Steca StecaGrid 3000 Installations- Und Bedienungsanleitung Seite 62

EN
Technical details
60
• Each characteristic curve is defined by 2 to 8 nodes.
• A node is defined by the output power P of the inverter
(x-axis) and the associated phase shift (y-axis).
• The phase shift can be set over a range of 0.95 (overexci-
tation) through 1.00 (no phase shift) to 0.95 (underexcita-
tion).
• The type of phase shift is shown in the graph using arrow
symbols defined as follows (defined from the point of
view of the inverter):
: overexcitation, inductive
: underexcitation, capacitive
• The 3 characteristic curves available for selection have the
following properties:
Default. char. curve: pre-defined according to the
selected country (example in Fig. left).
Char. curve cos φ = 1: pre-defined with cos φ = con-
stantly 1.00. This characteristic curve must be selected
if no reactive power control is to be performed on the
device.
Enter char. curve: the number of nodes and their x/y
values can be configured.
Exceptions: the first node is always located at x (P%) = 0%
and the last node is always located at x (P%) = 100%.
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