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UR Family of Protection Relays
White Papers/Case Study
 

File NameTitlePublish DateFormat
GET-20025BWhite Paper: IEC 61850 Interoperability and Implementation05/18/2016 [720k]
This white paper outlines the interoperability of IEC 61850. Our practices, with several use-cases for interoperability within a multi-vendor environment are analyzed. The architecture/process at the device level and system level is proposed too.
GEA-31951Case Study: Top 5 Reasons to Implement Distributed Bus Protection11/18/2015 [2.2M]
This paper will discuss the evolution of bus protection, focusing on distributed bus protection schemes and five key considerations in implementing IEC 61850 process bus distributed bus protection schemes in modern power systems.
GEA-31987White Paper: Strategies for Maintaining Grid Reliability with the Multilin UR Platform10/12/2016 [967k]
Operators must have a relay lifecycle strategy to ensure device health and power system reliability. If you have an earlier generation UR, this paper guides you through a strategy and demonstrates how the UR minimizes typical device upgrade costs.
SmarterGridWhite paper: An Enterprise Information Architecture Enables a Smarter Grid06/29/2009 [291k]
To make the smart grid a reality, utilities need to leverage intelligence for smarter, faster decision making. So how do you collect, organize, distribute, integrate, secure and interpret the vast sea of information in today’s grid environment?
SIPSWhite Paper: Application Considerations in System Integrity Protection Schemes05/21/2011 [353k]
This paper describes some of the critical engineering, design, and applications of the latest technology for the implementation of System Integrity Protection Schemes (SIPS).
PilotProtCase study: Application of Digital Radio for Distribution Pilot Protection04/13/2010 [1.8M]
This paper describes basic digital radio technology and shows possible applications for distribution protection. As with other pieces of the protection system, it is important to understand the reliability and performance of digital radio.
ArcFlashCase study: Reducing Arc Flash Risk with the Application of Protective Relays06/21/2011 [1.2M]
The modern technologies utilized by microprocessor based protective relays provide the means to accelerate the extinction of the arc produced by short circuits where the air is the conducting material.
BackupProtCase Study: The Importance of Backup Protection Systems10/25/2005 [830k]
Digital protection relays are made to provide reliability, selectivity and speed to power system protection engineers. This paper focuses on local breaker failure protection, covering the basics and enhancements of BF detection.
BrokenBarCase study: Enhanced Algorithm for Motor Rotor Broken Bar Detection06/21/2011 [736k]
This paper describes an algorithm for detection of broken rotor bars based on MCSA enhanced with a set of motor conditions, collected by a protection relay to avoid a false declaration of an alarm due to rotor problems.
CTSaturationWhite Paper: CT Saturation in Industrial Applications. Analysis and Application Guidelines10/25/2005 [1.4M]
This paper shows a method to present complex relations between the CT response and the response of any given relay. Based on this graphical method one can quickly evaluate the problem and see alternative solutions.
CyclingLoadCase Study: Setting a Motor Management Relay for a Cyclic Load Application06/26/2005 [699k]
This application note shows that when the time constants are properly matched, the relay works correctly on cyclic loads. It also provides practical examples of how to set up the Multilin 469 relay.
DistBusProtCase study: Distributed Bus Protection in the Smart Substation12/16/2013 [3.2M]
This paper presents a new Distributed Bus Protection System that is not only as a protection system, but also a platform that incorporates the data from the HV equipment in an IEC 61850 process bus scheme.
IncipientCase study: Detection of Incipient Faults in Underground MV Cables06/21/2011 [1.1M]
This paper presents the operational experience of half-cycle events at a large urban utility, and details a simple and robust method for detecting incipient faults in cable and combined overhead and cable feeders.
DistanceRelayCase study: Distance Relay Fundamentals06/21/2011 [1.3M]
This paper discusses the fundamental features of the three types of distance functions and possible problems that may be encountered in their design and application.
DistSubsSGCase study: Distribution Substation Automation in Smart Grid04/12/2010 [613k]
This paper discusses an approach to substation automation that incorporates distribution automation, demand response and advanced metering infrastructures.
