Protects the main power distribution point (busbar) against short circuits. It isolates only the faulty section, ensuring the rest of the system continues to operate smoothly.
Key Features
Feature Category
Description
Speed & Reliability
Trips a faulty section in less than 10 milliseconds, minimizing damage and maintaining system stability.
Flexibility
Supports a wide range of system layouts, including single busbars, breaker-and-a-half schemes, and ring busbars.
Cybersecurity
Includes role-based access control and event logging to protect critical infrastructure from digital threats.
Durability
Features conformal coating on circuit boards, ensuring reliable operation even in harsh environmental conditions.
Recommended Alternatives (Same Family)
Model
Description
SIPROTEC 7SD87
Line differential protection for short to medium-length lines
SIPROTEC 7SL87
Combined differential and distance protection for lines and cables
