Find out for yourself why thousands of professionals participated in the live webinar series and why thousands more have viewed the online archives of the live webinar events. Click on the date links below to register for one or more of these informative webinars today.
This webinar will illustrate basic construction of Phase Angle Regulators or Phase Shifting Transformers (PAR/PST) and then proceed to the quadrature voltage phasor diagram discussions as taps are moved from neutral to different retard or advance positions of the tap changer. Applications of the PAR/PST to the power system will be shown with real-world examples of power flow simulations. The protection philosophy of using multifunction microprocessor relays and how the settings are calculated to provide complete protection of the PAR/PST will also be discussed.
Due to space and/or cost constraints, in many installations transmission lines may terminate in a transformer's high voltage winding. The absence of a high voltage side breaker presents some challenges to the protection of the line and transformer. This webinar will present an overview of the application challenges faced by protection engineers when designing line protection schemes for transformer terminated lines.
For an industry accustomed to the status quo, realizing the promise of the smart grid will be challenging. Fortunately the protection and control disciplines have responded with new platforms that provide the foundations to a smarter grid. Replacing an installed base of aging protection relays presents many challenges and viable solutions must support smart grid goals and eliminate risks associated with IED refurbishment. This webinar will examine the challenges of accelerated relay refurbishment programs and review the mitigating features expected from next generation automation systems.
Debido a restricciones de espacio y/o costo, en muchas instalaciones las líneas de transmisión pueden finalizar en un devanado de alta tensión de un transformador. La ausencia de un interruptor del lado de alta tensión plantea algunos desafíos a la protección de la línea y del transformador. Este webinar expondrá una visión general de los desafíos de la aplicación para aquellos ingenieros de protecciones que diseñen esquemas de protección para líneas que terminen en transformadores.
Introduction to Protection & Control
Presented by Elmo Price
This webinar will define power system protective relaying and its purpose. A general overview of key concepts, protective relay classifications, operating principals, operating reliability and relaying philosophy will be presented. Also provided is a brief review of terminology, ANSI C37.2 device function numbers and IEC 61850 logical nodes (device function models).
>> View webinar |  | Introduction to IEC 61850
Presented by Alejandro Schnakofsky
What is IEC 61850? Is it just another communication protocol? This webinar will explore IEC 61850, its protocols, and how it unleashes new possibilities in Substation Automation design and applications.
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Symmetrical components general overview
Presented by Michael Fleck
Symmetrical components have long been a mathematical means for protection engineers to analyze and interpret systems under abnormal conditions. In fact, protection engineers have long referred to symmetrical components as the language that defines the interconnected system. This webinar will introduce symmetrical components and investigate how positive, negative, and zero sequence quantities can be calculated from system phase quantities.
>> View webinar | | Introduction to communication protocols in a substation environment
Presented by Bryan Shannon
For years, various communications systems have been used in substations for protection, SCADA, and enterprise solutions. Today, the role of communications in the performance of substations is even more significant. Protection and communication engineers must have a good understanding of the various hardware channels and protocols used to maintain these systems as well as to develop new schemes. This webinar will review the various hardware systems and protocols used for the many applications within the substation environment.
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Line differential protection fundamentals
Presented by Imran Rizvi
As the use of fiber communication channels increases, line differential relaying is becoming a popular choice for line protection. This webinar will present the concept of line current differential relaying, and review scenarios where its application makes the protection scheme much simpler than distance protection pilot schemes.
>> View webinar | | Symmetrical components examples and applications
Presented by Michael Fleck
This webinar will present examples and applications from the Symmetrical components general overview webinar. It will expand on the basics of symmetrical components and illustrate, through example problems, the benefits of breaking the system’s phase quantities up into sequence components. We will investigate the sequence quantities that are present in different types of faults and use this information to analyze waveforms from actual fault waveforms.
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Input sources for protective relays
Presented by Roger Hedding
A Relay is only as good as the analog input information it has to work with. Having knowledge of the devices that provide the analog inputs to a relay is necessary.This webinar will explore analog conventional voltage and current instrument transformers, as well as non conventional instrument transformers such as optical current transformers and Rogowski coils. Other issues such as transient response, and stray flux will also be discussed.
>> View webinar | | Uninterrupted power supply and total power quality using high speed transfer devices
Presented by Uwe Bormann
More power utilities and industrial users are focusing on the importance of power quality and uninterrupted power supply. This webinar will discuss the application of high speed transfer devices, their interfaces and integration into the overall switchgear, control and protection systems, the device design, mode of operation, and the physical phenomena that must be considered while transferring loads between power supplies. We will also review the different types of transfer modes between networks.
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Digitizing copper: Applying IEC 61850 Process Bus to optimize P&C designs
Presented by Alejandro Schnakofsky
The UCA (utility communications architecture) international users group has released the implementation guidelines for digital interface to instrument transformers using IEC 61850 9-2. This document provides the industry with the necessary information and definitions to develop IEC 61850 9-2 LE (Lite Edition) implementations. This webinar will discuss in detail the application of the IEC 61850 process bus for protection and control applications.
