Yes Berke.  The power meter will show the harmonics and include them as part of 
the RMS current reading.  The pf figure effectively neglects them and 
concentrates upon the fundamental component which is the important one when 
calculating input power.

Dave


-----Original Message-----
From: Berke Durak <berke.du...@gmail.com>
To: vortex-l <vortex-l@eskimo.com>
Sent: Mon, May 27, 2013 3:34 pm
Subject: [Vo]:Re: [Vo]:Re: [Vo]:Torbjörn Hartman describes


Wouldn't harmonics show on the power analyzer?

On Mon, May 27, 2013 at 2:30 PM, Duncan Cumming <spacedr...@cumming.info> wrote:
> With chopped DC, a clamp on ammeter will show the AC component. So if you
> had 0 to 1 amp chopped, the ammeter would show 0.5 amps peak AC. So you get
> a partial reading, substantially less than the true current that is actually
> flowing. IMHO, this could have happened at the demo. I am not saying that it
> did (I was not there), merely that it could have.
>
> Duncan
>
> On 5/26/2013 8:09 PM, a.ashfield wrote:
>>
>> Duncan Cumming
>> "No, it does not. What happens is that the diode rectifies the mains to
>> DC, and the DC is not sensed by the clamp-type current meter. "
>>
>> What would the clamp on meter show with chopped DC?
>>
>>
>>
>


 

Reply via email to