Siemens SIPROTEC 5 7SL86 Distance Protection Relay
The Siemens SIPROTEC 7SL86 Distance Protection Relay is part of the advanced SIPROTEC 5 family, offering a comprehensive solution for line differential and distance protection in medium- and high-voltage networks. With 4 current (I) and 4 voltage (V) inputs, expandable hardware modules, and 3-pole fast tripping, it ensures fast, selective, and secure fault detection. Supports IEC 61850 and modern digital substation communication for seamless integration. Ideal for transmission lines, substations, and industrial networks
Technical Specifications
Main function: Differential and Distance Protection
Tripping: 3-pole, minimum tripping time: 9 ms
Inputs/Outputs: 12 predefined variants with 4/4 or 8/8 current/voltage transformers, 5–31 binary inputs, 8–46 binary outputs
Hardware flexibility: Adjustable I/O structure within SIPROTEC 5 modular system
Housing width: 1/3 × 19 inches to 2/1 × 19 inches
Standard conformal coating
Application: Line protection at all voltage levels, phase-selective overhead line and cable protection, ground fault detection in isolated or arc-suppression-coil systems
Communication: Optical fiber, two-wire, and network-based communication
Integrated Phasor Measurement Unit (PMU)
Tripping: 3-pole, minimum tripping time: 9 ms
Inputs/Outputs: 12 predefined variants with 4/4 or 8/8 current/voltage transformers, 5–31 binary inputs, 8–46 binary outputs
Hardware flexibility: Adjustable I/O structure within SIPROTEC 5 modular system
Housing width: 1/3 × 19 inches to 2/1 × 19 inches
Standard conformal coating
Application: Line protection at all voltage levels, phase-selective overhead line and cable protection, ground fault detection in isolated or arc-suppression-coil systems
Communication: Optical fiber, two-wire, and network-based communication
Integrated Phasor Measurement Unit (PMU)
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