Hitachi Relion 670 Series Applications Manual page 151

1MRK511407-UUS Rev. N
IEC06000441 V1 EN-US
Figure 70:
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 0.2% of S
=
S
N
EQUATION2047 V1 EN-US
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°. 0° should
be used for generator low forward active power protection.
Phasor measurement unit RES670
Application manual
Q
Power1(2)
Operate
Underpower mode
× ×
3 VBase IBase
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Angle1(2)
en06000441.vsd
when metering class CT inputs into the IED are used.
N
P
Section 8
Current protection
(Equation 68)
145