Digital Energy Protection & Control Distribution Feeder Protection
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Multilin F650
Cost effective protection, automation and control of distribution feeders

The Multilin F650 has been designed for the protection, control and automation of feeders or related applications. The Multilin F650 feeder protection relay provides high speed protection and control for feeder management and bay control applications, and comes with a large LCD and single line diagrams that can be built for bay monitoring and control for various feeder arrangements including ring-bus, double breaker or for breaker and half.

Key Benefits
  • Comprehensive and flexible protection and control device for feeder applications
  • Increased system uptime and improved stability with load shedding and transfer schemes
  • Advanced automation capabilities for customized protection and control solutions
  • Human machine interface (HMI) with graphical LCD, programmable buttons, and easy keys for selecting setting menus, and submenus
  • Reduced replacement time with modular draw-out construction
  • Reduced troubleshooting time and maintenance costs with IEEE 1588 (PTP), IRIG-B and SNTP time synchronization, event reports, waveform capture, and data logger
  • Simplified system integration with communications supporting serial and Ethernet interfaces as well as multiple protocols
  • Embedded IEC 61850 protocol (and support for edition 2), IEC 60870-5-103, IEC 62439/PRP/HSR, IEEE 802.1D/RSTP
  • Primary or back-up protection and control for feeders on solidly grounded, high impedance grounded or resonant grounded systems
  • Bus blocking/Interlocking schemes
  • High-speed fault detection for arc flash
  • Throw over schemes (bus transfer scheme applications)
  • Load shedding schemes based on voltage and frequency elements
  • Back-up protection of high voltage applications
  • Distributed Generation (DG) interconnect protection, including active and passive anti-islanding

  Key Features
  • Time, instantaneous & directional phase, neutral, ground and sensitive ground overcurrent
  • Manual close with cold load pickup control, Forward Power and Directional Power Units
  • Load encroachment supervision
  • Wattmetric ground fault detection
  • Positive and negative sequence based over/under voltage elements
  • Four-shot autorecloser with synchronism check
  • Breaker control and breaker failure
  • Abnormal frequency protection (Rate of change, under and over frequency)
  • Broken conductor and locked rotor
  • Synchrocheck - V & Hz
  • Up to 64 Programmable digital inputs and up to 16 digital outputs
  • Trip Circuit Supervision
  Protection & Control

The F650 feeder protection relay provides high speed protection and control for feeder management and bay control applications, including:

650 Block Diagram
  Key Features
  • Fault locator, fault and event recorder
  • Comprehensive breaker monitoring
  • High resolution oscillography and Data Logger, with programmable sampling rate
  • Metering: V, I, Hz, W, VA, PF
  • Demand: Ia, Ib, Ic, Ig, Isg, I2, MW, MVA
    Monitoring & Metering
    The F650 provides advanced monitoring and metering that includes:
    VT Fuse Failure
      Use the VT Fuse Failure feature to issue an alarm and/or to block voltage driven protection functions that can operate incorrectly due to an abrupt partial or total voltage loss. This loss is caused by the voltage transformers secondary circuit protection fuse failure. Different methods are used to detect the different types of VT fuse failure.
    Trip Circuit Monitoring
      F650 can be used to monitor the integrity of both the breaker trip and closing coils and circuits. The supervision inputs monitor both the battery voltage level, while the outputs monitor the continuity of the trip and/or closing circuits, by applying a small current through the circuits.
    Basic Metering
      Ia, Ib, Ic, Ig, Isg, Va, Vb, Vc and Vx signals are available locally and remotely and can be stored in the oscillography record or data logger.
    Event Recording and Oscillography
      The F650 is capable of storing 479 time-tagged events (1 ms tagging), to help with troubleshooting. The trigger point, the channels, and sampling rate of the oscillography files are user programmable features. Up to five seconds at maximum sample rate can be stored.
      Advanced Communications

    The F650 incorporates the industry-leading communication technologies making it one of the easiest and flexible feeder protection relays for use and integration into new and existing infrastructures. The F650 provides optional Parallel Redundancy Protocol (PRP), High Availability Seamless Ring (HSR) (IEC 62439-3) and also Rapid Spanning Tree Protocol (RSTP) (IEEE 802.1D) to increase network availability and reliability for critical applications.

    The F650 supports popular industry leading standard protocols enabling easy, direct integration into electrical SCADA and HMI systems. The protocols supported by the F650 include:

    • IEC 61850 Edition 2
    • DNP 3.0
    • Modbus RTU
    • Modbus TCP/IP
    • IEC 60870-5-104
    • PRP & HSR (IEC 62439-3)
    • RSTP (IEEE 802.1D)
    • IEEE 1588 (PTP) for time synchronization

    The F650 provides integration with 61850 standard edition 2. IEC 61850 allows for the seamless connection of IEDs from multiple vendors. In addition to device interoperability, these protocols are designed to control the substation via a LAN instead of through discrete wiring to an RTU.

      Example of redundant HSR and PRP Architecture

    Redundancy protocols can be used for various networking architectures including combined PRP / HSR technologies

      EnerVista Software
      The EnerVista Suite is an industry-leading set of software programs that simplifies every aspect of using the F65 relay. The EnerVista suite provides all the tools to monitor the status of your the protected asset, maintain the relay, and integrate information measured by the F650 into DCS or SCADA monitoring systems. Convenient COMTRADE and Sequence of Events viewers are an integral part of the 650 Setup software included with every F650 relay, to carry out postmortem event analysis to ensure proper protection system operation. Learn More
      Security - Enabling NERC CIP Compliance
      Access Control
    Multilin devices and relays are designed with simple but powerful security to enable reliability and compliance for virtually any project or implementation. With support for multi-level permissions and multi-factor supervisory controls, Multilin devices can help you manage the integrity of your system during commissioning, testing, implementation, and beyond. The 650 Family provides separate authentication for settings and commands to the system. In addition, as discrete authentications for local and remote access, it also provides a supervisory control factor that can lock or unlock a device for configuration changes and other modifications.
      Intrusion Detection
    Multilin’s family of protection and control products can also help enable your security perimeter and intrusion detection programs. By providing essential alarming and logging of critical events, Multilin devices can help you detect potential breaches within your system and allow you to respond quickly and effectively. Specifically, unsuccessful access attempts are logged, alarmed, and lead to potential attackers being locked out. This ensures the reliability of your system during questionable activity.control factor that can lock or unlock a device for configuration changes and other modifications.
      Auditing and Reporting
    With the Security Audit Trail reporting feature and support for Event logging of key activities such as configuration changes, Multilin devices can help ensure device and protection system integrity, and perform forensic auditing of activities and changes for compliance.