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g imagination at work ã The most flexible protection and control device for distribution feeder applications ã Unique and secure downed conductor detection, backed by many years of field experience ã Flexible load encroachment allows secure operation during heavy load conditions ã Voltage and frequency elements provide load shedding & transfer schemes for increased system uptime and stability ã Application flexibility with multiple I/O options and programmable logic (FlexLogic™) ã P
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  g imagination at work ã The most flexible protection and control device for distribution feeder applicationsã Unique and secure downed conductor detection, backed by many years of field experienceã Flexible load encroachment allows secure operation during heavy load conditionsã Voltage and frequency elements provide load shedding & transfer schemes for increased system uptime and stabilityã Application flexibility with multiple I/O options and programmable logic (FlexLogic™)ã Phasor Measurement Unit (synchrophasor) according to IEEE ®  C37.118 (2011) and IEC ®  61850-90-5 support ã Three independent fiber or copper Ethernet ports for simultaneous/ dedicated network connections with advanced 1 microsecond time synchronization via LAN with IEEE 1588 support ã Reduced relay-to-relay wiring and associated installation costs through high-speed inter-relay communicationsã Embedded IEC 61850 protocolã Increase network availability by reducing failover time to zero through IEC 62439-3 “PRP” supportã CyberSentry™ provides high-end cyber security aligned to industry standards and services (NERC ®  CIP, AAA, Radius, RBAC, Syslog) ã Advanced fault and disturbance recording, including internal relay operating signals, eliminating the need for redundant recording devicesã Complete IEC 61850 Process Bus solution provides resource optimization and minimizes total P&C life cycle costs KEY BENEFITS ã Primary protection and control for feeders on solidly, impedance or resonant (Petersen coil) grounded systemsã Busblocking/interlocking schemesã Distribution load shedding schemes based on voltage and frequency elementsã High-speed fault detection for arc flash mitigationã Throw over schemes (bus transfer scheme applications)ã Backup protection for transmission lines, feeders and transformersã Distributed Generation (DG) interconnect protection APPLICATIONS Protection and Control ã High-impedance fault detection (downed conductor detection)ã Directional, time, instantaneous, phase, neutral, negative sequence and ground overcurrent protection, plus restricted ground faultã Load encroachment supervisionã Wattmetric ground fault detectionã Thermal overload, incipient cable fault detection and broken conductorã Four-shot autorecloser with synchronism checkã Breaker control and breaker failure ã Abnormal frequency protection (rate of change, under/over frequency) Communications ã Networking interfaces: up to three Ethernet ports 100Mb fiber or copper, RS485, RS232, RS422, G.703, IEEE C37.94ã Multiple protocols: IEC 61850, DNP 3.0 and Modbus ®  serial/TCP, IEEE 1588, IEC 60870-5-104 and 103, PRP, SNTP, HTTP, TFTP, EGDã Direct I/O: secure, high-speed exchange of data between URs for DG, distribution automation applications IEC 61850 Process Bus Interface ã Robust communications with up to 8 HardFiber Bricksã Redundant architecture for dependability and security Monitoring and Metering ã Metering: current, voltage, power, energy, frequency and harmonicsã P & M class synchrophasors of voltage, current and sequence components: 1 to 120 frames/secã Advanced recording capabilities deliver a 1024 event recorder, configurable and extended waveform capture and data logger ã Setting for security audit trails for tracking changes to F60 configurations EnerVista™ Software ã Graphical Logic Designer and Logic Monitor to simplify designing and testing procedures via EnerVista UR Engineerã  Service and update notification toolset ensures device documents and software are up-to-date via EnerVista Launchpad ã EnerVista Integrator providing easy integration of data in the F60 into new or existing monitoring and control systems FEATURES F60 FEEDER PROTECTION SYSTEM Advanced Protection, Control and Automation for Distribution Feeders Multilin™  222 F60   Feeder Protection System    D    i   s   t   r    i    b   u   t    i   o   n   F   e   e    d   e   r   P   r   o   t   e   c   t    i   o   n GEDigitalEnergy.com Protection and Control The F60 feeder protection system provides feeder protection, control, monitoring and metering in an integrated, economical, and compact package. As part of the Universal Relay (UR) family, the F60 features high-performance protection, expandable I/O options, integrated monitoring and metering, high-speed communications, and extensive programming and configuration capabilities. The F60 incorporates a unique and matured algorithm to detect high-impedance faults, such as downed conductor detection. It also provides fast and deterministic execution of programmable logic, which is necessary for substation automation applications. Graphical programming tools (Viewpoint Engineer), supported by a library of logic components, make the F60 simple to use and configure.The F60 has a wide range of protection elements that have many years of proven field experience. Protection and control features include: Downed Conductor (Hi-Z) Detection Fires, injuries, and even fatalities may be caused by a live downed conductor. Unfortunately, these high risk incidences often go undetected by conventional protective relays. 