Document Type



Available under a Creative Commons Attribution Non-Commercial Share Alike 4.0 International Licence


Electrical and electronic engineering


By making our electricity supply more secure, reliable and versatile will mean that we reduce our reliance upon oil, gas and solid fuels, which mostly exist outside of Ireland and the European community. The majority of our fuel is imported and this makes our economy dependent on outside interests and out of our control. Even more importantly as the world’s fossil fuel reserves are running out and electricity demand is ever increasing.

If we make our electricity networks secure and designed to the highest standards we can import and export electrical energy more easily as our demands change, for example by exporting to other European countries any surplus energy from wind farms or wave energy. This is achieved by paralleling all our power stations and micro generating plants, which consist of combined heat and power plants, wind turbines, hydro power, wave power and photovoltaic installations. These plants that are connected to the distribution system must be reliable and produce power of premium quality. Also the load itself must minimise its effect it has on power quality and the distribution system.

This dissertation will examine measure and quantify the effects that electrical harmonics have on our power quality and on our distribution system. Typical loads are examined, compact fluorescent lamps, switch mode power supplies, lamp dimming control and true and average RMS measurement of alternating currents.