Product Description

Overview

The GE IS200TTURH1CFD (IS230TNTRH1C) is a high-performance Turbine Terminal Board developed for Mark VIe control systems. It serves as the primary interface between field sensors and the VTUR turbine control modules, managing critical turbine signals including speed detection, overspeed protection, and breaker control.

This version incorporates functional and artwork revisions to enhance signal integrity and reliability. It supports both simplex and Triple Modular Redundant (TMR) configurations, providing high assurance for turbine safety and performance.

Key Features

High-Speed Speed Monitoring

• Handles pulse inputs from magnetic pickups (MPUs) and proximity sensors.

• Detects rotational speeds from low turning-gear rates to high-speed overspeed conditions.

• Includes onboard pulse-shaping circuitry for accurate digital signal delivery.

Turbine Protection and Control

• Provides hardware foundation for overspeed trip logic and emergency shutdown.

• Monitors shaft voltage and current to safeguard bearings from electrical damage.

• Controls main breaker relays in 125 VDC systems.

Redundancy and Reliability

• Compatible with TMR architectures for signal voting across multiple I/O packs.

• Ensures turbine control remains active even if one module fails.

• Supports maintenance or replacement of I/O packs while the turbine operates.

Robust Diagnostics

• Continuous monitoring of sensor inputs to detect open circuits, short circuits, or degraded signals.

• Provides early warning of faults before triggering trips.

Environmental Hardening

• Conformal-coated PCB protects against dust, humidity, and electrical noise.

• Rated for -30°C to +65°C operation, with vibration and EMI tolerance suitable for turbine compartments.

Technical Specifications

Applications

• Gas and steam turbine speed monitoring and protection

• Turbine overspeed trip and breaker control

• Synchronous generator feedback interface

• High-reliability industrial and power generation environments

FAQ

Q: Can this board operate in TMR configurations?
A: Yes, it supports Triple Modular Redundant setups for maximum turbine control reliability.

Q: What sensors can it interface with?
A: Magnetic pickups and proximity sensors for turbine speed and shaft monitoring.

Q: Is it suitable for harsh environments?
A: Yes, designed with conformal coating and thermal/vibration resilience for turbine control rooms.

Q: What is the frequency range for speed inputs?
A: 2 Hz to 20 kHz with ±0.05% pulse rate accuracy.