5250P 24 2 2 4 42 42 2 42 2 26433334224 50G87G50_251G51_279(4) CLOSE TRIP 50BF 51P/V 67P 67_2 32    49 50N 51N  67N/G  50NBF 81U81O27P59P59N59X 59_227X25 Monitoring F60  Feeder Protection System TransducerInputs METERING   FlexElement™ 2 Functional Block Diagram The Hi-Z element in the F60, unique to Multilin, provides reliable detection of faults caused by downed conductors. Sophisticated algorithms developed over the past 20 years, detect downed conductors, tree branch contacts, and insulation fault in underground cables. This unique, field-proven algorithm incorporates artificial intelligence to maximize dependability. Key benefits of Hi-Z detection in the F60:ã Reliable detection of faults caused by downed conductors ã Fast response to hazardous situations ã Dependable and secure operation using artificial intelligence ã Detection of arcing faults ã Easy integration by the addition of a Hi-Z module to a new or existing F60 relay Directional Overcurrent Protection The F60 also has built-in standard IEEE, IEC, IAC and FlexCurves™ overcurrent characteristics (TOC), most commonly used for primary and backup protection in various protective zones. It has phase The F60 offers an integrated protection, control, metering and monitoring package that can directly connect into DCS or SCADA monitoring control systems, such as Viewpoint Monitoring. ANSI Device Numbers & Functions F60 - Protection, Metering, Monitoring and Control I   I I DEVICENUMBER 25 (2)27P27X3250BF/50BNF(2)50DD50G (2)50N (2)50P (2)50_2 (2)51G (2)51N (2)51N (2)51P (2)SynchrocheckPhase UndervoltageAuxiliary UndervoltageSensitive Directional PowerBreaker FailureDisturbance DetectorGround Instantaneous OvercurrentNeutral Instantaneous OvercurrentPhase Instantaneous OvercurrentNegative Sequence InstantaneousOvercurrentGround Time OvercurrentNeutral Time OvercurrentPhase Time Overcurrent  FUNCTION   51_2 (2)5259N59P59X59_267N (2)67P (2)67_2 (2)7981O (4)81U (6)87G(RFG)Negative Sequence Time OvercurrentAC Circuit BreakerNeutral OvervoltagePhase OvervoltageAuxiliary OvervoltageNegative Sequence OvervoltageNeutral Directional OvercurrentPhase DirectionalNegative Sequence DirectionalOvercurrentAutomatic RecloserOverfrequencyUnderfrequencyRestricted Ground Fault   333 F60   Feeder Protection System    D    i   s   t   r    i    b   u   t    i   o   n   F   e   e    d   e   r   P   r   o   t   e   c   t    i   o   n GEDigitalEnergy.com For neutral directional sensing, the residual current of the phase CTs is used as the operating current. For current polarization, a residual CT is used to measure zero-sequence current. For voltage polarization, the calculated or measured zero-sequence voltage can be used. The maximum torque angle is programmable. Two enhanced dual polarization modes use both current and voltage signals to determine polarity. “Dual-V” polarization gives priority to polarity determined based on voltage while “Dual-I” polarization gives priority to polarity determined based on current. Load Encroachment The load encroachment function in the F60 provides the capability to manage load growth in feeders. The load encroachment element can be set for the feeder’s expected maximum load, reducing the likelihood of false tripping for load conditions while maintaining dependability to trip for legitimate faults.It allows the phase overcurrent elements to be set to see end-of-line phase faults in heavily loaded feeder applications. Over/Under Voltage Protection The F60 includes the following voltage elements:ã Up to 2 phase undervoltage and 3 phase overvoltage elementsã 1 auxiliary under/over voltage elementã 1 neutral overvoltage elementIOC elements with separate outputs for each phase. Each TOC element has the following programmable characteristics:ã Pickup current level for trip, alarm, or control ã Choice of 17 curve shapes (including FlexCurves) and curve multipliersã Instantaneous or linear reset time characteristic to coordinate with upstream transformer damage curves and downstream reclosers and fusesã Voltage restraint to increase sensitivity The majority of distribution systems are either solidly grounded or grounded through a low impedance. Fast fault clearance is required due to the ground fault impact. The following functions are incorporated in the F60 to provide secure ground protection: ã Neutral IOC and TOC ã Ground IOC and TOCThe F60 allows the use of directional elements for supervision of ground overcurrent protection elements and provide sensitive tripping for faults in one direction. Typical application for directional overcurrent includes: ã Isolation of faulted feeders in ring bus or parallel feeder arrangements ã Prevention of back-feeding utility source fault from industrial plant generators ã Sensitive high-speed ground fault protection for transformersThe following are some of the key applications where voltage elements can be used:ã Source transfer schemesã Load shedding schemesã Backup capacitor bank protection and controlã Backup motor protection to prevent automatic restart Abnormal Frequency Protection The F60 offers over and underfrequency elements to improve network (grid) stability using voltage or frequency-based load shedding techniques. The F60 can be integrated into a communications network containing N60 network stability relays to implement wide area, intelligent load shedding schemes. It also provides backup protection when protecting feeders and other frequency-sensitive power equipment. Frequency Rate of Change Protection Frequency rate of change (df/dt) elements are included in the F60 to provide protection against system disturbances through load shedding and to provide anti-islanding protection for distributed generator interconnections. Cold Load Pickup A cold load condition can be caused by a prolonged outage of the load, by opening the circuit breaker, or by a loss of supply even if the breaker remains closed (cyclic loads like HVAC, refrigeration systems). F60 can automatically detect conditions that would lead to cold load pickup and selectively block protection elements for security during feeder energization. Wattmetric Ground Fault Protection