
Q: Can the board be tested while the turbine is online?
A: Yes, the Mark V system allows for individual TMR core testing. Because the DS200TCEAG1B is integrated into the protective voting logic, one board can be tested or diagnosed while the other two maintain full protective coverage for the turbine.
Q: What is the significance of the G1B revision?
A: The G1B suffix indicates a specific hardware revision. It is an engineering best practice to match the revision level exactly when replacing a board to ensure that jumper settings and software PROM compatibility are maintained across all TMR cores.