>> View webinar | | Feeder protection fundamentals
Presented by Tim Erwin
This webinar will review the basics of feeder protection such as characteristics of protective devices, system grounding, and principles of feeder coordination including the application of loop control with reclosers to implement automatic restoration. Coordination of fuses, circuit breakers, reclosers and sectionalizers will also be reviewed.
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Line distance protection fundamentals
Presented by Elmo Price
This webinar will introduce the basic principles of line distance relaying. It will address basic impedance and distance measurement operating characteristics, transmission line fault loops and faulted phase selectivity. The application of these principles to the power system transmission line will also be discussed. This will include both step-distance and communication assisted directional comparison schemes, and the pros and cons of each.
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I | | Bus protection fundamentals
Presented by Imran Rizvi
Bus faults tend to be very robust, and therefore easy to detect. This robustness may cause current transformers to saturate in the event of close in external faults. Bus protection schemes must recognize current transformer saturation and restrain from operating for external faults while operating quickly for internal faults. This webinar will discuss the various schemes used for bus protection.
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Using IEC 61850 for advanced reliable feeder automation
Presented by Bryan Shannon
Several key applications of distribution feeder automation will be discussed including high speed automatic bus transfer and bus blocking using GOOSE messaging. Both applications can greatly improve feeder reliability, minimize wiring between IEDs and reduce commissioning time of automation schemes. Protection relays that natively support IEC 61850 allow the user to unleash the full interoperability potential of the standard, enabling the deployment of multi-vendor solutions.
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I | | Transformer protection fundamentals
Presented by Jay Hicks
This webinar will address the challenges of protecting transformers with digital relays. Fundamental theory regarding transformers, harmonic restraint, differential protection, and backup overcurrent protection will be discussed.
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Fundamentos de protección de distancia para líneas
Presentado por Alexandre Piatniczka
Este Webinar introduce los principios básicos para la medición de impedancia de la línea hasta la falla, es decir, la distancia de la línea hasta la falla y otras características de medida incluyendo alimentación de la falla por el extremo opuesto, selectividad de las fases falladas y carga. La aplicación de medición de distancia para la línea de transmisión en el sistema de potencia, ambas distancia temporizada y asistida por comunicaciones en sistema de comparación, sus pros y contras también serán discutidos.
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I | | Motor protection fundamentals
Presented by Joe Xavier
Motor protection is far less standardized than generator protection. There are many different types and sizes of motors, and a variety of applications. In an easy to understand way, this webinar will present how the different types of motors can be protected from potential hazards such as thermal damage, start-up, faults in the windings, etc. Basic motor electrical theory will also be studied.
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Fundamentos de protección para bus
Presentado por Alexandre Piatniczka
Las fallas en buses tienden a ser muy notorias y de esta forma fácil de detectar. Esta condición causa saturación en los transformadores de corriente en el caso de una falla externa cercana. Las protecciones de bus deben reconocer la saturación de los transformadores de corriente y restringir la operación para fallas externas, mientras operan rapidamente para fallas internas. Este WEBinar discutirá los varios esquemas usados para la protección de bus.
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I | | Generator protection fundamentals
Presented by Mike Kockott
Generator protection schemes are unique in many ways, and usually involve many breakers and auxiliary equipment, thereby increasing complexity. This webinar will address the basics of generator protection principles and the dynamics of synchronous generators. Typical faults and abnormal conditions will also be discussed.
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Fundamentos de protección para generador
Presentado por Joel Segalla
Los esquemas de protección de transformador son únicos en varias formas y usualmente involucran varios interruptores y equipos auxiliares resultando en mayor complejidad. Este WEBinar presentará los principios básicos de protección de generador y la dinámica de los generadores sincrónicos. Fallas típicas y condiciones anormales también serán discutidas.
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I | | Fundamentos de protección para tranformador
Presentado por Thiago Lopes
Este webinar presentará los retos de la protección de transformadores con relevadores digitales. Teoría fundamental de protección de transformadores, restricción de armónicos, protección diferencial y respaldos de sobrecorriente son tópicos a ser discutidos.
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Autotransformer protection
Presented by Jack Chang
The autotransformer is a special type of power transformer where the HV and LV terminals share the same physical copper winding. The winding in an autotransformer is divided into serial and common sections and the power transferred is also divided into the galvanic (electrical) and magnetic parts, thus making the autotransformer smaller, lighter and less expensive compared to a conventional two-winding transformer of the same capacity. This webinar introduces protection principles of an autotransformer which may differ from that of a conventional transformer.
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I | | Designing reliable ethernet networks for substation automation and real time protection and control applications
Presented by Alejandro Schnakofsky
As more information is used in protection applications, communications and information exchange inside substations is becoming more critical. Designing a network and selecting an architecture that insures availability and reliability of communications is a must when using communications for real time protection and control applications. This webinar will explore the intricacies and reliability of ethernet networks for real time protection and control applications.
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Series compensated line protection
Presented by Roger Hedding
Series capacitors are used extensively to increase the power transfer capability of long transmission lines. This webinar will discuss how series capacitors affect the protection of a line and the protection of adjacent lines connected to nearby busses.
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