Effects Voltage Sag on Single-Phase Domestic and Office Loads (216)

This paper presents the effects of voltage sags on domestic and office equipment and provides equipment sensitive curves for safe and reliable operation based on the experimental results.

With the increased usage of sensitive electronic equipments in various industries, offices and household appliances, it is important to protect them from any power quality disturbances to avoid unnecessary losses of any kind. From the several types of power quality disturbances, the most frequent and concerning for electric utilities from a customer point of view was voltage sag.

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What percentage of the electricity will be generated by distributed energy sources by 2050, i.e. power plants less than 10 MW? (39)

From the World Energy Investment Outlook 2008 it becomes clear the energy sector will have to play a central role in tackling climate change. The key issue, curbing CO2 emissions, can be done through major improvements in efficiency combined with rapid switching to renewables. Renewables can be central organised (like hydropower plants, large wind farms, co-firing of biomass, CSP) but also decentral (PV, local biomass, micro CHP, local renewable heat sources). Another solution to reduce emissions will be to implement carbon capture and storage (CCS) and continue to use fossil fuels.

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