Schneider Electric PowerLogic™ MiCOM P127 Feeder Protection Relay

Schneider Electric PowerLogic™ MiCOM P127 Feeder Protection Relay brings together feeder protection, directional fault detection, voltage supervision, and frequency monitoring for medium-voltage distribution systems. The relay supports networks that require a broader range of protection functions to maintain system stability and improve fault management.

Distribution networks continue to evolve with the addition of renewable energy sources, interconnected feeders, and changing load conditions. The MiCOM P127 helps operators manage these challenges by monitoring current, voltage, and frequency conditions while providing fast response to abnormal operating events. Directional protection functions improve selectivity and help isolate faulted sections without unnecessarily disconnecting healthy parts of the network.

The relay also provides detailed event and fault recording capabilities that support troubleshooting, maintenance planning, and network performance analysis. Its combination of protection and monitoring functions makes it suitable for utility substations, industrial facilities, renewable energy installations, and infrastructure projects.

Specifications

• Manufacturer: Schneider Electric
• Product Family: PowerLogic™ MiCOM
• Model: P127
• Relay Type: Numerical Feeder Protection Relay
• Protection Application: Feeder Protection
• Protection Functions: Overcurrent Protection, Earth Fault Protection, Directional Overcurrent Protection, Directional Earth Fault Protection, Voltage Protection and Frequency Protection
• Technology: Digital / Numerical Relay
• Event Recording: Yes
• Fault Recording: Yes
• Monitoring Functions: Current, Voltage, Frequency and Fault Analysis
• Installation: Medium Voltage Switchgear and Protection Panels
• Communication: Available depending on configuration

Features

• Overcurrent and earth fault protection.
• Directional overcurrent and directional earth fault protection.
• Voltage monitoring and protection functions.
• Frequency supervision and protection capabilities.
• Event and disturbance recording.
• Continuous feeder and network monitoring.
• Supports protection coordination in complex distribution systems.
• Suitable for utility, industrial, and renewable energy applications.

Applications

• Distribution Feeders
• Utility Substations
• Medium Voltage Switchgear
• Renewable Energy Projects
• Industrial Power Distribution Systems
• Infrastructure Networks
• Electrical Protection Panels
• Distribution Network Protection Schemes

Schneider Electric PowerLogic™ MiCOM P127 Feeder Protection Relay helps improve network reliability by combining protection, monitoring, and fault analysis functions within a compact numerical relay platform.