Steca StecaGrid 3000 Installations- Und Bedienungsanleitung Seite 61

Voltage limits (peak value)
Frequency limits
Voltage limits
Reactive power characteristic curve
Overview
2 2
746.217 | 12.27
ø
(average value)
3
4
1
5
The following voltage limits can be changed:
• Upper voltage disconnection value
• Lower voltage disconnection value
The disconnection value relates to the peak value of the
1)
voltage.
The following frequency limits can be changed:
• Upper frequency disconnection value
• Lower frequency disconnection value (Fig. left)
• Derating switch-on threshold (because frequency is too
high)
• Frequency threshold when switching on again
The following voltage limits can be changed:
• Upper voltage disconnection value
• Lower voltage disconnection value
The disconnection value relates to the average value of
1)
the voltage.
The reactive power characteristic curve must be set during
initial commissioning if this is prescribed for the previously
selected
country. The following applies:
• 3 characteristic curves are available for selection (Fig. left):
Default. char. curve (pre-defined)
–
Char. curve cos φ = 1 (pre-defined)
–
Enter char. curve (manually adjustable)
–
• After configuration, the characteristic curve is displayed as
a graph (example in Fig. left).

x-axis, output power P in %

y-axis, phase shift cos φ

Nodes (in example: 4 nodes)

Arrow symbol Overexcitation

Arrow symbol Underexcitation
EN
1)
(Fig. left)
1)
(Fig. left)
1)
1)
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