GE IS200VTURH1BAB Primary Turbine Protection Board for Speedtronic Systems

The IS200VTURH1BAB delivers critical turbine protection for General Electric's Mark VI Speedtronic control systems. This advanced protection board provides comprehensive overspeed monitoring and emergency trip functionality. It ensures maximum operational safety through sophisticated speed measurement and relay control systems.

Technical Specifications & Performance Data

• Manufacturer: General Electric
• Model Number: IS200VTURH1BAB
• Product Type: Primary Turbine Protection Board
• Control System Series: Mark VI Speedtronic
• Board Dimensions: 11.00" × 9.00" × 3.00"
• Operating Temperature: 0°C to +60°C
• Voltage Rating: 125V DC operational voltage
• Common Mode Range: ±5V signal tolerance
• Analog Inputs: 6 voltage monitoring channels
• Speed Inputs: 4 passive pulse rate devices
• Frequency Range: 2 Hz to 20 kHz measurement
• Speed Detection: 2 RPM minimum turning gear speed
• Flame Detectors: 8 Geiger-Mueller monitor inputs
• Trip Relays: Controls 3 primary overspeed relays
• Response Time: <50ms for overspeed trip initiation
• Signal Resolution: 16-bit precision measurement

Turbine Speed Monitoring System

• Four passive magnetic speed inputs track turbine rotational velocity
• The system detects speeds as low as 2 RPM for turning gear operation
• Sixty-tooth wheel compatibility ensures accurate position tracking
• Automatic zero-speed detection initiates safety protocols when needed
• Wide frequency range handles all operational speed conditions

Primary Overspeed Protection

• The board calculates normal primary overspeed trip setpoints continuously
• It transmits trip signals to TRPx terminal boards for immediate action
• Three primary overspeed trip relays provide redundant protection
• Emergency solenoids activate within milliseconds of trip detection
• Both VTUR and VPRO systems can initiate overspeed protection

System Architecture & Redundancy

• Triple Modular Redundant (TMR) configuration uses nine magnetic relays
• Simplex systems utilize three relays for basic protection requirements
• Electrical Trip Devices (ETD) interface through TRPG terminal boards
• Multiple trip board types support various turbine applications
• Automatic generator synchronization ensures proper grid connection

Monitoring & Diagnostic Capabilities

• Shaft voltage and current monitoring detects insulation issues
• Eight flame detector inputs provide combustion monitoring for gas turbines
• Generator and bus voltage tracking enables automatic synchronization
• Trip relay position monitoring confirms proper safety system status
• Three LED indicators display critical diagnostic information clearly

Hardware Components & Construction

• Single-slot faceplate with J5 cable connector for system integration
• Over sixty integrated circuits provide sophisticated processing power
• Thirteen transistors handle power switching and signal conditioning
• Two backplane connectors enable VME rack communication
• Daughterboard mounting capability allows for future expansion
• Conformal coating protects against harsh industrial environments

Installation & Configuration Guide

• Mount the board in designated VME rack slot with proper grounding
• Connect four passive magnetic speed sensors to appropriate inputs
• Wire generator and bus voltage connections for synchronization
• Configure TRPG terminal board interfaces for trip solenoid control
• Set overspeed trip points according to turbine specifications
• Connect flame detector inputs for gas turbine applications
• Verify all LED indicators show proper operational status
• Test emergency trip functionality before placing in service

Application-Specific Configurations

• TRPG boards serve gas turbine applications with TREG emergency interfaces
• TRPS boards handle small and medium steam turbine system requirements
• TRPL boards manage large steam turbine protection needs
• Each configuration supports up to three Electrical Trip Devices
• Automatic turning gear engagement based on speed detection

Packaging & Shipping Information

• Factory-new IS200VTURH1BAB protection board
• Anti-static packaging with shock-absorbent protective materials
• Complete mounting hardware and connector accessories included
• Global express shipping via FedEx, UPS, and DHL available
• Comprehensive installation documentation and technical guides

Expert Technical Support

• What speed measurement capabilities does the VTUR board provide?
• The system monitors turbine speed using four passive pulse rate devices with 2 RPM to 20,000 RPM range and 2 RPM turning gear detection sensitivity
• How many trip relays does the system control in different configurations?
• TMR systems utilize nine magnetic relays while simplex configurations use three relays, all interfacing with Electrical Trip Devices through TRPx boards
• What flame detection capability does the board include?
• The system monitors eight Geiger-Mueller flame detectors for gas turbine applications, operating with 335V DC, 0.5mA external power supply
• Can the board initiate trips from multiple protection systems?
• Yes, overspeed trips can originate from either the VTUR primary protection system or the VPRO emergency protection system for redundant safety
• What synchronization functions does the protection board perform?
• The board enables automatic generator synchronization by monitoring generator and bus voltages while controlling main breaker relay coil 52G closure

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