Subestación digital
Soluciones de prueba inteligentes y especializadas para redes IEC 61850
El software, la comunicación y el control de datos, etc., son estándar en las subestaciones modernas. A través del desarrollo e implementación de IEC 61850 desde mediados de la década de 2000, ha cambiado la forma de diseñar, configurar y operar subestaciones. Esta influencia de TI trae consigo muchas ventajas, pero también presenta nuevos desafíos para la industria.
En la subestación digital, las señales analógicas y las conexiones uno a uno patentadas entre los IEDs y los sensores de red han evolucionado hasta convertirse en redes de datos y flujos de datos.
IEC 61850, con sus modelos de datos abstractos definidos, se puede asignar a varios protocolos: MMS (Especificación de mensajes de fabricación), GOOSE (Evento del sistema orientado a objetos genéricos) y SMV (Valores medidos muestreados).
En las subestaciones digitales, los contactos de disparo convencionales se reemplazan por un mensaje GOOSE y las tensiones y corrientes analógicas convencionales se reemplazan por Sampled Values (SV) generados por Merging Units (MU).
La configuración de GOOSE puede ser una tarea compleja. En MGC, esa configuración se optimiza con un "clic para suscribirse" para asignar el mensaje GOOSE apropiado a una entrada o salida binaria.
El comprobador de relés SMRT1 monofásico, potente y del tamaño de un maletín es todo lo que necesita para las pruebas de protección IEC 61850, lo que lo convierte en una solución rentable para ayudarlo a comenzar.
Detecte fácilmente las diferencias entre el diseño y el estado real del tráfico GOOSE comparándolo con su descripción en el archivo SCD. La agrupación inteligente y las diferencias resaltadas también brindan una excelente visión general.
Conectar una PC a la red de la subestación no está exento de riesgos. Sin embargo, las unidades SMRT y FREJA proporcionan un punto de acceso seguro a la red de la subestación y, por lo tanto, no pueden transmitir datos 'falsos' ni infectar la red con un virus. Esto también se conoce como el 'diodo' GOOSE.
La función de rastreador garantiza que no se transmita nada y que todo el tráfico GOOSE sea capturado y agrupado para una buena visión general. Si un estado de cambio de GOOSE, se resalta para que sea fácil detectar cambios.
Con todas las capacidades IEC 61850 disponibles desde la pantalla táctil integrada, no se necesita una PC. Sin problemas de conexión a PC, sin problemas de licencia de software y sin riesgo de transmisión de virus a la red de la subestación.
In digital substations the conventional trip contacts is replaced by a GOOSE message and the conventional, analogue voltages and currents are replaced by Sampled Values (SV) generated by Merging Units (MU).
The Megger MRCT is a light weight, robust, portable unit used toperform demagnetization, ratio, saturation, winding resistance, polarity, phasedeviation, and insulation tests on current transformers. The MRCT automaticallycalculates ratio errors, saturation curves, and knee points. The MRCT providesa microprocessor-controlled variable voltage and current output and precisioninstrumentation for automatically testing single and multi ratio CTs, reducingtesting time and increasing productivity. The MRCT will directly connect tomulti ratio CT’s and perform all tests – saturation, ratio and polarity,winding resistance and insulation – on all taps with the push of a button andwithout changing leads.
GOOSE configuration can be a complex task. In MGC that configuration is optimised by ‘click-to-subscribe’ to map the appropriate GOOSE message to a binary input or output.
The Megger MRCT is a light weight, robust, portable unit used toperform demagnetization, ratio, saturation, winding resistance, polarity, phasedeviation, and insulation tests on current transformers. The MRCT automaticallycalculates ratio errors, saturation curves, and knee points. The MRCT providesa microprocessor-controlled variable voltage and current output and precisioninstrumentation for automatically testing single and multi ratio CTs, reducingtesting time and increasing productivity. The MRCT will directly connect tomulti ratio CT’s and perform all tests – saturation, ratio and polarity,winding resistance and insulation – on all taps with the push of a button andwithout changing leads.
The briefcase size, powerful, single phase, SMRT1 is all you need to make protection related IEC 61850 testing which makes it cost efficient to get started.
