3
3.1 Measured Quantities - Depend on the Connection Type
43Power Meter SICAM P 7KG7750/55, Manual
E50417-B1076-C340-A6, Edition 09.2013
Explanations to the Table 3-1
Table 3-2 Explanation
No. Name Description
1 (Space line) If a space line is selected as a measured quantity, the corresponding
fields remain empty on the display screens.
8 Voltage E-N The displayed value of the voltages (E-N) is always 0, but the value of
residual voltage is shown, if it occurs.
12 Average current The average value of the three phase currents is displayed here.
47
to
52
Harmonics U / I For harmonics up to the 21st, the standards (IEC 61000-2-2 and
EN 50160) specify compatibility levels only for harmonics of orders 5, 7,
11, 13, 17, and 19. Those of even order and those divisible by 3 are
considered irrelevant. Therefore, on the "Harmonics" screen, selection is
limited to all uneven orders up to the 21st. The selection of single
harmonics on the measured values screens is limited to the 5th, 7th, 11th,
13th, 17th and 19th.
For voltage harmonics, values are displayed as a percentage of the first
harmonic. For current harmonics, the values are displayed directly in A.
53
to
60
Active energy demand The default setting (industry mode) is "Load (standard)" indicated by a
positive energy flow direction. You can configure the power supply
company mode. In this mode, a positive value indicates "Generator".
61
to
64
Active energy total The sum of the absolute values (without sign) of active energy demand
and active energy supply.
65 Active energy (3L)
net demand
Net energy is equal to energy demand minus energy supply. Because this
measured value can be negative and can decrease as well as increase, it
is not possible to use this measured value to generate pulses via the
output contacts.
74
to
77
Reactive energy total The sum of the absolute values (without sign) of inductive and capacitive
kvarh.
82 Counter 1 / 2 / 3 / 4 Number of limit violations
83
84
Binary inputs,
analog inputs
optional
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