Data acquisition system for on-line temperature monitoring in power transformers

摘要

This paper presents an original data acquisition and transmission system designed and optimized for online temperature monitoring systems in electric power transformers - system is called SPOTEL. The main purpose of this work is to evaluate a cost effective system that is based on open source components and modular hardware layout, supporting the highest reliability and data safety and security requirements, allowing it applications under demanding industrial conditions. A detailed description of the proposed system design is presented, including hardware and software implementations. Finally, its exemplary on-site implementation and simple reliability analysis have been presented. As a result, SPOTEL confirmed its reliability and functionality regarding the on-line temperature monitoring, typically not met in other similar solutions, and it is now being implemented in several hundreds of transformers of the selected population. (C) 2020 The Author(s). Published by Elsevier Ltd.