Siemens SIPROTEC protection relays provide advanced monitoring and control for electrical power systems across all voltage levels. This versatile product family integrates high-speed fault detection with robust cybersecurity to ensure grid stability and asset safety.

Key Features

• Modular Hardware Design: SIPROTEC 5 units use pluggable modules to expand I/O, communication ports, and LEDs as needed.
• Integrated Cybersecurity: Includes Role-Based Access Control (RBAC), signed firmware, and encrypted communication to prevent unauthorised access.
• Multi-Protocol Support: Native compatibility with IEC 61850 (Edition 1 & 2), PROFINET, Modbus TCP, and DNP3.
• High-Speed Processing: Capable of sub-cycle tripping (under 10ms for distance protection) to minimize equipment stress.
• SIPROTEC DigitalTwin: A virtual cloud replica allows for logic testing and configuration validation without physical hardware.
• Extensive Fault Recording: Captures high-resolution oscillographic data and event logs for post-fault analysis.

Key Benefits

• Reduced Footprint: Modular units combine protection, control, and measurement into one device, saving panel space.
• Future-Proofing: Easily upgrade or add communication protocols via plug-in modules without replacing the entire relay.
• Increased Safety: Advanced arc protection modules detect light and current surges to trip within milliseconds, protecting personnel.
• Operational Efficiency: The DIGSI 5 software platform streamlines engineering, commissioning, and maintenance through a unified interface.
• Lower Life-Cycle Costs: High reliability and long service intervals reduce the Total Cost of Ownership (TCO) compared to electromechanical or early digital relays.
• Enhanced Reliability: Robust hardware design handles extreme temperatures, electromagnetic interference (EMI), and seismic vibrations.

Siemens Reyrolle protection relays offer a reliable and cost-effective solution specifically designed for the distribution and industrial power markets. With a legacy spanning over a century, these relays combine traditional durability with modern digital functionality to ensure simplified installation and dependable performance.

Key Features

• Intuitive Interface: Large graphical displays and tactile push-buttons simplify local operation and status monitoring.
• Compact Design: Uniform dimensions across the range allow for easy retrofitting and reduced panel space requirements.
• Universal Power Supply: Wide-range power inputs reduce the number of spare parts needed in inventory.
• Reydisp Software Suite: A user-friendly, free-of-charge tool for configuration, setting, and fault record analysis.
• Cybersecurity Layers: Modern series like the Reyrolle 5 include password protection and traceable change logs.
• Pluggable Terminals: Facilitates fast “hot-swapping” and easier wiring during installation and maintenance

Key Benefits

• Cost-Effectiveness: Provides essential protection functions at a lower price point than the high-end SIPROTEC modular series.
• Simplified Engineering: The straightforward logic and software mean faster commissioning and less training time for technicians.
• Proven Durability: Built on a legacy of over 100 years, these relays are highly resistant to harsh electrical environments.
• High Availability: Features like internal self-monitoring ensure the relay is always ready to trip, reducing the risk of catastrophic failure.
• Ease of Replacement: Standardised cut-outs and wiring layouts make it the industry choice for replacing aging electromechanical relays.