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This article presents a prototype development of a digital optical Instrument Transformer with IEC 61850-9-2 interface. We present the main topics related to the implementation of a process bus according with IEC 61850-9 standard and a block diagram of Instrument Transformer prototype proposed. Some results from mathematical simulations and prototype testing are presented at the end of this article.
This article presents a summary of the most significant information obtained by the authors for implementing a process bus according to IEC61850-9 Standard. The results of this study were grouped into five relevant topics: IEC61850-9 variations, process bus reliability, time synchronization between devices, cyber security and measurement accuracy. This research aims mainly to disseminate the information...
Our aim is to show the results from a mathematical simulation of the behavior of a differential protection algorithm for power transformers compared with the loss of the time synchronization signal in the process bus according to IEC 61850-9-2. Described herein are an original model for simulating the samples in the process bus, a proposed algorithm for differential protection of power transformers...
In all transmission lines in Brazil, supervision and monitoring of the towers are made through either regular inspections in the field or the identification of irregularities. In this case, the Company starts an administrative procedure or use this information for planning the next survey or even the displacement to the field for the investigation and immediately repair such irregularity. The ETEP...
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