•
ΣEQC-
… three-phase capacitive reactive energy registered during the ΣEP value was negative;
indicated with
Σ
-
kVArh
–
C
and preceeding
―
sign
Furthermore, energies in VAh are available too :
•
ΣES+
… three-phase apparent energy registered during the ΣEP value was positive; indicated with
Σ
-
kVAh
•
ΣES-
… three-phase apparent energy registered during the ΣEP value was negative; indicated with
Σ
-
kVAh
and preceeding
―
sign
The three-phase active power demand
ΣMD
is not displayed in this mode.
2.8 Instrument State Symbols
Except of measured data, the instrument indicates following states with dedicated symbols :
•
…........ Export of three-phase active power. Displayed when the
ΣP
value is negative.
•
/
… A1(top) and A2 (bottom) alarm lights off / on. See output setup below.
•
…......... DI1 digital input state is active.
•
…......... Instrument parameters are displayed.
2.9 Instrument Parameters
For proper operation in particular conditions, the instrument must be set. The instrument setup is determined using
parameters, for example the current transformer [CT] conversion, type of measured voltage connection (direct connection or
via a voltage transformer [VT] and its ratio), and connection configuration (wye / delta / Aron). Overview of all the parameters
is listed in the table below.
To check or edit the parameters, press the
key. As default, parameter group 01 is displayed and
symbol
(wrench) indicates, that setup data are displayed now.
The parameters are arranged in groups, numbered from 00 up. The number of group is displayed in the
first line in format
-
P
.
n
n
(with preceding dash). You can browse through the parameter groups with
the
and
keys.
If one parameter only in the group, its value is in the bottom line as shown at the example (nominal
power 400 kVA).
If two parameters in the group, usually the first of them is displayed in the 2
nd
line and the second in the 3
rd
line ( nominal
frequency 50 Hz and nominal voltage 230 V).
