Your electricity operates on a system… it’s all interconnected. To further complicate the issue, your system is only one of many that make up the electrical grid, which is just a larger system… again, all interconnected. What that means, is if your neighbor has an electrical problem, there is a significant probability that it will travel through the grid, and be your problem too. We describe dirty electricity as being ’viral’. Like a virus in your body that effects your overall health, ’dirt’ in electrical system impacts everything that’s connected. The image to the right illustrates the travel of one of these ’dirt’ occurrences, caused by an HVAC motor powering on, through the electrical system of a normal facility
Our entire electrical power system has been developed with sine waves in mind. The ideal 3 Phase sine wave pattern is sinusoidal such as the example shown to the left. Note the clean, smooth wave pattern of each Phase, with the wave topping at 90°, bottoming at 270° and returning to its base level (“0”) at 360°. Operating on electricity with this pattern of delivery, our electrical devices would run in ‘steady-state’… smoothly and at ideal temperatures and consumption levels…
“Dirt” (properly called power anomalies) is constantly & continually present polluting the wave pattern. Simply put, the ‘dirt’ in our electrical systems are the result of Surges, Transients and Total Harmonic Distortion (THD). These ‘events’ impact the ideal wave pattern with distinct and measurable results. The illustration (top right) shows an ‘event’ delivered to a 3 Phase powered machine from steady-state to rejection (machine off-line = downtime). The illustration on the lower right, shows an ’event’ affecting a transformer and the impact on the sine-wave pattern.
In some literature, surges and transients are considered interchangeable, but we like to define a Surge as being comparatively slow, prolonged, and with high total energy while a Transient is very fast, but with low total energy. So, a Surge can be caused by a lightning strike or transformer issue somewhere in the “grid” (generally an external problem), while a Transient can be caused by inductive kickback (an electric motor switching on, for example), or electro-static discharge and so on, which usually have an internal source.
>> You pay for “ghost” electricity… many meters read surges & transients as usage.
>> Your electrical devices will draw additional power to maintain their rated output.
>> All electric motors, from the small fan motor in a PC to the large motor on a production line experiences premature degradation as the power feed oscillates… increasing maintenance costs and decreasing the motors’ lifespan.
>> Electrical transformers, including the ballasts in your light fixtures, lose efficiency and decay at much faster rates (incidentally, so do the lighting elements).
>> THD is a primary source of electronic data file corruption & electronic systems downtime.