Channel Electric

Posted on | January 20, 2010 | Comments Off

Channel Electric

did kristina abernathy get fired from weather channel?

I heard there were cut backs and some Dave Schwartz, Cheryl Limkie were fired. Who else was fired? General electric should never had bought the Weather channel.

yes she was

Fender Stratocaster Electric Guitars & More NAMM 2010 Winter Guitar review show

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Does anyone tried using SEBICS or ENERKEEPER? These are electric devices that reduce electricity cost?

Can somebody give me feedback on the effects of these devices in the output voltage and eventually on the electrical equipment. I'm a little bit worried because these saving devices reduces the output voltage. In an electrical system like ours, the operating voltage is 220V. But once power is channelled to the device, sometimes voltage drops to 200V during peak hours.

Electric power is supplied as AC .. but you are charged on energy (watts = volts * amps).

The 'volts' follow a sine wave (at 50Hz) .. this means that under 'normal' loads, when the volts are max. the current (amps) are at max .. and when volts drop through zero, so does the amps .. this relationship is known as the 'power factor' ...

In the old days (before electronic metering), your Electricity Meter (an electromechanical device, designed on the assumption that volts and amps where always 'in step') could be fooled by changing the 'power factor' .. (crudely, by sucking more amps when the volts were low & less amps when the volts where high).

These days electronic meters 'sample' the volts and amps hundreds (if not thousands) of times a second .. so power factor fiddling is no longer effective ... in fact, these days you are CHARGED EXTRA for drawing power 'out of phase' ...

If the overall volts are reduced, the overall amps will have to increase so that the power delivered to the load will remain constant ..

Of course, if LESS power is delivered to some loads - for example, normal lighting systems, electric motors - then LESS power will be consumed (because the lights will be dimmer and the motor will run slower) ... however for other loads - such as heating systems - overall the total power used will remain the same (sure, if volts are lower, the heater runs cooler, but for the water to reach the required temperature, it will simply take longer ... and so the total energy consumed to heat the water is the same .. )

Anything that suggests you can get 'something for nothing' contradicts the very basis of Physics as we understand it (and opens the door to Perpetual Motion Machines)

NB> As far as I can discover, these devices are essentially Transformers .. if your output voltage drops under load, then you are overloading it .. (unless, of course, it's a design 'feature' to run your lights dimmer and your motors slower & thus achieve the claimed savings )

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