visual effect of capacitors

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Regular Member

Joined: 07/07/2008
Location: Australia
Posts: 59
Posted: 07:56am 02 Sep 2008      

The issue of power factor is an important one to consider when you are doing your measurements.

If the power factor is badly out, and the batteries and cable hook up has some inductance, then you might be measuring many amps at the zero crossing of the sine wave.

You might then be tricked into thinking the batteries are charging because you simply multiply amps x volts that you see on your bench meter, but in actual fact because the amps are trailing the volts, you are getting less power than you think.

A dual input scope will show the **instantaneous** relationship between amps and volts and will give an insight into the true power produced.Edited by Haxby 2008-09-03