Power quality issues with medical electronics equipment in hospitals

摘要

This paper describes power quality audits conducted at hospitals in India. Voltage, current and power measured at various points were used to assess the quality of the power. The main power quality problems found in hospitals were voltage flicker, neutral currents, and harmonic distortion (THD) value. Measurement, analysis and conditioning of power quality has been studied in few different hospitals as a case study. Recommendation have been made to mitigate the issue.