SIPROTEC 5 7SJ86 Overcurrent & Feeder Protection Relay

The 7SJ86 Overcurrent & Feeder Protection relay from SIPROTEC is a modular and expandable solution designed for reliable operation in transmission grids. Featuring a flexible 4xI/4xV hardware configuration, this relay ensures precise monitoring and protection of feeders, helping substations and power utilities maintain safe and efficient grid operations.

Ideal for substation automation, the 7SJ86 Overcurrent & Feeder Protection relay supports IEC standards and offers seamless integration into modern transmission networks. Available from trusted suppliers in Mumbai, this advanced relay combines technical excellence with proven reliability, making it the preferred choice for engineers and EPC companies seeking robust protection solutions.

Features

Main function:

• Overcurrent protection (V/inverse-time overcurrent protection)

Tripping:

• 3-pole

Inputs and outputs:

3 predefined standard variants with

• 4 current transformers,
• 4 voltage transformers,
• 11 to 23 binary inputs,
• 9 to 25 binary outputs

Hardware flexibility:

• Flexibly adjustable and expandable I/O quantity structure within the scope of the SIPROTEC 5 modular system.

Housing width:

• 1/3 × 19 inches to 2/1 × 19 inches

Whether upgrading existing infrastructure or implementing new transmission projects, the SIPROTEC 5 7SJ86 Overcurrent Protection relay delivers the performance, modularity, and compliance needed for optimal grid safety.