Multilin F650 Cost effective protection, automation and control of distribution feeders-Shanxi Runsheng

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Multilin F650 Cost effective protection, automation and control of distribution feeders

Date: Sept 24, 2024Views:

　　The Multilin™ F650 has been designed for the protection, control and automation of feeders or relatedapplications. The Multilin F650 provides high speed protection and control for feeder management andbay 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.

　　Designed with advanced communications options and detailed monitoring capabilities, the Multilin F650 provides advanced functionality, including high-performance protection, extensive control functions and flexible configuration capabilities. The Multilin F650 can also be used for a variety of applications other than feeder protection and control.

　　Key Benefits

　　• Comprehensive and flexible protection and control device for feeder applications

　　• Increased system uptime and improved system 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 (configuration of two different SNTP masters), 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 60870-5-103/104, IEC 62439/PRP/HSR,IEEE 802.1D/RSTP

　　• Proven interoperability and KEMA 61850 Edition 2 certified

　　Applications

　　• Primary or back-up protection and control for feeders on solidly grounded, high impedance grounded or resonant (Peterson Coil) 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

　　• Distributed Generation (DG) interconnect protection, including active and passive anti-islanding

　　Protection & Control

　　• Time, instantaneous & directional phase, neutral,ground and sensitive ground overcurrent

　　• 2nd Harmonic restraint

　　• CT Supervision

　　• Manual close with cold load pick up 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

　　• Trip circuit supervision, breaker control and breaker failure

　　• Frequency protection (rate of change and six stages of under and over frequency)

　　• Broken conductor and locked rotor

　　• Programmable digital inputs and outputs

　　• 6 Setting Groups

　　Monitoring & Metering

　　• 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

　　EnerVista Software

　　• Simplified setup, configuration and commissioning

　　• Strong document archive and management system

　　• Simplified full featured monitoring and data recording

　　• Seamless integration toolkit

　　Protection and Control

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

　　Overcurrent Protection

　　Instantaneous and time overcurrent functions are available for phase, neutral, ground/sensitive ground and negative sequence currents. A variety of time curves are provided including

　　IEEE/ANSI®, IEC A/B/C/long time inverse/short time inverse, GE IAC, I2t, definite time, rectifier curve and four user-programmable curves.

　　Directional supervision is available for phase, neutral, ground and sensitive ground currents.

　　The neutral/ground directional elements

　　can be programmed to work under zerosequence voltage, ground sensitive current or dual polarization.

　　Over/Under Voltage Protection

　　The F650 includes the following voltage elements:

　　• Phase undervoltage/overvoltage elements (each element has three individual phase undervoltage/overvoltage components)

　　• Auxiliary undervoltage/overvoltageelement

　　• Neutral overvoltage element

　　Following are some of the key applications where voltage elements can be used:

　　• Source transfer schemes

　　• Load shedding schemes

　　• Back up capacitor bank protection and control

　　• Backup motor protection to prevent automatic restart

　　Over/Under Frequency Protection

　　The F650 offer six stages of overfrequency and underfrequency elements to improve network (grid) stability using voltage or frequency based loadshedding techniques. It also allows to

　　provide back up protection and trip breakers directly when protecting feeders and other frequency sensitive power equipment.

　　Frequency Rate of Change Protection

　　Frequency rate of change (df/dt) elements included in the F650 provide protection against system disturbances through load shedding.

　　Wattmetric Zero-sequence Directional

　　Applications include ground fault protection in solidly grounded transmission networks, grounded/ungrounded/resistor-grounded/resonant-grounded distribution networks. The wattmetric zero-sequence directional element responds to power derived from zero-sequence voltage and current in a direction specified by the element characteristic angle. The angle

　　can be set within all four quadrants and the power can be active or reactive. Therefore, the element may be used to sense either forward or reverse ground faults in either inductive,

　　capacitive or resistive networks. The inverse time characteristic allows time coordination of elements across the network.

f650_gea-12818b.pdf

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