Schneider Electric Easergy MiCOM P444 Numerical High Performance Distance Protection Relay
Schneider Electric Easergy MiCOM P444 Numerical High Performance Distance Protection Relay is designed to provide fast, selective and dependable protection for transmission and sub-transmission power networks. It combines distance protection, control, monitoring and communication functions in a single relay, making it suitable for overhead transmission lines and underground cable systems operating at high and extra-high voltage levels.
The MiCOM P444 offers advanced multi-zone distance protection together with directional earth fault protection, backup protection and integrated fault location. It is designed to detect faults quickly while maintaining system stability during complex network conditions. Built-in auto-reclose, check synchronism and programmable scheme logic provide greater flexibility for utilities and industrial power systems.
The relay supports both conventional substations and digital substation architectures through IEC 61850 communication and process bus compatibility. Its advanced monitoring, disturbance recording and communication capabilities help improve fault analysis, simplify maintenance and support reliable operation of modern transmission networks.
Specifications
- Manufacturer: Schneider Electric
- Product Family: Easergy MiCOM
- Model: MiCOM P444
- 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: Multi-zone numerical distance protection
- Directional Earth Fault Protection: Supported
- Backup Protection: Supported
- Auto-Reclose: Supported
- Check Synchronism: Supported
- Fault Locator: Integrated
- Power Swing Detection: Supported
- Out-of-Step Protection: Supported
- Programmable Scheme Logic: Supported
- Event Recording: Supported
- Disturbance Recording: Supported
- Communication Interfaces: Serial and Ethernet
- Communication Protocols: IEC 61850, IEC 61850-9-2 Process Bus, Modbus, DNP3 and IEC 60870-5-103
- Teleprotection: InterMiCOM supported
- Ethernet Redundancy: Supported
- Cybersecurity: Advanced security features
- Mounting: Standard modular case
Features
- Numerical relay for high-performance distance protection.
- Multi-zone distance protection for transmission and sub-transmission networks.
- Fast fault detection using advanced numerical algorithms.
- Integrated fault locator helps reduce restoration time.
- Power swing detection and out-of-step protection improve system stability.
- Auto-reclose and check synchronism functions support reliable network operation.
- Supports IEC 61850 and digital substation process bus architecture.
- Programmable scheme logic allows flexible protection applications.
- InterMiCOM teleprotection enables secure relay communication.
- Comprehensive monitoring, event recording and disturbance recording simplify maintenance.
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 P444 Numerical High Performance Distance Protection Relay provides dependable transmission line protection with advanced communication, monitoring and automation features, making it suitable for modern electrical networks where fast fault clearance and reliable system operation are essential.
