Integrating IEC 61850 at TVA Bradley 500kV Substation - RuggedCom

Integrating IEC 61850 at TVA Bradley 500kV Substationfor Protection, SCADA and Enterprise Applications.TVA has embarked on a program to dramatically reduce thecost of building, refurbishing, operating and maintainingtransmission substations. At the same time, the project hopedto advance protection, control, monitoring and automationcapabilities within it's transmission system. To date, the Bradley500kV Substation includes 34 Intelligent Electronic Devicesfrom five manufacturers, selectively connected to redundantfiber optic networks.Present project scope includes SCADA support, fourdistribution protection schemes, CB condition monitoring,transformer monitoring and a publish/subscribe server formultiple department access to data and functionality.Project Application Objectives: Open system Interoperability between IED's Capable functionality Performance time Secure overall system Flexible management/operation Economically viable solution Common technology infrastructure Accommodate multiple vendor IED's Reusable practices Effective data management system Reduced wiring, installation costs Local and remote downloads to IED's Improved O&M from remote and local System health/status monitoring Status communications between IED'sProject Output:A) Universal construction - new technology andprocess allowed for pre-wiring, pre-configured assemblytechniques. Asset locations can now be standardized withtypical substation control house space needs reduced inhalf. Other benefits include wire reduction, standardizedconstruction, shorter construction cycles, reducedengineering and labor requirements all whilemaintaining quality.B) Protection, Control, Data Acquisition and Automation -The substation Ethernet LAN and IEC 61850 standardprovided an open, utility-centric communicationsenvironment supporting capable and timely, secure andflexible information transfers.C) Distributed Applications - TVA can now leveragepeer-to-peer Generic Object Oriented Substation Events(GOOSE) by partitioning certain applications intocooperative modules and distributing them among thedifferent IED's.D) Applications: SCADA Protection Selective data collection, reporting and logging Synchrophasor measurements Transformer monitoring Time-tagged, time-correlated, spooled event andpower system data collection Integrated , automated control of CB's, LTC's,cap banks and voltage regulators. Power waveform analysis Scenario-response capabilities Substation HMIE) Network Based O&M Practice-TVA can now betterisolate and diagnose problems remotely, better allowingwork crews to be better prepared. O&M procedures cannow be aligned with network capabilitiesF) Testing methodology - With new network technologiesand increased system capabilities a new efficient testmethodology was developed to ensure proper systemoperation and functionality. Through the use of a test casesprocess, the communications, protection, control andautomation schemes were confirmed.G) Reusable Practice - It is goal of the project to produce thefoundation of a new substation practice, oriented aroundthe IEC 61850 communications standard, complementarytechnologies and practices.While the cost of refurbishment of primary equipment(breakers, transformers, LTC's, etc) at existing substationswill remain expensive, there may be compelling reasons/advantages to the wholesale refurbishment of the secondarysystem (monitors, relays, RTU's, controllers, etc) with thenew IEC 61850 standardSummary:The IEC 61850 communications standard provides the meansto integrate communications, information and applications intoa coherent, flexible and very powerful framework for thesubstation secondary system.

The TVA Bradley IEC 61850 TeamTennessee Valley Authority (TVA) is the nation’s largest public power company, with 33,000 megawatts of dependablegenerating capacity. Through 158 locally owned distributors, TVA provides power to nearly 8.5 million residents ofthe Tennessee Valley. For more than seven decades TVA has improved the quality of life in the Tennessee Valley. TVAtouches millions of lives through a commitment to excellence and value in three key areas: Energy, EnvironmentalStewardship, and Economic Development.ABB's world-class protection and control solutions are anintelligent investment in every step you take for safeguardingreliable and profitable power transmission and distribution.This combined with our long experience in the field and fullscope of services and support makes ABB a leader and pioneerin Substation Automation and Protection solutions.AREVA's T&D division designs, manufactures and suppliesa complete range of equipment, systems and services for allstages in the transfer of electricity, from the generator to thelarge end-user. Our substation automation, protection andmeasurement solutions are field-proven and successfullyimplemented around the world. For more information, pleasevisit us at our IEEE Booth #1123 or at www.areva-td.com.GE Multilin is the first and the only vendor having IEC61850protocol across the entire spectrum of protective relayingapplications from Generator Protection, Line Protection to Motorprotection IEDs. The embedded IEC61850 protocol across theUR, URPlus and the 650 family of solutions requires noadditional protocol converters. Built on our strong leadership inUCA 2.0 implementation, GE today has projects in operationsand in execution spanning the globe using IEC61850.Substation hardened Ethernet networking devices forelectrically harsh and climatically demanding environments.Ethernet switches, routers, serial servers, media converters.Exceeds IEC 61850-3 EMI Immunity, meets IEEE 1613 Class 2error free performance, -40 o C to +85 o C operating temperature,integrated dual redundant power supplies (no fans),