The Megger MRCT is a light weight, robust, portable unit used toperform demagnetization, ratio, saturation, winding resistance, polarity, phasedeviation, and insulation tests on current transformers. The MRCT automaticallycalculates ratio errors, saturation curves, and knee points. The MRCT providesa microprocessor-controlled variable voltage and current output and precisioninstrumentation for automatically testing single and multi ratio CTs, reducingtesting time and increasing productivity. The MRCT will directly connect tomulti ratio CT’s and perform all tests – saturation, ratio and polarity,winding resistance and insulation – on all taps with the push of a button andwithout changing leads.
It is a concern to connect a PC to the substation network. SMRT and FREJA provide a secure access point to that network and therefor cannot transmit ‘false’ data, nor a virus. This is also known as the GOOSE ‘diode’.
The Megger MRCT is a light weight, robust, portable unit used toperform demagnetization, ratio, saturation, winding resistance, polarity, phasedeviation, and insulation tests on current transformers. The MRCT automaticallycalculates ratio errors, saturation curves, and knee points. The MRCT providesa microprocessor-controlled variable voltage and current output and precisioninstrumentation for automatically testing single and multi ratio CTs, reducingtesting time and increasing productivity. The MRCT will directly connect tomulti ratio CT’s and perform all tests – saturation, ratio and polarity,winding resistance and insulation – on all taps with the push of a button andwithout changing leads.
The sniffer function ensure that nothing is transmitted and that all GOOSE traffic is captured and grouped for good overview. If a GOOSE change status is it highlighted so it is easy to detect changes.
The Megger MRCT is a light weight, robust, portable unit used toperform demagnetization, ratio, saturation, winding resistance, polarity, phasedeviation, and insulation tests on current transformers. The MRCT automaticallycalculates ratio errors, saturation curves, and knee points. The MRCT providesa microprocessor-controlled variable voltage and current output and precisioninstrumentation for automatically testing single and multi ratio CTs, reducingtesting time and increasing productivity. The MRCT will directly connect tomulti ratio CT’s and perform all tests – saturation, ratio and polarity,winding resistance and insulation – on all taps with the push of a button andwithout changing leads.
With all IEC 61850 capabilities available from the onboard touch screen there is no need for a PC. No PC connection issues, no software license issues, and no risk to transmit any virus to the substation network.
The Megger MRCT is a light weight, robust, portable unit used toperform demagnetization, ratio, saturation, winding resistance, polarity, phasedeviation, and insulation tests on current transformers. The MRCT automaticallycalculates ratio errors, saturation curves, and knee points. The MRCT providesa microprocessor-controlled variable voltage and current output and precisioninstrumentation for automatically testing single and multi ratio CTs, reducingtesting time and increasing productivity. The MRCT will directly connect tomulti ratio CT’s and perform all tests – saturation, ratio and polarity,winding resistance and insulation – on all taps with the push of a button andwithout changing leads.
To compare the sniffed GOOSE traffic with its description in the SCD file is a very powerful solution to easily detect any differences between the design and actual status. Smart grouping and highlighted differences gives a superb overview.
The Megger MRCT is a light weight, robust, portable unit used toperform demagnetization, ratio, saturation, winding resistance, polarity, phasedeviation, and insulation tests on current transformers. The MRCT automaticallycalculates ratio errors, saturation curves, and knee points. The MRCT providesa microprocessor-controlled variable voltage and current output and precisioninstrumentation for automatically testing single and multi ratio CTs, reducingtesting time and increasing productivity. The MRCT will directly connect tomulti ratio CT’s and perform all tests – saturation, ratio and polarity,winding resistance and insulation – on all taps with the push of a button andwithout changing leads.
MGC
El MGC proporciona tareas avanzadas de resolución de problemas de red y asigna mensajes GOOSE a entradas y salidas binarias.
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SVA
El SVA proporciona visualización y control de válvulas muestreadas (SV) para múltiples flujos de datos.
SMRT – Serie FREJA
El equipo de prueba es la pieza de hardware en el sistema de prueba y la interfaz a la red IEC 61850. Los modelos de pantalla tienen todas las capacidades de prueba a bordo.
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