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RELAY

Alstom LFDC1015ADD01ED Digital Directional Comparison Protection Relay

Name: Alstom LFDC1015ADD01ED Digital Directional Comparison Protection Relay
Brand: Alstom
SKU: 750
Availability: InStock

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USED

Specification Details
Brand: Alstom
Part Number: LFDC1015ADD01ED
Relay Family: LFDC Series (Modular Transmission Protection Line)
Protection Schemes: Directional Overcurrent (DOC) & Directional Earth Fault (DEF)
Input Metrics: Instrument Transformer Operated (Standard CT & VT inputs)
Communication Platform: Dedicated Pilot Channel Telecommunications Interface
Auxiliary Operating Voltage: 110V / 220V AC/DC (Model Variant Dependent)
Output Interfacing: Multi-contact configuration (Dedicated Trip, Alarm, and Auxiliary contacts)
Status:- Used Excellent Working (As Per Photos)
Country of Origin: Made in UK
Shipping:- Fast & Safe Worldwide Shipping Available.

Brand	Alstom
Category	RELAY

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The Alstom LFDC1015ADD01ED is a utility-grade, digital directional comparison protection relay purpose-built for high-integrity overhead transmission and feeder line protection applications. Installed at critical nodes within grid infrastructure—such as power plants and utility substations—this digital relay acts as a front-line defense mechanism. It evaluates fault direction vectors by interpreting CT (Current Transformer) and VT (Voltage Transformer) input signals seamlessly.

By utilizing advanced Pilot Wire and Carrier-Aided Comparison Scheme Types, the relay communicates across a pilot channel interface to cross-verify fault locations between remote transmission terminals. If a fault occurs within its zone, the high-speed comparison tripping logic swiftly isolates the line, preserving grid equilibrium and mitigating upstream equipment degradation. For local diagnostics, the front fascia features prominent LED status indicators, keeping field engineers updated on terminal health and fault characteristics.

EHV/UHV Optimized Protection: Designed specifically to clear critical faults across heavy utility power substations and transmission corridors.
Carrier-Aided Comparison Logic: Features pilot wire and carrier-aided comparison schemes to guarantee flawless end-to-end telemetry coordination.
High-Speed Comparison Tripping: Maximizes transient stability with sub-cycle high-speed comparison trip execution.
Comprehensive Directional Matrix: Combines embedded Directional Overcurrent (DOC) and Directional Earth Fault (DEF) modules.
Dual Frequency Adaptability: Completely compatible with global utility operating frequencies of 50 Hz and 60 Hz.
Industrial Panel Mount Form: Standardized rack/panel mounting profile optimized for heavy industrial protection and control enclosures.