ABB Relion 670 Series Applications Manual page 193

1MRK 511 358-UUS A
Set value
A
B
C
The function has two stages that can be set independently.
With the parameter
The function gives trip if the power component in the direction defined by the setting
larger than the set pick up power value
IEC06000440 V1 EN-US
Figure 87: Overpower mode
The setting
setting is given in p.u. of the generator rated power, see equation 87.
Minimum recommended setting is 0.2% of S
Application manual
Mode
OpMode1(2) the function can be set Enabled / Disabled .
Q
Power1(2)
Power1(2) gives the power component pick up value in the Angle1(2) direction. The
Formula used for complex power calculation
*
= × ×
S 3 V I
A A
EQUATION2044 V1 EN-US
*
= × ×
S 3 V I
B B
EQUATION2045 V1 EN-US
*
= × ×
S 3 V I
C
C
EQUATION2046 V1 EN-US
Power1(2)
Operate
Angle1(2)
when metering class CT inputs into the IED are used.
N
P
en06000440.vsd
Section 7
Current protection
(Equation 84)
(Equation 85)
(Equation 86)
Angle1(2) is
187