older and cheaper inverters are square wave (super cheap) or, slighly better, "modified sinewave" (read almost square). almost all electrical devices run better on pure sinewave, and newer, nicer inverters are as good or better than grid power; the wave form is extremely high frequency steps that become a true sine wave after some filtration, and the frequency and voltage control is almost always better than the grid. as far as "stray voltage" there are definitely going to be some magnetic fields around the inverter, which decrease as a cube root of the distance (read "gets less powerful very fast as you go away from it") A magnetic field will induce a voltage in an adjacent wir, coil, or just possibly a wire-like metal object, but I don't think that the fields around an inverter would be strong enough to create avotage that would harm an animal of the human species, or any other.Of course the usual magnetic fields surround the normal house wires regardless of whether the power comes from the grid or an inverter. anton
some equipment doesn't work well on less than pure sinewave(motors & electronics). no medical problems have been observed. > I'm curious, and slightly concerned about the use of inverters to > turn DC to AC power. I've heard that the use of inverters causes > extremely high magnetic/electric fields which are a cause of stray > voltage (a concern here since we are a dairy farm and have paid > dearly for it) and I've also heard that if you wish to use an > inverter to power a house, they can damage electronic equipment. I > am not sure if this is because the cheaper ones don't convert into a > true sine wave but just a square wave (or if there is a high amount > of feedback from the coils on those things). > Stray voltage can be the cause of many illnesses and I won't go > into that now... but another thing is that it is one thing to want an > inverter to power a house, but how much to get the necessary > equipment to synchronize the power to the grid? > ------------------------ Yahoo! Groups Sponsor ---------------------~--> FREE COLLEGE MONEY CLICK HERE to search 600,000 scholarships! http://us.click.yahoo.com/Pv4pGD/4m7CAA/ySSFAA/FGYolB/TM ---------------------------------------------------------------------~-> Biofuel at Journey to Forever: http://journeytoforever.org/biofuel.html Please do NOT send "unsubscribe" messages to the list address. To unsubscribe, send an email to: [EMAIL PROTECTED] Your use of Yahoo! Groups is subject to http://docs.yahoo.com/info/terms/
