Improving the Power System safety in Hospitals by means of periodical SFRA tests on Medical Isolation Transformers

Abstract

The paper has the main aim of demonstrating a possible use of the well consolidated monitoring SFRA (Sweep Frequency Response Analysis) technique for preventive maintenance procedure applied to isolation medical transformers operating in hospitals’ group 2 medical locations. In particular, a novel testing platfom has been implemented that can perform the monitoring test on ITM during normal periodical verification provided by specific standard. In the paper, some results of the practical application of such a platform to several transformers in currently in operation in various Italian hospitals have been reported.