Overview
Real-Time Multi-Setting Fault-Point Indicator for AC Catenary Protection
Embedded Files
Existing fault-point indicators often mismatch actual fault locations, delaying fault clearance.
Expansion of electrification and complex layouts (branch and triangle lines) increase fault-location errors.
Conventional devices no longer satisfy domestic fault-location accuracy requirements under these conditions.
Real-time data-synchronized, multi-ratio current settings reduce fault-point indication error.
Improved device remains compatible with existing AC feeding protection systems while meeting domestic standards.
Core Competencies
Purpose
High-precision, real-time fault-point indication device for AC catenary feeding systems, minimizing location error under complex track layouts and diverse fault types.
Real-Time AT Current–Based Fault-Point Indication
Real-Time AT Current–Based Fault-Point Indication
Uses AT feeder currents along all AT feeding sections to determine fault sections and fault points in AC double-track feeding systems and branch-line areas.
Multi-Ratio Current Setting for Diverse Feeding Systems
Multi-Ratio Current Setting for Diverse Feeding Systems
Supports real-time data–synchronized multi-ratio current settings so various AC feeding configurations and fault types can still satisfy domestic fault-location accuracy requirements.
GPS Time Synchronization Between Main and Auxiliary Units
GPS Time Synchronization Between Main and Auxiliary Units
Applies GPS-based time synchronization to reduce indication errors caused by communication time differences between main and auxiliary processing units.
IEC 61850-Based Interface for Substation Automation
IEC 61850-Based Interface for Substation Automation
Applies IEC 61850 technology for railway substation automation, enabling compatibility and performance improvement compared with existing products.
Expected Benefits
All-Fault-Type Coverage
– Extends fault-point indication from catenary/rail and feeder/rail earth faults to all catenary faults regardless of fault type.Cost Reduction & Market Impact
– About 20% cost reduction compared with existing products; expected domestic sales of about KRW 1 billion per site per year.
Certifications
Field application – Applied on AREX line (Seoul ATP–Gyeyang SS–Terminal 2 ATP section).
IEC 61850-based interface – Designed for railway substation automation using IEC 61850.
TRL 9
Development progressed up to the commercialization stage.
Contact
Korea Railroad Research Institute (KRRI)
Global Business Department
Dr. Hosung Jung
E-mail: hsjung@krri.re.kr
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