Schneider Electric Easergy MiCOM P446 Numerical High Performance Distance Protection Relay
Schneider Electric Easergy MiCOM P446 Numerical High Performance Distance Protection Relay is designed to provide fast, accurate and dependable protection for overhead transmission lines and underground cable systems. It combines advanced distance protection, monitoring, control and communication functions in a single relay, making it suitable for high-voltage and extra-high-voltage power transmission networks.
The MiCOM P446 offers a comprehensive range of protection functions with support for both quadrilateral and mho distance characteristics. It provides fast fault clearance together with power swing detection, power swing blocking, multishot auto-reclose and check synchronism, helping maintain network stability during system disturbances. Programmable Scheme Logic allows the relay to be configured for different transmission network requirements while reducing the need for external control devices.
Designed for modern substations, the MiCOM P446 supports IEC 61850 communication, Ethernet redundancy and advanced cybersecurity features. Its flexible communication options, fault recording capabilities and multi-language HMI make it suitable for both new transmission projects and upgrades of existing protection systems.
Specifications
- Manufacturer: Schneider Electric
- Product Family: Easergy MiCOM
- Model: MiCOM P446
- Relay Type: Numerical High Performance Distance Protection Relay
- Protection Application: Transmission and sub-transmission line protection
- Suitable For: High-voltage and extra-high-voltage overhead lines and underground cables
- Distance Protection: Quadrilateral and Mho characteristics
- Directional Earth Fault Protection: Supported
- Backup Protection: Supported
- Power Swing Detection: Supported
- Power Swing Blocking: Supported
- Auto-Reclose: Multishot auto-reclose
- Check Synchronism: Supported
- Programmable Scheme Logic: Supported
- Fault Locator: Integrated
- Event Recording: Supported
- Disturbance Recording: Supported
- Communication Interfaces: Serial and Ethernet
- Communication Protocols: IEC 61850 Edition 1 & 2, Modbus, DNP3 and IEC 60870-5-103
- Ethernet Redundancy: PRP and HSR
- Dual IP Address: Supported
- IRIG-B Time Synchronization: Supported
- Cybersecurity: IEC 62351 compliant
- Human Machine Interface: Multi-language HMI
- Mounting Options: 40TE, 60TE and 80TE, 4U modular case
Features
- Numerical relay for high-performance distance protection.
- Supports both quadrilateral and mho distance characteristics.
- High-speed protection for transmission and sub-transmission lines.
- Power swing detection and blocking improve network stability.
- Integrated multishot auto-reclose and check synchronism.
- Programmable Scheme Logic supports customised protection schemes.
- IEC 61850 communication enables digital substation integration.
- PRP and HSR Ethernet redundancy improve communication reliability.
- Event and disturbance recording simplify fault investigation.
- Easy integration with SCADA and substation automation systems.
Applications
- Transmission line protection
- Sub-transmission line protection
- High-voltage substations
- Extra-high-voltage transmission systems
- Overhead transmission lines
- Underground cable protection
- Utility power networks
- Digital substations
Schneider Electric Easergy MiCOM P446 Numerical High Performance Distance Protection Relay combines advanced protection, communication and automation capabilities in a compact platform, making it suitable for critical transmission systems where fast fault clearance, reliable operation and flexible network integration are essential.
