Quality Control of Electricity for Specialized Electrical Equipment in a Medical Institution

In this article the main aspects related to the influence of electricity quality violations on the work of electrical equipment, including specialized for medical institutions, are considered. For health-care facilities, while it is important to comply with electricity quality indicators, there are no specific requirements for their monitoring. However, disruptions in the quality of electricity lead to a reduction in the accuracy of the imaging of diagnostic results, leading to study distortions and errors that may in some cases be fatal. As a result of the conducted study of indicators of electricity quality at especially responsible objects of the examined medical institution deviation of the total coefficient of harmonic component of THDi currents up to 48%. An active high harmonic filter was selected and installed to combat this violation. Installation of active high harmonic filter allowed to reduce THDi to 2.5%, which is included into existing international standards.