GE IS220PTURH1A Turbine Protection I/O Pack

GE IS220PTURH1A Turbine Protection I/O Pack

The IS220PTURH1A is a Primary Turbine Protection I/O Pack from the GE Speedtronic Mark VIe control system series (also branded under Emerson). It serves as a critical safety and control module for gas and steam turbines, providing high-integrity speed monitoring, overspeed protection, and turbine control signal interfacing. The module integrates a CPU board, turbine control board, and analog acquisition board in a compact, rugged enclosure, supporting simplex or TMR (Triple Modular Redundancy) configurations for safety-critical applications.

Application Fields

Power Generation: Gas/steam turbine control and protection in thermal power plants, combined-cycle facilities, and independent power producers (IPPs).
Oil & Gas: Turbine-driven compressors, pumps, and power generation systems in refineries, pipelines, and offshore platforms.
Heavy Industry: Turbine monitoring and safety interlocks in chemical, petrochemical, and pulp & paper manufacturing.
Marine: Turbo machinery control and protection for marine propulsion and power systems.

Technical Specifications

Parameter	Specification
Model Number	IS220PTURH1A
Product Type	Primary Turbine Protection I/O Pack
Series	GE Speedtronic Mark VIe (Emerson)
Speed Inputs	4 passive magnetic inputs (2 RPM sensitivity)
Communication Ports	Dual 10/100 Mbps Ethernet (IONet)
Power Supply	18–36 VDC, 12 W
Operating Temperature	-40°C to +85°C
Redundancy	Simplex, Dual, TMR (Triple Modular Redundancy)
Mounting	TTURH1C terminal board
Enclosure	Rugged black casing with airflow holes
Dimensions	50 mm × 50 mm × 20 mm
Weight	Approx. 0.5 kg
Country of Origin	USA (Salem, VA plant)

Function

Primary Overspeed Protection: Features 4 passive magnetic speed inputs to monitor turbine speed, generating median speed signals for control and primary overspeed trip logic to prevent catastrophic failure.
Turbine Control & Monitoring: Collects real-time data on speed, temperature, and pressure; executes control algorithms for stable turbine operation across varying load conditions.
Redundancy & Reliability: Supports simplex, dual, or TMR configurations to eliminate single points of failure; enables hot-swappable replacement and auto-reconfiguration via controller firmware download.
Communication Interface: Equips dual 10/100 Mbps Ethernet ports for I/O network communication, plus a DC-62 pin connector for terminal board (TTURH1C) integration.
Diagnostics & Status Monitoring: Includes LED indicators, internal temperature sensor, and continuous health monitoring for sensors, networks, and internal circuits.

Recommended Similar Series Products

All below are GE/Emerson Speedtronic Mark VIe series I/O packs and modules, compatible with the same turbine control system architecture as IS220PTURH1A:

IS220PDOAH1A
- Type: Proportional Digital Output (PDOA) Pack
- Use Case: Provides discrete output interfacing between I/O Ethernet networks and terminal boards for turbine control and safety circuits.
IS220PAICH1A
- Type: Analog Input (AI) Pack
- Use Case: Monitors analog signals (4–20 mA, RTD/TC) from turbine sensors (temperature, pressure, vibration) for real-time process monitoring.
IS220PSVOH1A
- Type: Solenoid Valve Output (SVOH) Pack
- Use Case: Drives safety-critical solenoid valves for turbine emergency shutdown (ESD) and protection systems.
IS220PTURH1B
- Type: Updated Primary Turbine Protection Pack (Rev B)
- Use Case: Enhanced version of IS220PTURH1A with improved diagnostics and extended temperature range for harsh industrial environments.
IS220TBAOH1A
- Type: Terminal Board Analog Output (TBAOH) Pack
- Use Case: Delivers analog control signals to turbine actuators and valves, complementing primary protection functions in closed-loop control systems。