Re: Proposal: Wattmeter project

• To: tesla-at-pupman-dot-com
• Subject: Re: Proposal: Wattmeter project
• From: "Harri Suomalainen" <harri.suomalainen-at-pp.inet.fi> (by way of Terry Fritz <twf-at-verinet-dot-com>)
• Date: Fri, 15 Jan 1999 17:13:11 -0700
• Approved: twf-at-verinet-dot-com

>>The input current to a TC tends to be distorted which makes ordinary meters
>read 
>>incorrectly.
>
>Don't know what you mean here. You mean reflected power by inductive loads,
>so the current read by a typical meter is higher than the actual current?

There are two things that confuse simple meters:
1. Input current is phase-shifted due to inductive nature of load (so
called cos-factor)
2. Input current is not pure sinuoid at line frequency.  This tends to be
more or
less complex waveform.

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