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Fault detection functions
Detect ground faults in compensated or isolated electrical power systems using: 3I0>, V0>, transient ground fault, cos φ, sin φ, dir. Detect intermittent ground faults with harmonic detection and admittance measurement.
Why SIPROTEC 7SD86?
SIPROTEC 7SD86 is a modular line differential protection device to protect medium and high-voltage lines with 3-pole tripping. Take advantage of a powerful solution for protection, control, automation, monitoring and power quality.
Protect power systems from faults, transformer errors and current-transformer saturation. Our SIPROTEC 7SD86 provides differential protection with an adaptive algorithm for high sensitivity and stability, clearing faults quickly and maintaining system integrity.
Key benefits
Improve reliability
Enhance operational safety with powerful protection functions. Maintain high availability in challenging environmental conditions, supported by conformal coating on electronic boards.
Simplify device and software management
Use software and devices easily with our user-friendly design. Streamline configuration and operation to reduce complexity for your team and complete daily tasks faster.
Strengthen cybersecurity
Improve your cybersecurity with features like role-based access control and authenticated network access. We adhere to NERC CIP and BDEW Whitepaper requirements to protect your critical infrastructure from threats.
Featured capabilities
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Flexible I/O and modular system
Configure flexible I/O quantity structures within the SIPROTEC 5 modular system. Choose from 12 standard variants with diverse current and voltage transformers, binary inputs and outputs for customized protection solutions.
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Communication protocols
Integrate IEC 61850 and Modbus TCP protocols. Use redundant PRP and HSR protocols for reliable data transmission.