ABB RELION 650 Series Applications Manual page 140

Section 7
Current protection
IEC06000440 V1 EN-US
Figure 64: Overpower mode
The setting
setting is given in p.u. of the generator rated power, see equation 75.
Minimum recommended setting is 0.2% of S
used.
=
S
N
EQUATION1708 V1 EN-US
The setting
protection function. The setting is given in degrees. For active power the set angle should be
0° or 180°. 180° should be used for generator reverse power protection.
134
Q
Power1(2)
Power1(2) gives the power component pick up value in the Angle1(2) direction. The
× ×
3 UBase IBase
Angle1(2) gives the characteristic angle giving maximum sensitivity of the power
Operate
Angle1(2)
when metering class CT inputs into the IED are
N
1MRK 504 158-UEN A
P
en06000440.vsd
(Equation 75)
Application manual