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Harmonic distortion is a form of electrical pollution; affecting the quality of the distributed electrical power.

To make matters worse, harmonics generated on one site can be inadvertently exported via the supply cables to neighbouring businesses.

Voltage harmonics can be severe; resulting in serious problems.
- Transformers may overheat;
- cables may get too hot;
- insulation may break down;
- motors may overheat and break down;
- capacitors may overheat;
- electronic displays and lighting may begin to flicker;
- circuit breakers can trip and fuses blow;
- computers may fail; and
- meters may provide false readings.

What are the causes of harmonic distortion?
Variable speed drives and the drives used within heating, ventilation and air conditioning.

Which equipment is sensitive to excessive harmonic distortion?
Computers mainly; which should be protected from the harmful effects of voltage and harmonic distortion.

How can I remedy the harmonic distortion on my business premises?
Firstly, a power engineer from Hawksford must conduct a site survey in which power analysis monitoring equipment will be fitted to your incoming mains power. A series of tests will be conducted to measure the waveforms and harmonics present within the electrical current on your site.

Once the seriousness has been identified, Hawksford shall design their e3 energy efficiency system [a power saving system to reduce electricity bills] to incorporate harmonic filtration; which having being ordered and manufactured to specifically meet your requirements; will later be installed on your site.