DistSysProtCase study: Distribution System Feeder Overcurrent Protection04/26/2010 [3.6M]
With the increasing loads, voltages and short-circuit duty of feeders, distribution overcurrent protection has become even more important today. This publication reviews present distribution practices, particularly with regard to relaying.
FaultLocatorCase Study: Fault Locator Based on Line Current Differential Relay Synchronized Measurements12/04/2010 [2.3M]
This paper presents new multiended method for locating faults on the transmission lines and incorporated into line current differential relay.
PcsystemsCase study: Protection and control systems for pulp and paper08/04/2010 [1.7M]
This paper will discuss using relay functionality to fully monitor the protection and control system, which will identify problems within the system before they manifest themselves by miss-operation.
61850deployWhite paper: Unanswered questions about IEC 6185010/25/2005 [528k]
This paper seeks to identify issues related to IEC 61850 standard deployment and to present solutions to meet industry trends and utilities' expectations.
ImpSGcommsWhite Paper: Implementing Smart Grid Communications07/02/2009 [211k]
This paper outlines the technical implementation of technologies that enable Smart Grid practices.
PSintegrateCase Study: Improvements in Power System Integrity Protection Schemes08/04/2010 [820k]
This paper outlines the need for the Power System Protection Systems (PSPS) also called System Integrity Protection Schemes (SIPS) and the resulting design requirements.
XfrmrTestingCase Study: Investing in Continuous Transformer Testing12/13/2013 [1.9M]
This paper shows that bushings and tap changers are critical as the active part in terms of the root cause of failure. Action steps are described to prevent from failure and ensure electrical power reliability.
IslLoadShedCase Study: Design & Implementation of an Islanding and Load Shed System07/18/2008 [632k]
This paper presents the design and implementation details of a control system that detects an island condition in an industrial facility and executes a multi-tier load shed based on the load-generation balance.
SGBusCaseWhite Paper: Leader or Follower, Developing the Smart Grid Business Case06/25/2008 [259k]
This paper discusses the key driving factors behind smart grid momentum, the challenges facing utilities, and suggests how utilities should think about developing their comprehensive smart grid business cases.
MotorAppsWhite Paper: Motor Protection Principles06/26/2005 [1.4M]
This paper presents main risks and solutions for an overheated motor, as any motor failure will have the following cost contributors: repair or replacement, removal, installation and loss of production.
MVDistSysCase Study: Protection and Control Redundancy Considerations in MV Distribution Systems06/22/2006 [1M]
This paper presents a case study for typically used redundant schemes and demonstrates some common implementation errors, pseudo redundancy, and illustrations of two relays providing inadequate redundancy.
ParadigmWhite Paper: A Paradigm Shift in Protection, Control and Substation Automation Strategy07/02/2009 [1.6M]
This paper presents the requirements for improved efficiency in all phases of engineering, maintenance, and operation, to support an increasing level of substation integration and protection.
Peer2PeerCase Study: Enabling Peer-to-Peer Communications10/30/2005 [834k]
This paper presents GOOSE messaging schemes to transmit data, and highlights the benefits of the three different types of GOOSE messaging systems available in the UR family of protection relays.
PhaseAngleWhite Paper: Protection of Phase Angle Regulating Transformers Using Digital Relays06/26/2005 [704k]
This paper describes the specifics of an installed Phase Angle Regulating transformer, and protection techniques using modern digital relays.
HydroGenCase Study: Split Phase Protection of Hydrogenerators 10/25/2005 [243k]
This paper describes a new method promising better sensitivity for faults on machines operated with significant inherent circulating current as compared with conventional split-phase protection.
WorkForceWhite Paper: Replenishing the Aging Work Force in the Power Industry06/21/2011 [258k]
This paper discusses the program to develop and attract the interest of the next generation of technical experts, including the respective roles of industry and academia.
IntellGridWhite Paper: Smart Grid - The Road Ahead07/02/2009 [670k]
This article presents a definition of the Smart Grid and examines the road ahead to its development and a more capable, secure and manageable energy provisioning and delivery system.
