12-16 9440300990
Grid Code DECS-250
2. Application of a negative adjustment results in a decrease of exported reactive power. Thus, the
power factor value will increase or move toward PF = 1.0.
See Figure 12-18.
Figure 12-18. Power Factor: Positive
When the power factor is negative, reactive power is being imported. Applying an adjustment results in
the following:
1. Application of a positive adjustment results in a decrease of imported reactive power. Thus, the
power factor value will decrease (become more negative) or move toward PF = -1.0.
2. Application of a negative adjustment results in an increase of imported reactive power. Thus, the
power factor value will increase (become less negative) or move away from PF = -1.0.
See Figure 12-19.
Figure 12-19. Power Factor: Negative
Adjustment Sources
The Q(PF) setpoint may be adjusted by the DECS-250 auxiliary input, an Analog Expansion Module
AEM-2020 analog input, or via remote communication (Modbus
®
or CAN bus). For all adjustment
sources, the value of the Q(PF) Gain setting is applied to the value read from the selected input. Refer to
the CAN Communication and Modbus Communication chapters for more information on adjusting the
setpoint via remote communication.
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