The SIPROTEC 7SJ82 Feeder Protection Relay is engineered to provide reliable overcurrent and feeder protection for modern power systems. With 4xI / 4xV measurement inputs, it ensures precise monitoring, accurate fault detection, and stable operation in substations and industrial networks. Designed for numerical protection and automation, it enhances system safety, efficiency, and long-term reliability
Technical Specifications
Compact and cost-effective overcurrent protection
High-performance protection functions
Full data security and lifecycle transparency
User-friendly design and software
High-quality engineering process with greater reliability
Advanced cybersecurity and safety
IEC 61850 Edition 1 & 2 compliant
Universal protection & control device (SIPROTEC 5 system)
Suitable for feeders and lines
Applications include short-circuit detection, ground-fault detection, backup protection for transformers/generators/lines, capacitor bank protection, PMU, load shedding, automation
Supports multiple DIGSI application templates
Functions include: directional/non-directional overcurrent, inrush detection, arc protection, frequency protection, QU protection, CB failure protection, voltage supervision, harmonic detection, pulse ground-fault method, power protection, logic editor, and more
High-performance protection functions
Full data security and lifecycle transparency
User-friendly design and software
High-quality engineering process with greater reliability
Advanced cybersecurity and safety
IEC 61850 Edition 1 & 2 compliant
Universal protection & control device (SIPROTEC 5 system)
Suitable for feeders and lines
Applications include short-circuit detection, ground-fault detection, backup protection for transformers/generators/lines, capacitor bank protection, PMU, load shedding, automation
Supports multiple DIGSI application templates
Functions include: directional/non-directional overcurrent, inrush detection, arc protection, frequency protection, QU protection, CB failure protection, voltage supervision, harmonic detection, pulse ground-fault method, power protection, logic editor, and more
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