Feeder Protection System

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The F35, a member of the UR Family of protection relays, provides cost-effective feeder protection, control and metering for up to five feeders with busbar voltage measurement, or six feeders without busbar voltage in one integrated package. Use the F35 as a stand-alone device or as a component of an automated substation control system.

 

Key Benefits :

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• Cost-effective and flexible protection and control device for distribution feeder applications

• Advanced IEC 61850 Ed. 1 and Ed. 2 certified implementation, complete settings via SCL files and IEC 61850-9-2 process bus solution ensures interoperability, device managing optimization and reduced cost of ownership

• Routable GOOSE (R-GOOSE) enables GOOSE messages going beyond the substation, which enables wide area protection and control applications

• High-end fault and disturbance recording, including internal relay operating signals

• Robust network security enabling Critical Infrastructure Protection through user command logging, and dual permission access control

• Simplified system integration with communications supporting serial and Ethernet interfaces and multiple protocols

• Reduced relay-to-relay wiring and associated installation costs through high-speed inter-relay communications

• Supports latest edition of waveform capture (COMTRADE 2013) simplifying fault records management

• Application flexibility with multiple I/O options including high density I/O, programmable logic, modularity, and specific customization

• An integrated large, full color display, provides real-time visualization and control of the protected bay, via a bay mimic as well as annunciator functionality and graphical visualization of phasors

 

Applications

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• Primary protection and control for multiple distribution feeders

• Distribution load shedding schemes based on voltage and frequency elements

• Busblocking/interlocking schemes

• Throwover schemes (bus transfer scheme applications)

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

 

Protection & Control

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Key Features:

• Instantaneous and time phase overcurrent protection

• Thermal overload, instantaneous and time ground/neutral overcurrent protection, wattmetric ground fault directional

• Neutral and auxiliary overvoltage

• Phase and auxiliary undervoltage

• Underfrequency

• Four-shot automatic reclosers for up to six breakers

• Built-in selector switch

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Protection & Control

The F35 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 F35 provides cost-effective solutions and features high performance protection, expandable I/O options, integrated monitoring and metering, high-speed communications, and extensive programming and configuration capabilities. The F35 can be configured to protect up to six feeders or protect up to five feeders when bus voltage measurement is required. It also provides fast and deterministic execution of programmable logic necessary for substation automation applications. Graphical programming tools (Viewpoint Engineer), supported by a library of logic components, make the F35 simple to use and configure.

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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 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.

The F35 has a wide range of protection elements that have many years of proven field experience.

 

Monitoring & Metering

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Key Features

• Metering - current, voltage, power, energy, frequency and harmonics

• Oscillography – analog and digital parameters at 64 samples/cycle

• Event Recorder - 1024 time tagged events with 0.5ms scan of digital inputs

• Data Logger - 16 channels with sampling rate up to 1 sample / cycle

• Setting for security audit trails for tracking changes to F35 configurations

 

Monitoring & Diagnostics

The F35 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 F35 is the single point for protection, control, metering, and monitoring in one integrated device that can easily be connected directly into DCS or SCADA monitoring and control systems like Viewpoint Monitoring as shown.

 

Advanced Automation

The F35 incorporates advanced automation features including powerful FlexLogic™ programmable logic, communication, and SCADA capabilities that far surpass what is found in the average line relay. The F35 integrates seamlessly with other UR relays for complete system protection, including unit and auxiliary transformers, and balance of plant protection.

 

The F35 is the single point for protection, control, metering, and monitoring in one integrated device that can easily be connected directly into DCS or SCADA monitoring and control systems like Viewpoint Monitoring as shown.

