82 The ESI-Manager user interface
Manual Energy Storage Inverter ESI-S
(where available). The order of the unit is determined by the DIP switch unit
identification setting at the moment of commissioning.
7.8.1 The ‘Overview’ menu
The Overview menu summarizes the following characteristic parameters (
These parameters are expressed as numerical values in a list.
Table 38: Summary of parameters displayed in the ‘Overview’ menu
Parameter
name
Unit Description
Vrms
V
RMS value of all the line-to-line voltages
THDV
%
Total harmonic distortion of all the line-to-line voltages
V1
V
RMS value of the fundamental component of all the line-to-line
voltages
Frequency
Hz Network
frequency
V dc bus
V
inverter
DC
capacitor
voltage
Imbalance
%
Indicates
the
imbalance
in
supply
voltage
(%value)
Irms
A
RMS value of all the line currents
THDI
%
Total harmonic distortion of all the line currents.
I1
A
RMS value of the fundamental component of all the line currents
ESI Irms
A
RMS value of all the inverter currents
P
W,
kW,
MW
Active power in the network at the location of the CTs
P > 0: Load absorbing active power
P < 0: Load generating active power
Q
var,
kvar
Mvar
Reactive power in the network at the location of the CTs
Q > 0: Inductive reactive power
Q < 0: Capacitive reactive power
S
VA,
kVA,
MVA
Apparent power in the network at the location of the CTs
PF
-
Power factor: calculation based on the fundamental and the
harmonic values of the measurements. Measurement only valid for
quasi-balanced loads.
