Line protection

SIPROTEC V virtualizes substation protection & control, scaling up to 60 IEDs on one server. Built on SIPROTEC 5 algorithms with IEC 61850 compliance, it simplifies operations while enhancing cybersecurity and sustainability.

The SIPROTEC 7SL82 offers compact, cost-optimized line differential and distance protection for MV/HV systems. It ensures safety with powerful functions, 3-pole tripping in 19ms, and conformal coating.

The SIPROTEC 7SX85 modular universal relay handles all protection, control, and automation tasks for 3-pole tripping. Its extensive function library ensures you pay only for the functions you apply.

SIPROTEC 7SL87: Combined differential & distance protection for lines up to 6 ends. Delivers fast 1-pole tripping (9ms), interoperability with SIPROTEC 4/5, and high availability via conformal coating.

The SIPROTEC 7SX82 universal relay covers most protection, control, and automation tasks in distribution grids. Pay only for what you apply, reducing device variance and optimizing investment and operating costs.

SIPROTEC 7SL86 combines differential and distance protection for lines and cables up to 6 ends. Ensure high availability with 9ms tripping, flexible I/O, and conformal coating for reliability in extreme environments.

The SIPROTEC 7SD87 provides selective differential protection for lines and cables with up to 6 ends. It delivers 1- and 3-pole tripping in 9ms and features conformal coating for highest availability in extreme conditions.

The SIPROTEC 7SX85 modular universal relay handles all protection, control, and automation tasks for 3-pole tripping. Its extensive function library ensures you pay only for the functions you apply.

SIPROTEC 7SD82 provides compact, cost-optimized line differential protection for medium- and high-voltage systems. It ensures safety with 3-pole tripping in 19 ms and high availability via conformal coating.

The SIPROTEC 7SX82 universal relay covers most protection, control, and automation tasks in distribution grids. Pay only for what you apply, reducing device variance and optimizing investment and operating costs.

The modular SIPROTEC 7SD86 provides line differential protection for medium and high-voltage lines. It ensures fast 3-pole tripping (9 ms) and high availability with standard conformal coating.

The Reyrolle 7SR18 is a numeric three-phase differential relay that detects in-zone phase and earth faults. It protects overhead lines and cables with integral back-up overcurrent/earth fault protection.

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The SIPROTEC 7SX85 modular universal relay handles all protection, control, and automation tasks for 3-pole tripping. Its extensive function library ensures you pay only for the functions you apply.

The SIPROTEC 7SX82 universal relay covers most protection, control, and automation tasks in distribution grids. Pay only for what you apply, reducing device variance and optimizing investment and operating costs.

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The modular SIPROTEC 7SA87 provides distance protection for high-voltage lines, enabling future-oriented solutions for protection, control, and automation with 1-pole or 3-pole tripping in a minimum of 9 ms.

The SIPROTEC 7SX85 modular universal relay handles all protection, control, and automation tasks for 3-pole tripping. Its extensive function library ensures you pay only for the functions you apply.

The SIPROTEC 7SJ86 provides modular backup overcurrent protection for line devices. Its flexible I/O and DIGSI 5 tool deliver future-proof control, while standard conformal coating ensures high availability.

The SIPROTEC 7SX85 modular universal relay handles all protection, control, and automation tasks for 3-pole tripping. Its extensive function library ensures you pay only for the functions you apply.

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