Hi,
On 27-5-2013 20:44, Andrew wrote:
The measurement task has been made unnecessarily difficult by
specifying 3-phase input to the control box. Normal single-phase
input would suffice here, given the power levels.
Not necessarily, if all three phases have a balanced load, then the
current through Neutral is 0 Amp!
See also: http://en.wikipedia.org/wiki/Three-phase
Here is an interesting circuit: http://www.nbtv.wyenet.co.uk/6-fasen.gif
with these voltage and current
http://www.nbtv.wyenet.co.uk/3-fasenspanning+stroom.jpg
It "converts" the 50 Hz three phases into one of 300 Hz, which is (as
many EE knows) a lot easier due to the smaller capacitor needed to be
directed into DC.
For those of you who can read Dutch this circuit is discussed at this
page: http://www.circuitsonline.net/forum/view/65574/2
Kind regards,
Rob
