Measurement of Electrical Power Consumption of Electronic Household and Office Equipment

Abstract

This diploma thesis deals with measurement of electrical power consumption of electronic household and office equipment and, in particular, measurement of standby power. The need of addressing such a topic comes from the importance of evaluating low power, and the difficulties encountered while doing so. This document commences by reviewing articles that discuss the significant increase in electricity consumption caused by the usage of more appliances dropping standby power. Measurements were performed by two different approaches; the first approach consists of a SW application that was developed following terminologies and equations of electrical power measurement. This SW uses HD modules with A/D converters to acquire current and voltage signals. In the second approach, measurements were done by a professional power analyzer. The experiments were carried out in compliance with the European standard EN50564:2011. Devices such as LCD, mobile phone, and laptop chargers were used to perform these experiments. Ultimately, results using the two technologies were reported and compared.