Description
Product Description
Product Parameters
| Parameter Category | Specifications of GE IS220PPROS1B |
|---|---|
| Product Series | GE Mark VIe Series |
| Type | Emergency Turbine Protection I/O Pack (PPRO) |
| Core Function | Backup overspeed protection, primary control watchdog, generator sync check |
| Speed Signal Support | 3 types (hardware overspeed, acceleration/deceleration, basic overspeed) |
| Redundancy | TMR-capable (3 PPRO packs for triple modular redundancy) |
| Communication Interface | Ethernet IONet (connects to Mark VIe control modules) |
| Terminal Board Compatibility | TREL (large steam), TRES (small/medium steam), TREA (general turbine) |
| Power Requirements | 24VDC (Mark VIe system standard) |
| Operating Temperature | 0°C to +60°C |
| Storage Temperature | -40°C to +85°C |
| MTBF | > 150,000 hours |
| Certifications | UL, CE, IEC 61508 compliant |
Advantages and Features
- Independent Backup Protection
The GE IS220PPROS1B operates separately from primary PTUR packs, ensuring protection even if the main control system fails, meeting IEEE turbine protection standards.
- Flexible Redundancy & Scalability
Supports TMR for mission-critical plants and single-pack configurations for basic systems, adapting to diverse power generation setups.
- Multi-Speed Signal Processing
Handles three speed signal types, enabling precise overspeed/acceleration monitoring for gas/steam turbines of all sizes.
- Seamless IONet Integration
Ethernet IONet connectivity ensures real-time data exchange with Mark VIe control modules, reducing latency in trip response and simplifying diagnostics.
Application Cases in Application Fields
- Coal-Fired Power Plant Turbine Protection
A Chinese coal-fired plant integrated three GE IS220PPROS1B packs in TMR configuration for its 660MW steam turbines. The PPROs detected a primary control overspeed anomaly, triggering a backup trip within 20ms to prevent turbine damage, cutting unplanned downtime by 45% and avoiding $2M in repair costs.
- Combined-Cycle Gas Turbine Grid Stability
A European combined-cycle plant used the GE IS220PPROS1B to monitor generator synchronization. During a grid disturbance, the module verified loss of sync and initiated a backup trip, preventing generator islanding and maintaining grid compliance.
- Industrial Cogeneration Turbine Safety
A chemical plant deployed the GE IS220PPROS1B for its cogeneration steam turbine. The independent watchdog function detected a primary control communication failure, triggering a safe shutdown and avoiding a 72-hour production outage.
Comparisons with Competing Products
| Product Model | GE IS220PPROS1B | ABB Advant OCS 800xA T810 | Siemens SPPA-T3000 Turbine Protection |
|---|---|---|---|
| Core Function | Independent backup overspeed + watchdog (Mark VIe-native) | Primary/backup integrated protection | Primary protection with external backup |
| Redundancy Support | TMR (3 PPRO packs) | 2oo3 (two-out-of-three) voting | Partial redundancy (separate modules) |
| Speed Signal Types | 3 (hardware overspeed, acceleration, basic) | 2 (overspeed, basic speed) | 2 (overspeed, sync check) |
| Control System Compatibility | Mark VIe (native integration) | Advant OCS 800xA | SPPA-T3000 |
| Trip Response Time | < 20ms (IONet-connected) | 30-50ms | 25-40ms |
| Total Cost of Ownership | Low (native redundancy, no external hardware) | Medium (external backup modules) | Medium (complex integration) |
Selection Suggestions and Precautions
Selection Suggestions
- Turbine Type & Size
Choose the GE IS220PPROS1B for gas/steam turbines; pair with TREL (large steam), TRES (small/medium steam), or TREA (general) terminal boards for optimal fit.
- Redundancy Needs
Opt for TMR configuration (3 PPRO packs) for nuclear/coal plants; single-pack setups suffice for industrial cogeneration systems.
- Mark VIe Compatibility
Prioritize the GE IS220PPROS1B for Mark VIe DCS—native IONet integration eliminates compatibility issues and reduces engineering time.
Precautions
- Terminal Board Matching
Ensure compatibility between the GE IS220PPROS1B and trip terminal boards (TREL/TRES/TREA) to avoid trip logic mismatches.
- Redundancy Configuration
Follow TMR guidelines for three-PPRO setups; verify Ethernet IONet connectivity for seamless data exchange with control modules.
- Power Supply Stability
Use regulated 24VDC power to prevent voltage fluctuations that could affect speed signal processing and trip response.
- Firmware Updates
Regularly update the GE IS220PPROS1B firmware via [Product Link to be Inserted] to maintain compliance with IEEE C37.106 turbine protection standards.
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