L2234
Emax
118/158
Model
Scale
Page No.
Doc. No.
Apparatus
1SDH000460R0002
L2778
15.1.5.4.6
Energy
The unit also provides meter readings of the total active, reactive and apparent energy of the system. The minimum value that can be displayed
is 0.001 MWh or 0.001 MVARh or 0.001 MVAh. The energy meters' end of scale is approximately 2.15 billion kWh / kVARh / kVAh.
The meter can also be reset by pressing the "Reset meters" key on the menu.
For the ranges and precisions see par.14.2.9.15.
15.1.5.4.7 Peak factor
On this page you can also measure the peak factor - i.e. the relationship between I
peak
/ I
rms
, - for each of
the phases. This measurement is not displayed for phase currents below 0.3xIn and it is not available for
phase currents above 6xIn. For the ranges and precisions see par. 14.2.9.15.
I2 :
- - -
Ne : - - -
Peak factor
I1 :
- - -
I3 :
- - -
15.1.5.4.9 Contact wear
This submenu shows the percentage of wear on the CB contacts.
15.1.6
Data Logger
The data logger is active both with Vaux and with a power supply from the PR120/V.
For further information, see par. 16.4.
15.1.5.4.1 Waveforms
When you access this menu page, 120 samples of the wave form of the selected phase are acquired and
displayed.
When you press the
↵
key, a new wave form is acquired and displayed.
Using the
↑
or
↓
keys, you can display the waveforms of the following measurement channels (L1, L2, L3,
Ne, V1, V2, V3, Gt).
15.1.5.4.8 Mains frequency
This page enables you to view the mains frequency. This is calculated on the voltages (if Umax > 0.1Un).
For the ranges and precisions see par. 14.2.9.15.
The measurement is guaranteed a maximum of 5s after the change in frequency.
Measured value
50.0 Hz
Mains Frequency
I1 = - - -
Energy counters
Reset counters
Energy counters
Energy
2
1/2
0 kVAh
0 kVARh
Energy counters
0 kWh
2/2
Reset counters
Reset counters
Energy counters
Energy
Enter
↵
ESC +
↓
+ Enter
↵
You can analyze the harmonic of the samples acquired and displayed on the "Waveforms" page, i.e. the
page on the left is displayed, containing the module of the harmonics from the 1
st
to the 40
th
(up to the 35
th
for a mains frequency set to 60Hz) given as a percentage of the fundamental (harmonic no. 1), which is
consequently always given as 100%.
Using the
↑
and
↓
keys you can go to the bar of interest (at the "No." of harmonic required, the bar begins
to flash) and read the corresponding percentage value.
The measurement precision is 5%.
Total distorsion
:
150.0 %
Harmonic n. 1/40
:
100.0 %
Ne
Value of harmonic No.
No. of currently-selected harmonic
