Description
- Product Model: IS210TRPGH1B
- Manufacturer: GE
- System Platform: Mark VIe / Mark VI Speedtronic
- Relay Configuration: Nine magnetic relays arranged in three independent voting circuits (2-out-of-3 TMR logic)
- Trip Solenoids Supported: Three independent trip solenoids for fuel shutoff and emergency protection
- Control Interface: Controlled by PTUR I/O pack in Mark VIe or equivalent TMR processor in Mark VI
- Contact Rating: Rated for 125 V DC / 24 V DC operation, typically 5 A resistive load per relay contact
- Power Supply Requirements: 24 V DC nominal from system power distribution, with monitoring for undervoltage
- Operating Temperature Range: -30°C to +65°C, designed for industrial turbine enclosure environments
- Humidity Tolerance: 5% to 95% non-condensing, with conformal coating for moisture resistance
- Mounting Type: DIN rail mountable, compact form factor for control cabinet integration
- Dimensions (approx.): Standard GE terminal board footprint, typically 150-200 mm width for rack compatibility
- Weight: Approximately 0.6-1.0 kg, lightweight for easy field replacement
- Isolation: Galvanic isolation on relay outputs to prevent ground loops and enhance noise immunity
- Certification Standards: CE marked, compliant with UL 508 for industrial control equipment, and meets IEEE/ANSI standards for turbine safety systems
- Mean Time Between Failures (MTBF): High reliability design exceeding 100,000 hours in continuous duty
- Response Time: Relay actuation < 20 ms, critical for rapid turbine trip initiation during overspeed or over-temperature events
Technical Architecture & Functional Positioning
The IS210TRPGH1B functions as a field-level termination and actuation board in the protection hierarchy of GE Speedtronic turbine control systems. Positioned at the I/O layer, it receives command signals from redundant I/O controllers (such as PTUR packs in Mark VIe configurations) and executes voting logic to energize or de-energize trip solenoids. This 2-out-of-3 (TMR) architecture ensures that a single fault—whether in a relay, wiring, or controller—does not cause an erroneous trip or prevent a necessary shutdown, providing the fault tolerance required for critical rotating machinery protection.
Core technologies include mechanically latching or non-latching magnetic relays configured in parallel voting groups, with built-in contact monitoring to detect welded or failed contacts. Relay status feedback is returned to the I/O pack for diagnostics, enabling predictive maintenance alerts before a protection function is compromised. This design directly addresses key engineering challenges in gas turbine applications: preventing false trips that lead to unnecessary outages, while guaranteeing reliable shutdown during hazardous conditions like flameout, overspeed, or high vibration. The board’s DIN rail mounting and terminal block wiring simplify field connections to external solenoids, reducing installation time and minimizing points of failure in high-vibration environments.
The module’s architecture supports seamless integration into both simplex and TMR system topologies, with provisions for online testing of individual voting paths without disrupting turbine operation. This capability is essential for extending maintenance intervals in combined-cycle power plants or industrial cogeneration setups, where availability directly impacts revenue.
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