Phase loss protection relay INGEPAC EF LD

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Product name
INGEPAC EF LD

Description
INGEPAC EF LD is a line-differential protection relay for segregated-phase line protection, designed for overhead transmission lines and underground cables across voltage levels. It offers comprehensive protection functions, distance protection options and advanced measurement, recording and communication features for utility and industrial substations.

Differential protection

• 87, 87LG, 87N
• Second-harmonic restrain and blocking
• V/f overexcitation and 5th harmonic blocking
• Directional supervision
• Saturation detector
• Load compensation
• Function 86 (breaker failure)
• Trip supervision

Distance

• 21 Quadrilateral and MHO
• 21 High-speed
• Zone 1 extension
• Double-circuit lines, series compensation and capacitive voltage transformers compatibility
• Transformer backup protection

Other functions

• SOTF (switch-on-to-fault)
• 27, 59, 59N, 47 (V2) — undervoltage/overvoltage and voltage-related functions
• 81M/81 ROCOF
• 3x50/51 (67), 50N/51N (67N), 50G/51G
• 46TOC (67Q), 46IOC (67Q)
• 46FA open-phase detection
• 50 CSC second-harmonic braking
• Second- and fifth-harmonic blocking
• 37 underflux (loss of excitation)
• 49 thermal image, 49T (only with RTD)
• 32 power measurement

Main features

• Native IEC 61850 platform
• High-accuracy measurement and oscillographic recording
• Supported protocols: IEC 61850, DNP3, IEC 870-5-103/104, Modbus, PROCOME
• Network redundancy: PRP, HSR or link-fail tolerance
• Logic and automation under IEC 61131-3
• Capture of Multicast Sampled Values (MSV) per IEC 61850-9-2 / IEC 61869-9
• Time synchronization: SNTP, IEEE 1588 v2 (PTP), IRIG-B or PPS
• Configuration tool: pacFactory
• Local display for on-site visualization

Cybersecurity

• Compliance with IEC 62351, IEC 62443 and IEEE 1686-2013
• User account management and role-based access control (RBAC)
• Access attempt control and session management
• Security audit and syslog
• Enable/disable communication ports
• Software/firmware update management
• Cryptography: HTTPS, SFTP, SSH, CMS/PKCS#7
• Secure web and file access (HTTPS, SFTP)
• Malware protection and firewall
• Certificate management (LDAP)

Key data

• Multiterminal applications: suitable for 2- and 3-terminal topologies
• Full distance function: up to 5-zone Quad/MHO distance protection (optional)
• Multi-breaker applications: independent CT inputs

Applications and family

• Scopes: Smart Grids, Transmission, Distribution
• Product family: Protection and control

Media and documentation

• Demonstration video and MP4 available
• Product sheet / catalogue available in PDF

Technical characteristics / specifications

• Type: Segregated-phase line differential protection
• Protection functions: 87, 87LG, 87N, second-harmonic restrain/block, 5th-harmonic block, 86, 50/51 and neutral/ground variants
• Distance protection: 21 Quadrilateral/MHO, high-speed 21, Zone 1 extension, up to 5 zones (optional)
• Compatibility with double-circuit lines, series compensation and capacitive transformers
• Oscillography and high-precision measurement acquisition
• Supported industrial protocols: IEC 61850, DNP3, IEC 870-5-103/104, Modbus, PROCOME
• Network redundancy: PRP, HSR or link-fail tolerance
• MSV capture per IEC 61850-9-2 / IEC 61869-9
• Synchronization: SNTP, IEEE 1588 v2 (PTP), IRIG-B, PPS
• Automation and logic: IEC 61131-3
• Cybersecurity: IEC 62351, IEC 62443, IEEE 1686; RBAC; syslog; HTTPS/SFTP/SSH; firewall; certificate management
• Configuration tool: pacFactory
• Available media: images, MP4 video, technical datasheet (PDF)
• Brand: Ingeteam