SAOpsMaintCase Study: Secure Substation Automation for Operations and Maintenance06/21/2011 [542k]
This paper outlines how utilities are implementing a mix of substation automation architectures to respond to cyber threats while providing secure access for Operations and Maintenance Systems and Personnel.
SGCommsWhite Paper: Communications for the Smart Grid07/02/2009 [2.7M]
This paper examines the architecture process of identifying the system requirements and implementation of communications pieces, as the smart grid drives into the main stream of the utility enterprise.
StimulusWhite Paper: Stimulus Funds and the Smart Grid: The First Thing We Need to Rebuild is Our Approach04/08/2010 [559k]
This paper discusses the need for a roadmap and business case to integrate new smart grid technologies, while stimulus funding represent an opportunity to fast-track smart grid rollouts.
SocialMediaWhite paper: can social media improve grid reliability?12/16/2013 [1.7M]
This paper discusses how utilities can complement their reliability indices, leveraging a GE software application that can monitor social media to provide speedy, granular data related to the distribution system.
SynchrophasorCase Study: Synchrophasor Function within Microprocessor Based Relays10/26/2005 [4.4M]
This paper discusses implementation issues related to integration of synchrophasor measurements and PMU functionalities on microprocessor-based relay platforms.
SIPSCase Study: Application Considerations in System Integrity Protection Schemes07/18/2008 [458k]
This paper describes the engineering, design, and applications of the latest technology for implementing System Integrity Protection Schemes (SIPS). The results of a survey highlight power industry trends and experiences.
DistributionWhite Paper: The Evolution of Distribution05/21/2009 [525k]
This paper highlights how traditional distribution management evolved to include advanced smart grid applications and integrated technologies driving incremental benefits in capital expenditures, operation and maintenance expenses, customer benefits.
TCMicrogridCase Study: Tieline Controls in Microgrid Applications06/21/2011 [1.5M]
This paper presents tieline controls, an important Microgrid control feature, enabling the coordinated response of several distributed energy resources, such as generation, energy storage, or controllable loads.
XInrushWhite Paper: Practical Experience in Setting Transformer Differential Inrush Restraint06/26/2005 [2M]
This paper highlights the use of the actual inrush characteristic of the protected transformer to determine optimum setpoints for the differential relay. This data should be analyzed to ensure no loss of security occurs.
XfrmrProtWhite Paper: Impact of transformers inrush currents on sensitive protection functions10/25/2005 [438k]
This paper shows how CT saturation likely causes problems for associated relays and provides pratical application guidelines regarding settings and scheme logic.
XMissLineCase Study: Transmission Line Protection Principles10/25/2005 [5.3M]
The key challenge to transmission line protection lies in reliably detecting and isolating faults. This paper highlights advantages of some typical applications of GE's Multilin line of protection relays.
UPSTechWhite Paper: The Digital World and Electrical Power Supply: A Hypersensitive Imbalance07/02/2009 [1.2M]
This paper discusses UPS technology and architecture, including systems that can provide power until the computer network has been shut down.
PMUWhite Paper: Application of Phasor Measurement Units for Disturbance Recording06/22/2006 [513k]
This paper looks at the specific application of PMUs for disturbance recording, with emphasis on wide area cross-triggering of recording PMUs during events.
WindfarmCase Study: Windfarm System Protection Using Peer-to-Peer Communications05/21/2011 [488k]
This paper reviews the overall requirements for comprehensive windfarm protection. It also focuses on the problem of feeder ground faults and presents a solution making use of peer-to-peer messaging via the IEC 61850 protocol.
WorkProcWhite Paper: Integrating Complex Work Processes Across Utility Operations04/13/2010 [725k]
This paper discusses how, in the electric power industry, Work Process Management can provide an environment to control, analyze, and audit activities across multiple departments.
SGApplCase Study: Key Smart Grid Applications02/07/2009 [924k]
This paper will explore three key Smart Grid functions (Delivery Optimization, Demand Optimization and Asset Optimization) with the strongest business case justification.

 

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