General Electric IS200LSGIH1A LSGI Interface Card

Product Overview

The IS200LSGIH1A is a Static Starter Control Gating Interface Card manufactured by General Electric for the EX2100e excitation system. This critical interface component links the UCSB controller to power conversion bridges and provides independent overcurrent protection for excitation systems.

Technical Specifications

• Manufacturer: General Electric (GE)
• Part Number: IS200LSGIH1A
• Product Type: Static Starter Control Gating Interface
• Series: EX2100e Excitation Control System
• Input Voltage: 28 VDC Operating Supply
• Power Transfer: ±24 VDC to FCSA Board
• Manual Reference: GEH-6373 Load Commutated Inverter Manual
• Seismic Rating: Section 2312 Zone 4 Compliance
• Manufacturing Location: Salem, VA, USA
• Country of Origin: United States (USA)

Primary Functions

• Interface Role: Connects UCSB Controller to Power Conversion Bridges
• Overcurrent Protection: Independent 52SS Relay Control
• Signal Management: Analog Outputs (0-10V) Processing
• Power Distribution: 28VDC Cabinet Power Management
• Thyristor Control: Six Thyristors per Bridge via FGPA Boards
• System Protection: Instantaneous Overcurrent Response

Power Distribution System

• Main Supply: 28 VDC from Primary Power Source
• Component Powering: LSGI Board, UCSB Controller, LSTB Board
• Switch Power: 8-Port Switch Power Supply
• FCSA Power: ±24 VDC Transfer to FCSA Board
• LEM Power: Local Equipment Module Power via FCSA
• Cabinet Distribution: Complete Control Cabinet Power Management

Communication Interfaces

• FGPA Interface: Three Field-Programmable Gate Array Boards
• Signal Connection: 12-Pin Plug with Copper Wire
• Data Reception: SCR Voltage Information from FHVA Card
• Controller Link: UCSB Controller Communication Path
• Bridge Control: Power Conversion Bridge Interface
• Analog I/O: Pretrigger Contact and Cooling Return Inputs

Physical Design Features

• Board Sections: Two Distinct Functional Sections
• Standoffs: Four Standoffs per Section for Daughterboards
• Connectors: Three Vertical Pin Connectors with Secure Clips
• Augat Connectors: Four Specialized Component Connectors
• Component Integration: Diodes, Resistors, Capacitors in Connectors
• Expandability: Daughterboard Attachment Capability

System Integration

• Control Software: EX2100e Excitation Control System
• Configuration Tool: ToolboxST Application Interface
• Signal Conditioning: ESYS Signal Conditioner Integration
• Control Blocks: Visual Component Editor Representation
• Sampling Technology: High-Speed AC Waveform Analysis
• Algorithm Processing: Advanced Mathematical Calculations

Protection Features

• Overcurrent Response: Instantaneous 52SS Relay Activation
• Bridge Protection: Input Power Removal During Faults
• System Safeguarding: Complete Unit Damage Prevention
• Monitoring Circuits: Sophisticated Failure Detection
• Automatic Activation: Backup System Engagement
• Transfer Capability: Bidirectional Bumpless Transfer

Control System Features

• Redundant Control: Simplex Bridge Option Availability
• MTBFO Improvement: Higher Mean Time Between Forced Outages
• Bridge Redundancy: N+1 Power Bridge Configuration
• Pulse Control: Single PCM for Medium Static Exciters
• Operator Control: Manual Bridge Activation/Deactivation
• Transfer Delay: SCR Leg Fuse Clearance Consideration

Application Areas

• Primary Application: EX2100e Excitation Control Systems
• Generator Types: Steam, Gas, and Hydro Generator Control
• Motor Control: Synchronous Motor Speed Regulation
• Drive Systems: Static Adjustable Frequency Drives
• Power Conversion: SCR Bridge Control and Management
• System Integration: ICS and HMI System Compatibility

Key Features

• Independent Overcurrent Protection via 52SS Relay Control
• 28 VDC Power Distribution for Complete Control Cabinet
• Three FGPA Board Interface for Thyristor Control
• 12-Pin Plug Communication Interface
• Two-Section Design with Daughterboard Expansion
• EX2100e System Compatibility and Integration
• GEH-6373 Manual Documentation Support

System Configuration Options

• Redundant Control: M1, M2, and C Controller Configuration
• Simplex Bridge: Single Full-Wave SCR Bridge Option
• WBU Option: Small to Medium Static Exciter Support
• Bridge Redundancy: N+1 Power Bridge Configuration
• Control Transfer: Bidirectional Active/Backup Switching
• Monitoring System: Automatic Failure Detection

Frequently Asked Questions

What is the primary function of this interface card?
The IS200LSGIH1A serves as a Static Starter Control Gating Interface that connects the UCSB controller to power conversion bridges while providing independent overcurrent protection for EX2100e excitation systems.

What protection does it provide?
During instantaneous overcurrent events, it can open the 52SS protection relay to remove input power from the bridges, preventing system damage independently of the main controller.

What power distribution functions does it perform?
The card distributes 28VDC power throughout the control cabinet to the LSGI board, UCSB controller, LSTB board, 8-port switch, and transfers ±24VDC to the FCSA board for LEM power.

What systems is it compatible with?
It is designed for the EX2100e excitation control system and works with various generator types including steam, gas, and hydro generators.

What documentation covers this card?
Complete operational and installation information is provided in the GEH-6373 Load Commutated Inverter User's Manual from General Electric.

Contact Information

• Sales Inquiries: sales@nex-auto.com
• Phone/WhatsApp: +86 153 9242 9628

Partner: AutoNex Controls Limited