ABB RED670 Line Differential Protection Relay

Features

• Phase-Segregated Current Differential Protection: Provides high sensitivity for detecting high-resistance faults.
• Secure Phase Selection: Ensures reliable phase selection for up to five line terminals.
• Transformer Inclusion: Allows for the protection of two- or three-winding power transformers within the safeguarded zone.

The RED670 is designed for use across distribution and high voltage levels, offering protection for heavily loaded lines and multi-terminal lines. It supports one-, two-, and/or three-phase tripping requirements and provides protection for cable feeders to generator block transformers.