Product Short Description
The GE IS220PTURH1B is a high-reliability, microprocessor-based primary turbine protection and control I/O pack designed for the GE Mark VIe and Mark VI Speedtronic turbine control systems. As a core safety-critical component, it serves as the primary electrical interface between the turbine’s field sensors, actuators, and the Mark VIe controller network. The module integrates a dedicated turbine control processor, high-speed analog acquisition circuitry, and dual redundant Ethernet ports to execute real-time monitoring, protection, and trip logic for gas and steam turbines.
Description
Technical Specifications
- Manufacturer: General Electric (GE)
- Series: Mark VIe/Mark VI Speedtronic Control System, IS220 Series
- Functional Acronym: PTUR (Primary Turbine Protection)
- Revision: H1B
- Processor: 32-bit embedded microcontroller, 600 MHz
- Memory: 128 MB non-volatile flash memory, 64 MB DDR RAM
- Power Supply: 24 VDC nominal (18–30 VDC range), 18 W typical consumption
- Communication Ports:
- 2 × Redundant 10/100 Mbps Ethernet (RJ45, IONet protocol)
- 1 × Infrared (IR) diagnostic port
- Input Channels:
- 4 × Passive magnetic speed sensor inputs
- 1 × Bus voltage input (115/230 VAC)
- 1 × Generator voltage input
- 1 × Shaft voltage input
- 1 × Shaft current input
- 8 × Flame detector inputs
- Output Channels:
- 3 × Solid-state trip relay outputs (main breaker, trip logic)
- Connector Type: 62-pin DC connector (I/O signals), dual RJ45 (Ethernet), 3-pin power input
- Form Factor: Compact I/O pack, single-slot mounting
- Status Indicators: 8 front-panel LEDs (Power, Run, Fault, Comms, Speed, Voltage, Flame, Trip)
- Dimensions: 155 mm × 100 mm × 40 mm (6.1 in × 3.9 in × 1.6 in)
- Weight: 0.54 kg (1.2 lbs)
- Operating Temperature: -20°C to +60°C (-4°F to 140°F)
- Storage Temperature: -40°C to +85°C (-40°F to 185°F)
- Humidity: 5% to 95% non-condensing
- PCB Coating: Conformal coated for dust, moisture, and vibration resistance
- Mounting: Direct attachment to TTURH1C or TRPAH1A/H2A terminal boards
- Certifications: UL 508, CE, ATEX Class I Division 2
- Country of Origin: United States
Key Features
- Primary Turbine Protection & Trip Logic: Executes safety-critical trip functions for overspeed, overvoltage, overcurrent, and flame failure conditions, ensuring immediate turbine shutdown during faults.
- Comprehensive Turbine Parameter Monitoring: Simultaneously processes 4 speed sensors, bus/generator/shaft voltage, shaft current, and 8 flame sensors for full turbine operational visibility.
- Dual Redundant Ethernet Communication: Two 10/100 Mbps ports with IONet protocol provide redundant network paths, eliminating single points of failure for control and safety data.
- High-Speed Real-Time Processing: 600 MHz processor and deterministic architecture deliver sub-millisecond response times for critical protection events.
- Onboard Self-Diagnostics & IR Port: Continuous monitoring of board health, signal integrity, and communication links; IR port enables local diagnostic access and firmware updates.
- Industrial-Grade Ruggedness: Conformal coating, wide temperature tolerance, and vibration-resistant design ensure reliable operation in high-vibration, dusty power plant environments.
- Seamless Mark VIe Integration: Plugs directly into Mark VIe racks; compatible with GE Control Systems Toolbox for configuration, monitoring, and remote diagnostics.
- TMR (Triple Modular Redundancy) Compatibility: Supports simplex, dual, and TMR configurations for maximum system reliability in critical power generation applications.
- Non-Volatile Flash Memory: 128 MB flash storage retains configuration data and firmware without battery backup, reducing maintenance and data loss risks.
- Plug-and-Play Deployment: Auto-reconfiguration and firmware download capabilities reduce setup time and simplify system commissioning.
Applications
- Power Generation Plants: Deployed in combined-cycle, thermal, and hydroelectric power stations for gas and steam turbine control and protection.
- Gas & Steam Turbine Control: Manages critical turbine parameters such as speed, voltage, current, and flame status to ensure safe and efficient operation.
- Oil & Gas Industry: Used in refineries, petrochemical plants, and compressor stations to protect and control gas turbines driving compressors and generators.
- Industrial Process Control: Applied in large manufacturing facilities for turbine-driven power generation and mechanical drive applications.
- Critical Infrastructure Protection: Ensures reliable turbine operation and fault response in utility facilities, preventing unplanned shutdowns and equipment damage.
- Condition Monitoring & Predictive Maintenance: Provides real-time operational data for trend analysis, fault diagnosis, and performance optimization of turbines.
System Compatibility
- Control System: GE Mark VIe, Mark VI Speedtronic Turbine Control Systems
- Terminal Boards: TTURH1C, TRPAH1A, TRPAH2A, STURH1A
- Communication Protocols: GE IONet, TCP/IP
- Configuration Software: GE Control Systems Toolbox
- Redundancy: Compatible with simplex, dual, and TMR (Triple Modular Redundancy) Mark VIe configurations






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