A sensitive wattmetric zero-sequence directional function can be used on isolated or resonant (Petersen coil) grounded, low-resistance grounded and solidly grounded systems to detect ground faults. This function determines the presence and direction of ground faults by measuring the value and direction of zero-sequence power. This flexible element responds to F60-1 FIBER/COPPER CB1 CB2TCB1CB3 CB4 CB5 CB6 F60-2  Auto-transfer schemes can be implemented using programmable FlexLogic. Wiring between relays can be eliminated using peer-to-peer communication. Auto-Transfer Scheme Implementation Example  444 F60   Feeder Protection System    D    i   s   t   r    i    b   u   t    i   o   n   F   e   e    d   e   r   P   r   o   t   e   c   t    i   o   n GEDigitalEnergy.com power derived from zero-sequence voltage and current in a direction specified by the element characteristic angle. Power can be selected as active, reactive, or apparent. Therefore, the element may be used to sense either forward or reverse ground faults. Autorecloser Two autoreclose elements are provided for use with distribution lines in three-pole tripping schemes with up to two breakers. Up to four selectable recloser “shots” are possible prior to locking out. Any of the autoreclose elements can be dynamically blocked or unblocked by other elements or user logic. This way they can coordinate with the F60 protection setting groups. Synchronism Check The F60 provides four synchrocheck elements that monitor voltage difference, phase angle difference and slip frequency to ensure proper breaker closure as per user requirements. Any of the four synchrocheck elements can be dynamically blocked or unblocked by other elements or user logic. This way they can coordinate with the F60 protection setting groups. Breaker Failure and Control The F60 provides the required elements to perform two independent breaker failure functions. The F60 can provide independent breaker failure protection for both breakers on a feeder with a breaker-and-a-half or ring bus terminal. The relay also provides for the control of one or two breakers from faceplate pushbuttons, remote communications or contact inputs. A breaker position can be indicated by LEDs on the faceplate. IEC 61850 Process Bus The IEC 61850 Process Bus module is designed to interface with the Multilin HardFiber System, allowing bi-directional IEC 61850 fiber optic communications. The HardFiber System is designed to integrate seamlessly with existing UR applications, including protection functions, FlexLogic, metering and communications. The Multilin HardFiber System offers the following benefits:ã Communicates using open standard IEC 61850 messaging ã Drastically reduces P&C design, installation and testing labor by eliminating individual copper terminationsã Integrates with existing F60’s by replacing traditional CT/VT inputs with the IEC 61850 Process Bus moduleã Does not introduce new cyber security concernsVisit the HardFiber System product page on the GE Digital Energy web site for more details. Advanced Automation The F60 incorporates advanced automation features including powerful FlexLogic programmable logic, communication, and SCADA capabilities that far surpass what is found in the average feeder relay. The F60 integrates seamlessly with other UR relays for complete system protection, including the unit and auxiliary transformers, and balance of plant protection. FlexLogic FlexLogic is the powerful UR-platform programming logic engine that provides the ability to create customized protection and control schemes, minimizing the need and associated costs of auxiliary components and wiring. Using FlexLogic, the F60 can be programmed to provide the required tripping logic along with custom scheme logic for auto transfer schemes (main-tie-main), load shedding based on frequency, voltage and communication, loop restoration schemes, other remedial action schemes and dynamic setting group changes. Scalable Hardware The F60 is available with a multitude of I/O configurations to suit the most demanding application needs. The expandable modular design allows for easy configuration and future upgrades.ã Flexible, modular I/O covering a broad range of input signals and tripping schemesã Types of digital outputs include trip-rated Form-A and Solid State Relay (SSR) mechanically latching, and Form-C outputsã RTDs and DCmA inputs are available to monitor equipment parameters such as temperature and pressure Monitoring and Metering The F60 includes high accuracy metering and recording for all AC signals. Voltage, current, and power metering are built into the relay as a standard feature. Current and voltage parameters are available as total RMS magnitude, and as fundamental frequency magnitude and angle. The F60 also measures up to the 25th harmonic on voltage and current, suitable for power quality applications. Fault and Disturbance Recording The advanced disturbance and event recording features within the F60 can significantly reduce the time needed for postmortem analysis of power system events and creation of regulatory reports. Recording functions include:ã Sequence of Event (SOE) - 1024 time stamped eventsã Oscillography - 64 digital & up to 40 analog channels - Events with up to 45s lengthã Data Logger and Disturbance Recording  - 16 channels up to 1 sample/cycle/channelã Fault Reports - Powerful summary report of pre-fault and fault valuesã Extensive breaker info (continuous coil monitor, arcing current, operating time, operation counter for asset management)The very high sampling rates and large amount of storage space available for data recording in the F60 can eliminate the need for installing costly stand-alone recording equipment. Advanced Device Health Diagnostics The F60 performs comprehensive device health diagnostic tests at startup and
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