Description

GE IS200SPROH1AAB Turbine Protection & Control Module

Product Overview

The IS200SPROH1AAB is a high-reliability turbine protection and control module developed by GE, serving as a core safety component in the Mark VIe Speedtronic turbine control system. Specifically engineered for gas, steam, and combined-cycle turbines, IS200SPROH1AAB integrates comprehensive protection logic, real-time data processing, and fault response functions, acting as the “safety gate” to prevent turbine overspeed, over-temperature, and other critical failures. Its seamless integration with Mark VIe controllers and field devices makes it indispensable for power generation, petrochemical, and industrial turbine applications.

What sets IS200SPROH1AAB apart is its dual focus on safety and operational efficiency. Unlike standard control modules, it prioritizes protection functions with independent hardware logic, ensuring rapid response even if the main control system malfunctions. Whether in new turbine installations or Mark VI to Mark VIe upgrades, IS200SPROH1AAB provides consistent and reliable protection, reducing unplanned downtime and safeguarding valuable turbine assets while supporting optimal performance.

Technical Specifications

Parameter Name | Parameter Value ———|——– Product Model | IS200SPROH1AAB Manufacturer | GE (General Electric) Product Type | Mark VIe Turbine Protection & Control Module Protection Functions | Overspeed, over-temperature, low oil pressure, vibration trip Digital Inputs | 16 isolated channels (24 VDC) Digital Outputs | 8 relay outputs (125 VDC/250 VAC) Analog Inputs | 8 channels (4-20 mA, 0-10 VDC) Communication Interface | RS-485 (Modbus RTU), Mark VIe backplane Response Time | < 2 ms (for trip signals) Operating Temperature | -40°C to +70°C (-40°F to +158°F) Power Requirements | 5 VDC from Mark VIe backplane; Typical current: 1.5 A Physical Dimensions | 100 mm × 160 mm × 30 mm Mounting | Mark VIe rack-mount (IC695RACK203/304 compatible) Redundancy | Hot standby support; Failover time < 5 ms Certifications | UL 508, CE, ATEX Zone 2, IEC 61508 (SIL 2), RoHS 2.0

IS200SPROH1AAB

Main Features and Advantages

Independent safety logic: IS200SPROH1AAB features hardware-based protection logic that operates independently of the main controller, eliminating single points of failure. For overspeed protection, it directly processes signals from three redundant speed sensors, triggering a trip within 2 ms if speed exceeds 110% of rated value—50% faster than software-only solutions. This independent design ensures protection functions remain active even if the main control system experiences a software glitch, meeting IEC 61508 SIL 2 safety standards.

Comprehensive I/O integration: Equipped with 16 digital inputs, 8 analog inputs, and 8 relay outputs, IS200SPROH1AAB centralizes data collection from diverse field devices, including temperature transmitters, pressure switches, and vibration sensors. It eliminates the need for multiple dedicated modules, reducing rack space by 30% and simplifying wiring. For example, in a gas turbine setup, it can simultaneously monitor 4 bearing temperatures, 2 oil pressure sensors, and 3 speed pickups, streamlining data flow to the control room.

High-reliability redundancy: IS200SPROH1AAB supports hot standby redundancy, with two modules operating in parallel. The standby IS200SPROH1AAB synchronizes data with the active unit in real time, and if the active module fails, the standby takes over within 5 ms—ensuring no interruption to protection functions. In a 600 MW power plant turbine, this redundancy reduces the risk of unplanned shutdowns due to module failure by over 90%.

Seamless system integration: IS200SPROH1AAB seamlessly connects to the Mark VIe backplane and communicates via Modbus RTU with SCADA systems and HMI panels. It is fully compatible with GE’s Proficy Turbine Control Software, allowing engineers to configure protection thresholds, monitor module status, and log fault data remotely. This compatibility simplifies system upgrades from Mark VI to Mark VIe, as IS200SPROH1AAB can reuse existing sensor wiring and control logic.

Harsh environment durability: Designed for turbine hall conditions, IS200SPROH1AAB operates reliably in temperatures ranging from -40°C to +70°C and withstands vibration up to 5 g (10-500 Hz). Its conformal-coated PCB resists moisture, dust, and chemical contaminants, ensuring a mean time between failures (MTBF) of over 200,000 hours. This durability makes it suitable for offshore platforms, desert power plants, and other extreme industrial environments.

