deberian de comenzar estudiando conceptos de calidad de energia:
http://en.wikipedia.org/wiki/Harmonics_%28electrical_power%29http://en.wikipedia.org/wiki/Power_qualityde por si la calidad de energia que entrega la distribuidora deja mucho que desear, se hizo por ahi un estudio sobre ello y en verdad mucho de lo que se nos cobra es en realidad perdidas debido a problemas de calidad de energia, que se supone la distribuidora esta sujeta a normas en la distribucion de la electricidad, pero aqui como que les vale y como nadie pone atencion, ahi se va.
http://www.advancedenergy.org/buildings/knowledge_library/systems_approach/energy_saving_devices.html
Two Different Types of Devices on the Market
Residential "energy-saving" devices are marketed under various names, and are available in most neighborhood hardware stores. They are simple to use, because you just insert the device inline between the appliance plug and the wall outlet.
There are two basic designs for these energy saving devices, neither of which has proven to provide a cost savings when used under normal conditions. One of the biggest reasons that the energy saving devices sell simply boils down to gullible consumers.
Most consumers don't have a working knowledge of electricity (
les hablan ve! ), and many more simply fail to process the information they have at their fingertips.
http://www.homeenergy.org/archive/hem.dis.anl.gov/eehem/97/970505.htmlhttp://www.homeenergy.org/archive/hem.dis.anl.gov/eehem/93/931113.html