A Vibration Based Condition Monitoring System for Power Transformers

This paper is concerned with the design and development of an on-line condition monitoring system for large power transformers utilizing signals such as transformer vibration, voltages, currents, temperature and state of switches. The system consists of two parts which communicate each other via Ethernet or series port. The formal is a front-end computer subsystem used for data acquisition and processing, and the latter is a remote computer subsystem for analyzing and monitoring transformer´s operating conditions. It provides a reliable real-time service to power industry by integrating the transformers´ electrical properties with the mechanical properties for detecting potential problems in power transformers. The developed system has became useful platform for an on-going project on the condition monitoring and fault diagnosis for large power transformers.