DEMA CPM 310 G User Manual

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Fundamental Harmonics Measurements Menu
Fundamental Harmonics Measurements Menu displays
the measurements of fundamental harmonics (f= 50 Hz
/ 60 Hz) of the primary R, S, T phases and the primary
earth current. The display menu is shown on the left.
Using RMS Current Measurements Menu and
Fundamental Harmonics Measurements Menu together,
administrators can easily evaluate the TDH (Total
Harmonic Distortion) on the line.
Note that the values shown on the menu are primary
values.
Fundamental harmonics current values are measured
and displayed within the range of (0.1-40.0) I
n
and
(0.1-40.0) I
en
. Values lower than the base limit will
neither be measured nor be displayed, while values
exceeding the upper limit will be evaluated and
displayed as 40 I
n
or 40 I
en
.
For the fact that DEMA CPM 310 G evaluates the
primary current values by utilizing the information
acquired from the secondary signals and the CT
Settings menu, the values at the CT Settings menu
must be set correctly to make sure RMS Current
Measurements Menu displays correct evaluations. □
Main Screen » Menu »
Measurements » Fundamental
Harmonics

DEMA CPM 310 G Specifications

General

Brand	DEMA
Model	CPM 310 G
Category	Relays
Language	English