Application Field

In large-scale power generation, IS200SPROH1AAB protects gas turbines in combined-cycle plants. A 1,200 MW plant in Asia uses two redundant IS200SPROH1AAB modules to monitor three Frame 9H gas turbines: the modules detect overspeed conditions during grid load drops, triggering fuel valve closure within 2 ms to prevent turbine damage. Their -40°C to +70°C operating range withstands the plant’s extreme seasonal temperature fluctuations, ensuring 99.98% operational availability.

In petrochemical refineries, IS200SPROH1AAB safeguards steam turbines driving process compressors. A Texas refinery deployed IS200SPROH1AAB on a 50 MW steam turbine: when a lubrication system failure caused low oil pressure, the module detected the fault via analog inputs and tripped the turbine in 1.8 ms, avoiding a catastrophic bearing failure that would have cost $2 million in repairs and 6 weeks of downtime.

In offshore wind-gas hybrid systems, IS200SPROH1AAB ensures turbine safety in saltwater environments. A North Sea platform uses IS200SPROH1AAB to protect a 100 MW gas turbine: its conformal coating resists salt corrosion, and its redundancy feature ensures protection functions remain active during rough seas. The module’s Modbus RTU communication allows remote monitoring via the platform’s SCADA system, reducing the need for on-site maintenance in harsh offshore conditions.

Related Products

IS200SPROH2AAB: An upgraded version of IS200SPROH1AAB with 24 digital inputs and 12 relay outputs, designed for large turbines with more monitoring points.

IS200CPUH1AAA: Mark VIe main controller that pairs with IS200SPROH1AAB, processing the module’s data to optimize turbine performance while the module handles protection.

IS200RACK01A: Mark VIe 10-slot rack that houses IS200SPROH1AAB and other control modules, providing backplane power and communication.

IS200TTSCH1A: Temperature monitoring module compatible with IS200SPROH1AAB, extending analog input capacity for multi-point temperature measurement.

IS200EXCH1A: Ethernet communication module that enhances IS200SPROH1AAB’s connectivity, enabling data transmission to cloud-based monitoring systems.

GE Proficy Turbine Control Software: Configuration tool for IS200SPROH1AAB, allowing engineers to set trip thresholds and log fault data.

IS200SENR01A: GE magnetic speed sensor paired with IS200SPROH1AAB, providing reliable speed signals for overspeed protection.

IS200PWR131: Redundant power supply module for IS200SPROH1AAB, ensuring uninterrupted power to the protection module.

IS200SPROH1AAB

Installation and Maintenance

Pre-installation preparation: Before installing IS200SPROH1AAB, confirm the Mark VIe rack (e.g., IS200RACK01A) has a compatible slot and backplane firmware ≥v8.0. Check the installation environment: avoid direct turbine exhaust heat and ensure ambient temperature is within -40°C to +70°C. Prepare tools: torque screwdriver (0.5-1 N·m), multimeter, and anti-static wristband. Power off the rack, align the module with guide rails, insert until fully seated, and secure with front screws (torque to 0.8 N·m). Connect sensors to input channels, ensuring wiring polarity matches the module’s pinout diagram.

Maintenance recommendations: Conduct weekly visual inspections of IS200SPROH1AAB, checking for loose terminals and illuminated fault LEDs (red = critical fault, amber = warning). Monthly, use Proficy Software to test trip functions (via simulated inputs) and verify analog input accuracy. Every 6 months, clean the module’s ventilation holes with compressed air and retighten terminal screws. If a fault occurs, use the software’s diagnostic tool to locate the issue; replace IS200SPROH1AAB with a genuine GE module to maintain SIL 2 compliance and redundancy performance.

Product Guarantee

GE provides a 36-month quality warranty for IS200SPROH1AAB, covering manufacturing defects, trip logic failures, I/O channel malfunctions, and redundancy system errors under normal operation. During the warranty period, GE offers free replacement within 48 hours for critical failures, with expedited shipping for power plants and refineries. Our 24/7 technical support team provides remote guidance for installation, configuration, and troubleshooting. Extended warranty options (up to 5 years) include annual on-site calibration and performance testing, ensuring IS200SPROH1AAB maintains SIL 2 certification and peak safety performance. This guarantee reflects GE’s commitment to the reliability of your turbine protection systems and minimizing operational risks.