The Multilin F650 is a highly efficient and flexible feeder protection relay designed for the protection, control, and automation of feeder systems in distribution networks. It provides high-speed protection for feeder management and bay control, supporting a variety of complex system configurations. With an intuitive human-machine interface (HMI), modular construction, and advanced communication capabilities, it ensures reduced downtime, streamlined maintenance, and reliable performance in various feeder applications.

Technical Specifications

• Protection Functions:
  • Overcurrent, undervoltage, overvoltage
  • Directional, negative sequence, and phase unbalance
  • Frequency protection and load shedding
  • Arc flash protection
  • Fault location (FLR) and line differential protection
• Communication Protocols:
  • IEC® 61850 Edition 2
  • IEC 60870-5-103/104
  • IEC 62439/PRP/HSR
  • IEEE 802.1D/RSTP
  • IEEE 1588 (PTP)
  • SNTP, IRIG-B time synchronization
• Display:
  • Graphical LCD for real-time monitoring
  • Single-line diagrams for bay monitoring
  • Programmable buttons for easy navigation
• Connectivity:
  • Serial and Ethernet interfaces
  • Multiple communication protocols supported
• Construction:
  • Modular draw-out design for quick replacement
  • KEMA 61850 Edition 2 certified for interoperability
• Environmental Specifications:
  • Operating Temperature: -40°C to +85°C
  • Humidity: 5% to 95% non-condensing
  • Vibration: Designed for industrial environments
• Power Supply:
  • 24 VDC ± 20%
  • Redundant power supply option
• Time Synchronization:
  • Configurable for two different SNTP masters
  • IEEE 1588 Precision Time Protocol (PTP)