Schneider Electric Easergy MiCOM P143 Numerical Feeder Management Protection Relay

Schneider Electric Easergy MiCOM P143 Numerical Feeder Management Protection Relay is designed for complete feeder protection, control and monitoring in medium-voltage power distribution systems. It combines overcurrent and earth fault protection with integrated auto-reclose and check synchronism functions, making it suitable for feeder applications where reliable fault clearance and safe restoration of supply are required.

The MiCOM P143 is intended for utilities and industrial facilities that need more than standard feeder protection. In addition to protecting feeder circuits, it helps improve network availability by automatically restoring supply after temporary faults and verifying synchronism before reconnecting circuits. This combination reduces unnecessary outages and supports stable system operation.

The relay also includes advanced communication and automation features for easy integration into modern substations. With IEC 61850 communication, programmable scheme logic, Ethernet redundancy and enhanced cybersecurity, the MiCOM P143 provides a practical solution for both new installations and retrofit projects.

Specifications

• Manufacturer: Schneider Electric
• Product Family: Easergy MiCOM
• Model: MiCOM P143
• Relay Type: Numerical Feeder Management Protection Relay
• Protection Application: Feeder protection and management
• Suitable For: Distribution feeders, utility substations and industrial power systems
• Overcurrent Protection: Yes
• Earth Fault Protection: Yes
• Feeder Management: Yes
• Integrated Auto-Reclose: Yes
• Check Synchronism: Yes
• Protection Functions: Protection, control and monitoring
• Programmable Scheme Logic: Supported
• Communication Interfaces: Serial and Ethernet
• Communication Protocols: IEC 61850 Edition 1 and Edition 2
• Ethernet Redundancy: PRP and HSR
• Dual IP Address: Supported
• IRIG-B Time Synchronization: Supported
• Cybersecurity: IEC 62351 compliant
• Role-Based Access Control: Supported
• Human Machine Interface: Multi-language HMI
• Mounting Options: Standard 4U case in 40TE, 60TE or 80TE widths
• Warranty: 2 years standard

Features

• Numerical feeder management relay with integrated auto-reclose and check synchronism.
• Provides overcurrent and earth fault protection for feeder circuits.
• Combines protection, control, monitoring and automation in one device.
• Auto-reclose function helps restore supply after temporary faults.
• Check synchronism function supports safe reconnection of feeder circuits.
• Programmable scheme logic allows customised protection schemes.
• Supports IEC 61850 communication for substation automation.
• Ethernet redundancy improves communication reliability.
• IEC 62351 cybersecurity features help secure network communication.
• Easy integration with SCADA and industrial automation systems.

Applications

• Distribution feeder protection
• Overhead line protection
• Utility substations
• Industrial power distribution
• Medium-voltage feeder protection
• Feeder automation systems
• SCADA-integrated substations
• Electrical infrastructure projects

Schneider Electric Easergy MiCOM P143 Numerical Feeder Management Protection Relay combines dependable feeder protection with integrated auto-reclose, check synchronism and modern communication features, making it well suited for distribution networks that require reliable protection and efficient system control.