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12.4.5.3
Setting according to Q(P) characteristic
•
Idle power function:
Select the
Q(P) characteristic in the drop-down list.
QPX1 QPX2:
Enter the set values for QPX1 and QPX2 using the number entry fields. Take the set values from
Figure 4: Q(P) characteristic.
QPY1 QPY2:
Enter the set values for QPY1 and QPY2 using the number entry fields. Take the set values from
Figure 4: Q(P) characteristic.
Figure 10: Q(P) characteristic
Parameter
Meaning
QPX1
Starting point of the Q(P) characteristic on the power axis. The parameter is entered in
per cent (%).
Example: QXP1 = 50
à
The characteristic begins at 50% of the nominal power.
QPY1
Power factor at the start of the Q(P) characteristic. Normally, the power factor is at the
start of characteristic 1 (see Figure 4 Q(P) characteristic).
QPX2
End point of the Q(P) characteristic on the power axis. The parameter is entered in per
cent (%).
Example: QPX2 = 90
à
The characteristic ends at 90 % of the nominal power.
QPY2
Power factor at the end of the Q(P) characteristic. Normally, the power factor is under-
excited at the end of characteristic 0.90 (see Figure 4 Q(P) characteristic).
Table 1: Setting according to Q(P) characteristic
Time delay:
Enter the time in seconds after which the idle power is to be reset.
Minimum power:
Enter the minimum power up to which the idle current is not regulated in per cent (%).
1
Current active power in %
2
under-excited
3
over-excited
