Yokogawa Power Primer

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Original poster: Sparktron01@xxxxxxxxxxx 

Folks

I got this excellent power measurement primer from Yokogawa Electric
(Yokogawa Corporation of America [YCA] for us in the 'States).

http://www.yokogawa.com/tm/tr/tm-tr0605_06.htm

I use Yokogawa WT20xx, PZ4000, and WT3000 powermeters/analyzers
at work and they are the "top of the metrology pyramid" for AC power 
measurement capability.   They are used pretty exclusively by power
utilities for substation/feeder loading surveys, large load power
monitoring, motor / transformer efficiency measurement, etc.

I have been to their SOTA Tier 2 Calibration facility
in GA (Atlanta Region).  Their equipment is pricey (WT2010 single phase
wattmeter is 10k, 2030 or 3000 is 20k + options), but excellent deals can
occasionally be had on surplus market.  Alex Tajnsek picked up a
serviceable "second generation" WT2533 (predecessor to WT20xx series)
DSP wattmeter for $20 US (no joke) at the Richmond salvage yard in
a box buried under some tech manuals and miscellaneous parts.

Yep, fully functional, and even had a still valid cal sticker on it...     :^D

So guess what we are going to use to measure power on his TC's???

Best Regards
Dave Sharpe, TCBOR/HEAS
Chesterfield, VA. USA