GE Multilin N60 Network Stability and Synchrophasor Measurement System 5-181
5 SETTINGS 5.6 GROUPED ELEMENTS
5
Figure 5–68: DIRECTIONAL POWER CHARACTERISTIC
By making the characteristic angle adjustable and providing for both negative and positive values of the minimum operating
power a variety of operating characteristics can be achieved as presented in the figure below. For example, section (a) in
the figure below shows settings for reverse power, while section (b) shows settings for low forward power applications.
Figure 5–69: DIRECTIONAL POWER ELEMENT SAMPLE APPLICATIONS
RESTRAIN
SMIN
RCA+
CALIBRATION
+
-
OPERATE
Direction
Q
P
842702A1.CDR
P
Q
OPERATE
RESTRAIN
RCA = 0
o
SMIN > 0
(d)
P
Q
OPERATE RESTRAIN
RCA = 180
o
SMIN > 0
(a)
P
Q
OPERATE
RESTRAIN
RCA = 0
o
SMIN < 0
(c)
P
Q
OPERATE
RESTRAIN
RCA = 180
o
SMIN < 0
(b)
P
Q
OPERATE
RESTRAIN
RCA = 90
o
SMIN > 0
(e)
P
Q
OPERATE
RESTRAIN
RCA = 270
o
SMIN < 0
(f)
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