Harmonics Mitigation in a Hospital and its Benefits

A leading hospital in southern India faced chronic problems in terms of humming noise in capacitor bank, its failure, high temperature in transformer, and disturbances on the monitor of ultra sound machine. In order to rectify these problems hospital management carried out power quality study. During the study it was observed that harmonic content were quite high. As suggested by the consultant hospital management decided to install one 120 amperes active harmonic filter at the PCC level.

Detailed measurement based study was conducted at the hospital to analyse benefits gained by the hospital. During the case study it was also observed that by reducing harmonic content, the hospital also reduced energy charges causing direct savings in energy cost.

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