Description
1. Product Overview
The GE DS200TCRAG1ACC is a ruggedized Relay Output Board (TCRA) engineered for GE’s legacy Mark V Speedtronic gas and steam turbine control platforms. This board interfaces low-level digital logic circuits from the core processors with heavy-duty field actuators. It acts as the physical execution layer for automated sequencing, emergency trips, and interlocking controls.
The alphanumeric part string DS200TCRAG1ACC breaks down into critical product data: DS200 marks the standardized base circuit layout; TCRA designates the specific functional blueprint as a Relay Output interface; G1 indicates Group 1 configuration; while the ACC suffix tracks factory-implemented hardware revisions, indicating upgraded contact materials and localized signal suppressors to mitigate inductive kickback from collapsing fields in external coils.
Key Applications:
- Turbine Trip Circuits: Implementing fail-safe shutdown signals across emergency fuel isolation valves.
- Auxiliary Equipment Sequencing: Interfacing control logic to drive lube oil pumps, cooling fans, and turning gears.
- Industrial Plant Alarms: Engaging master audible horns and visual annunciator panels across control rooms.
2. Technical Features
| Feature | Technical Specification |
|---|---|
| Relay Configuration | Multi-channel heavy-duty electromechanical relays |
| Contact Ratings | Supports typical 125 V DC / 240 V AC switching thresholds (Model dependent) |
| Signal Input | High-density ribbon cable connections linking back to the core microprocessor |
| Contact Protection | Integrated snubber circuits (RC networks) to prevent arcing and extend relay lifespan |
| Diagnostic Feedback | Individual coil status LEDs for quick visual verification of active channels |
| Mounting Architecture | Fits standard Mark V control card racks with nylon stand-offs |
3. Procurement Process
- Revision Control Verification: We carefully confirm the ACC suffix string to ensure matching timing constraints and terminal pin layouts for your active panel configuration.
- Formal Quotation: You receive a detailed line-item quote specifying pricing, immediate warehouse availability, and targeted global shipping schedules.
- Order Confirmation: Finalizing shipping manifests, compliance checks, and end-user tracking records.
- Sales Agreement: Issuance of a Proforma Invoice (PI) for corporate verification.
- Secure Payment: Remittance via standard T/T (Bank Wire Transfer) ensures immediate execution.
- Pre-Shipment Quality Control: 100% physical evaluation checking for relay armature seating, undamaged traces, and pin terminal perfection.
- ESD Shielded Packaging: Fully enclosed within heavy-duty, anti-static foil bags and placed in thick, form-fitting impact foam to withstand international air cargo handling.
- Global Distribution: Quick, trackable dispatch handled via DHL, FedEx, or UPS straight to your plant.
4. Products Showcase (Photos & Video)


5. Related Models
- GE DS200TCPDG1BEC (Digital Power Distribution Board)
- GE DS200TCDAG1B (Digital I/O Board Module)
- GE DS200TCPSG1A (Power Supply Unit)
- GE DS200DTBCG1A (Digital Terminal Board)
6. Warranty & After-Sales
- 12-Month Industrial Warranty: Comprehensive 1-year functional warranty protecting your facility against unexpected hardware failure.
- 100% Authentic Product Guarantee: We deal strictly in original General Electric control hardware for guaranteed longevity and correct response timing.
- Logistics Documentation Support: Seamless processing of customs data sheets, packing lists, and real-time transit tracking IDs.
7. FAQ
Q: What do the visual LEDs next to each relay indicate?
The onboard LEDs serve as a direct diagnostic aid for instrument technicians. When the primary processor triggers a specific channel, the corresponding LED lights up to show that power has been applied to that specific relay coil. If the LED is lit but the external field device does not activate, technicians can quickly pinpoint the problem as either a worn relay contact or a fault in the field wiring.
Q: Can the DS200TCRAG1ACC board be hot-swapped while the turbine is running?
No. Because this board controls critical output devices—which may include active fuel valves, isolation dampers, or emergency trip strings—swapping the TCRA board requires a complete system de-energization and a safe unit shutdown to avoid generating unintentional signals that could trigger an immediate turbine trip.
Q: Why is matching the exact “ACC” revision suffix important?
GE updated its Mark V boards over time to resolve component obsolescence and enhance field safety (such as updating relay contact materials to prevent sticking). Matching the ACC suffix precisely ensures that the board will drop into your existing system configuration without needing physical wiring changes or firmware patches.
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+86 13313703791
+86 13313703791
seren@ymgkplc.com


