Determining Cellulose Degradation in Transformers Using Indirect Tests
August 31, 2021The design life of a transformer is usually about 20 to 25 years. In the United States, estimates show the average age of a transformer is currently around 42 years, which means a number of even older units are still in service. As with all things, transformers age and degrade over time. Transformer failures can come from a variety of sources including through faults, faulty crimps and brazes, corrosive sulfur, poor design, water intrusion, collateral damage from a bushing or load tap changer (LTC) failure, incorrectly sized leads, and a host of other issues. Overall, however, the demise of a transformer from normal aging is linked directly to the condition of the solid insulation (i.e. paper, cellulose).
Condition Monitoring Realities: Dealing with the Unexpected
August 15, 2021We should have expectations when applying condition monitoring to transformers. If we know what to expect then we can identify measurements which are unexpected or anomalous and worthy of deeper investigation.
Doble adquiere Phenix Technologies, fabricante de sistemas de prueba de alto voltaje
August 9, 2021Doble Engineering Company, líder en soluciones de diagnóstico de redes eléctricas y filial de ESCO Technologies Inc. (NYSE: ESE), ha anunciado hoy la adquisición de los activos de Phenix Technologies, fabricante líder de sistemas y componentes de prueba de alto voltaje. La adquisición posiciona a Doble para construir su cartera de equipos de prueba y medición de alto voltaje y expandirse aún más en los sectores comercial e industrial.
Doble Engineering Company lanza los simuladores de sistemas de potencia F8000
June 8, 2021El hardware configurable de nueva generación se combina a la
ESCO Announces Acquisition of Global Utility Supplier
May 20, 2021ESCO Technologies Inc. (NYSE: ESE) today announced that it has entered into an agreement to acquire I.S.A Altanova Group S.R.L. (Altanova), a well-established, leading supplier in the field of advanced condition assessment technologies centered around partial discharge (PD) measurement and analysis, as well as test instruments for electrical apparatus (www.altanova-group.com).
Doble simplifica las pruebas de sistemas de aislamiento de activos de alto voltaje con Spark P3
April 12, 2021El analizador universal de descarga parcial e interferencia electromagnética elimina la necesidad de una interpretación experta de los datos con clasificación automática de la señal, mediciones guiadas y mucho más
Doble lleva el monitoreo de condición a más transformadores con Calisto H1
April 8, 2021El nuevo detector de hidrógeno toma muestras del aceite de los transformadores en tiempo real, dotando a las empresas de servicios públicos de más información sobre su estado para tomar decisiones más rápidas y seguras.
Successful application of AI techniques: A hybrid approach
November 23, 2020AI systems provide a lot of promise in the analysis and evaluation of power system data. This article shows some of the benefits of the application of AI, identifying the strengths and weaknesses of the approach, and provides a way forward to apply AI in a meaningful and controlled manner.
Think of a number…
November 5, 2020An asset health index (AHI) summarises a lot of disparate data into a single value in order to estimate the condition of the asset, such as a transformer. The big question is: does everyone understand what the AHI really means? Technical information used to derive an AHI is lost. At the same time, looking at the AHI value, the end-user can get a feeling that they know all they need to know, which sometimes can be misleading.
Doble aumenta la productividad, la precisión y el rendimiento de las pruebas de transformadores con el nuevo analizador de respuesta al barrido de la frecuencia M5500
November 2, 2020El instrumento SFRA de próxima generación reduce notablemente el tiempo de prueba y los costos de mantenimiento, al tiempo que asegura mediciones de alta calidad en el campo.
An Intelligent System for Condition Assessment of Power Transformers
October 23, 2020Health index (HI) approach has been adopted widely as a tool that assists the asset managers to prioritise their plans and actions. However, the conventional computation of HI, which is based on scoring and ranking, has several drawbacks. In this work, the fuzzy logic approach is utilised to build up an intelligent HI system to assess the condition of power transformers based on oil quality and DGA results.
PSDcast – Do Cali Wildfires Emphasize Need for Green Energy?
October 19, 2020The episode covers the importance of upscaling infrastructure and maintenance with the transition of renewables against the background of climate-driven weather events, the expansion of microgrids, and how Doble, specifically can support utilities through the transition.
Mejora de la fuerza laboral de Ingeniería en energía: La evolución de las habilidades proporciona nuevas oportunidades
October 14, 2020Una fuerza laboral que entienda cómo funciona la red eléctrica es fundamental para el éxito de la industria.
Gestión de boquillas: De las estadísticas a las singularidades: ¿dónde enfocarse?
October 6, 2020La gestión de boquillas presenta desafíos, pero también oportunidades. En su artículo en Asset Solutions, Tony McGrail se une al Dr. Ronald Hernandez, tomando el concepto de singularidad y aplicándolo al análisis estadístico de datos de boquillas.
POWER Insights—Advanced Diagnostics to Monitor and Secure the Grid
September 1, 2020Paul Griffin, vicepresidente de servicios profesionales de Doble, se unió recientemente a POWER para hablar sobre su trabajo en Doble y la historia centenaria de la empresa en apoyo a la generación de energía, como parte de la serie de videos POWER Insights.