Easy-to-use, compact and lightweight instrument helps engineers confidently overcome the challenges of troubleshooting IEC 61850 digital substation
Doble Test Assistant 8 Delivers Greater Diagnostic Power and Instrument Support for Comprehensive Field Testing and Analysismars 7, 2022
Latest version of DTA software is now compatible with Vanguard Turns Ratio products and adds exciting current components for testing with the M7100 and M4100.
Matters of NERC PRC and NERC CIP compliance intersect during protection system testing on substation networks. In the modern regulatory environment, the benefits of computer-based relaying are challenged by the costs of cyber security and disrupted or insufficient relay testing practices. The way forward demands interconnected data and the ability to track critical metrics automatically. Organizations can modernize while ensuring compliance readiness by implementing systems that integrate protection and cyber domains into scalable management platforms.
When primary station equipment trips out, it is often the substation maintenance engineers who must review the situation, get the data needed to make an informed decision, and then ‘make the call’…
As an integral part of the electric delivery system around the world and the interface between the transformer and overhead bus, bushings failures have a significant negative impact. Because of this, there is a special focus on determining the root cause of the failure. A bushing teardown investigation is employed in cases where there is a need to determine the failure mechanism. This paper is a brief synopsis of how companies perform a bushing teardown.
The 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).
We 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 Engineering Company, a leader in power grid diagnostic solutions and subsidiary of ESCO Technologies Inc. (NYSE: ESE), today announced it has acquired the assets of Phenix Technologies, the leading manufacturer of high voltage test systems and components. The acquisition positions Doble to build out its high voltage testing and measurement equipment portfolio and further expand into the commercial and industrial sectors.
Ce matériel configurable de dernière génération allie les performances des
Configurable next-generation hardware seamlessly blends conventional and digital test performance
ESCO 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).
L’analyseur universel de décharges partielles et d’interférences électromagnétiques évite d’avoir recours à un expert pour interpréter les données grâce à la classification automatique des signaux, aux assistants de mesures et bien d’autres fonctionnalités.
Ce nouveau détecteur d’hydrogène prélève l’huile du transformateur en temps réel, ce qui permet aux compagnies d’électricité de disposer de davantage d’informations sur la santé pour prendre des décisions plus rapides et plus sûres.
AI 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.
An 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.