 

Communications

 

Key Features:

• Complete IEC 61850 Process Bus solution providing resource optimization and minimizing total P & C life cycle costs

• Three independent 100Mbps Ethernet ports enable purpose specific LAN support that eliminates latency effect of heavy traffic protocols on mission critical communication services

• Embedded IEEE 1588 time synch protocol support eliminates dedicated IRIG-B wiring requirements for IEDs

• Direct I/O secures high-speed exchange of binary data between URs

• Increase network availability by reducing failover time to zero through IEC62439-3 "PRP" support

 

Advanced Communications

The F35 provides advanced communications technologies for remote data and engineering access, making it the easiest and most flexible feeder protection relay to use and integrate into new and existing infrastructures. Direct support for fiber optic Ethernet provides high-bandwidth communications allowing for low-latency controls and high-speed file transfers of relay fault and event record information. The available three independent and redundant Ethernet options provide the means to create fault tolerant communication architectures in an easy, cost-effective manner.

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The F35 supports the most popular industry standard protocols enabling easy, direct integration into DCS and SCADA systems.

• IEC 61850 Ed. 1/Ed. 2 with 61850-9-2 (Process Bus) and 61850-90-5 (synchrophasors) support

• DNP 3.0 (serial & TCP/IP)

• Ethernet Global Data (EGD)

• IEC 60870-5-103 and IEC 60870-5-104

• Modbus RTU, Modbus TCP/IP

• HTTP, TFTP, SFTP and MMS file transfer

• Redundant SNTP and IEEE 1588 for time synchronization

• PRP as per IEC 62439-3

• Supports Routable GOOSE (R-GOOSE)

 

UR Switch Module

 

In addition to providing high-speed connectivity directly to your Universal Relay, the UR Switch Module provides an additional 4 fiber Ethernet ports, for connection to other relays in the system as well as upstream connectivity. It also provides 2 RJ45 copper Ethernet ports which can be used to connect local devices such as PCs, meters, or virtually anything else in the system.

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The UR Switch Module provides a simple way to add fully-managed Ethernet networking to your relays and devices without the need for additional hardware or a dedicated communications cabinet.

The UR Switch Module includes all of the management and features that come with all MultiLink managed switches, and can be easily integrated into a network that has other Ethernet switches.

When used in a ring topology with other UR Switch Modules or MultiLink Switches, the UR Switch Module can be configured to use MultiLink’s Smart RSTP feature to provide industry-leading network recovery for ring topologies, at a speed of less than 5ms per switch. 

Interoperability with Embedded IEC 61850

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Use the D30 with integrated IEC 61850 to lower costs associated with generator protection, control and automation. GE’s leadership in IEC 61850 comes from thousands of installed devices and follows on years of development experience with UCA 2.0.

 

The F35’s 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 Universal Relay applications, including protection functions, FlexLogic, metering and communications. 

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Software & Security

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Cyber Security - CyberSentry™ UR (FW v7.4xx)

CyberSentry enables UR devices to deliver full cyber security features that help customers to comply with NERC CIP and NITIR 7628 cyber security requirements through supporting the following core features:

 

Password Complexity

Supporting up to 20 alpha- numeric or special characters, UR passwords exceed NERC CIP requirements for password complexity. Individual passwords per role are available.

 

AAA Server Support (Radius)

Enables integration with centrally managed authentication and accounting of all user activities and uses modern industry best practices and standards that meet and exceed NERC CIP requirements for authentication and password management.

 

Role Based Access Control (RBAC)

Efficiently administrate users and roles within UR devices. The new and advanced access functions allow users to configure up to five roles for up to eight configurable users with independent passwords. The standard “Remote Authentication Dial In User Service” (Radius) is used for authentication.

 

Event Recorder (Syslog for SEM)

Capture all cyber security related events within a SOE element (login, logout, invalid password attempts, remote/local access, user in session, settings change, FW update, etc), and then serve and classify data by security level using standard Syslog data format. This enables UR devices integration with established SEM (Security Event Management) systems.

 

EnerVista™ Software

The EnerVista™ suite is an industry-leading set of software programs that simplifies every aspect of using the F35 relay. The EnerVista™ suite provides all the tools to monitor the status of the protected asset, maintain the relay, and integrate information measured by the F35 into DCS or SCADA monitoring systems. Convenient COMTRADE and Sequence of Events viewers are an integral part of the UR setup software included with every UR relay, to carry out postmortem event analysis and ensure proper protection system operation.