Contrel EMA90, Руководство пользователя

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EMA90 - USER MANUAL
-41-
Variable reading time-band energy counters (option)
Note: These pages are displayed only if the option TIMEBAND is activated with the ACCESS code in
the menu GENERAL (see par.11.3).
26 pages to display the active energy counters (positive
and negative) and reactive (capacitive and inductive)
divided in 4 programmable time bands (P1 - P2 - P3 - P4).
The 26 pages are: consumption present year and the
two previous, consumption present month and the two
previous, consumption of today and the two day
previous, and total counter of bands for each phase
and for the three-phase system.
In a voice of menu setup (paragraph 11.6) it’s possible
to program times, days and months in which the
energy count is added at the different bands.
External signals, connected to digital inputs, and with
a right programming, can change the bands in the
time.
If the energy is Heavy the values are displayed in
MWh and MVArh.
Variable reading MIN & MAX values
12 pages (selected by “left” and “right” keys) show minimum and maximum of the value of 12
parameters taken after last reset. Date and time of reading are displayed on these pages.
It’s possible to see the values of these parameters:
•
three - phase system voltage (
Σ
V
L-L
)
•
L1 phase voltage (V
L1
)
•
L2 phase voltage (V
L2
)
•
L3 phase voltage (V
L3
)
•
three - phase system current (
Σ Ι
)
•
L1 phase current (I
L1
)
•
L2 phase current (I
L2
)
•
L3 phase current (I
L3
)
•
three - phase system active power (
Σ
W)
•
three - phase system apparent power (
Σ
VA)
•
three - phase system power factor (
Σ
PF)
•
three - phase system average active power (
Σ
W
av
)