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9-6
IM02601001E
www.eaton.com
Functions on the Web Server Pages
Locating Power Information
From the
Power
page, click one of the radio buttons on the left side of the page that rep-
resents the type of power measurement you want to view. The page will update to display
a graph with minimum, maximum and average values as per the selection.
Power Factor (Apparent)
Quality
The
Quality
page contains information about the present power quality for PXM2260 and
2270 meters. These meters calculate the following instantaneous values, averaged over
a period of 60 cycles:
Percent THD of Current for Phases A, B, and C
•
Percent THD of Voltage for Phases A, B, and C.
•
Using the drop-down box above the graph, you can select to view this information as a
trend, with minimum and maximum values, or as harmonics.
Note:
The PXM2250 meter does not measure %THD.
THD
The Total Harmonic Distortion (THD) is the ratio, expressed as a percentage, of the rms
value of the ac signal after the fundamental component is removed and inter-harmonic
components are ignored to the rms value of the fundamental. The formula for THD is
provided below. The variables X
1
and x
n
may represent either voltage or current and may
be expressed either as rms or peak values, as long as all are expressed in the same
fashion.
Содержание Pow-R-Line SPX0361126
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Страница 35: ...23 Instruction Manual IM01500001E Effective July 2011 Pow R Line switchboards eaton corporation www eaton com ...
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Страница 156: ...10 22 IM02601001E www eaton com Setup on the Web Server Pages ...
Страница 166: ...A 2 IM02601001E www eaton com Navigation Maps Main Menu Screens Sheet 1 ...
Страница 167: ...www eaton com IM02601001E A 3 Navigation Maps Operating Mode Screens Sheet 2 ...
Страница 168: ...A 4 IM02601001E www eaton com Navigation Maps Reset Mode Screens Sheet 3 ...
Страница 169: ...www eaton com IM02601001E A 5 Navigation Maps Configuration Mode Screens Sheet ...
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Страница 172: ...B 2 IM02601001E www eaton com DIP Switch Description ...
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Страница 243: ...Instruction Manual IM01005019E Rev 3 Effective April 2010 Eaton SPD Series Surge Protective Device For Integrated Units ...
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Страница 275: ...Date PDF Generated 10 19 2012 Page 1 of 1 ...
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