Description

The IS220PTURH1B is a primary turbine protection pack engineered by GE Energy for the Mark VIe Series control system. This unit acts as a specialized hardware interface to safeguard and regulate gas and steam turbine operations, frequently utilized alongside distributed control systems (DCS) in combined cycle power plants to monitor the Heat Recovery Steam Generator (HRSG/boiler) and auxiliary plant functions. Internal board topography consists of a central processor board, an analog acquisition board, and a hardware board optimized specifically for turbine safety routines. The IS220PTURH1B provides a dual-way electrical communication interface linking one or two local I/O Ethernet networks directly to the turbine control terminal boards. It handles specialized field input monitoring, tracking parameters such as speed inputs, voltage signals, and flame sensors, while driving critical outputs directly to the main breaker.

Features

• Provides critical turbine safety limits and real-time protection loop processing
• Features a functional revision B assembly equipped with full conformal PCB protective coating
• Functions over both input and output paths to handle comprehensive turbine status checks
• Designed to connect one or two distinct I/O Ethernet networks to the field terminal boards
• Integrates an internal board layout comprising a processor board and an analog acquisition board
• Supports flexible architectural voting configurations across simplex and TMR operating modes
• Monitors multiple critical signals including speed sensors, shaft voltages, and flame sensors
• Outfitted with faceplate diagnostic LEDs to report continuous tracking state indicators

Applications

• Combined cycle power plant turbine control and protection loops
• Gas and steam turbine primary overspeed and limit safeguarding
• Auxiliary plant equipment and boiler drum level integration
• Main breaker trip execution management

Technical Specifications

Connections/Interfaces

Installation Guidelines

• Board Interfacing: Plug the hardware module directly into its matching slot on the TTUR terminal board assembly to complete physical mounting.
• Network Wiring: Run system communication links into the dual RJ45 Ethernet connectors to secure proper dual-way data handshakes with the controllers.
• Power Provision: Verify that the 3-pin power input receives a steady supply of 28 V dc directly from the underlying host terminal board.
• LED Status Verification: Upon applying system power, check the faceplate diagnostic LEDs; confirm that the LINK LED illuminates a solid green color to indicate an active network handshake.