ABB REC650 - Page 149

Operate
Angle1(2)
Power1(2)
P
Q
en06000440.vsd
IEC06000440 V1 EN
Figure 60: Overpower mode
The setting Power1(2) gives the power component pick up value in the Angle1(2)
direction. The setting is given in p.u. of the generator rated power, see equation 68.
Minimum recommended setting is 1.0% of S
N
. Note also that at the same time the
minimum IED pickup current shall be at least 9 mA secondary.
N
S 3 VBase IBase= × ×
EQUATION2047 V1 EN (Equation 68)
The setting Angle1(2) gives the characteristic angle giving maximum sensitivity of the
power 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 in 50Hz
network while -179.5° should be used for generator reverse power protection in 60Hz
network. This angle adjustment in 60Hz networks will improve accuracy of the power
function.
1MRK 511 286-UUS A Section 6
Current protection
143
Application manual