Hitachi RED670 Commissioning Manual page 139

1MRK 505 378-UEN Rev. K
Pole slip
impedance
movement
IEC07000099 V2 EN-US
Figure 39:
Line differential protection RED670
Commissioning manual
Zone 1
E
X'
B
d
IED
B
TripAngle
ZB
Setting of the pole slip protection PSPPPAM
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Zone 2
X
T
jX
ZA
Zone 2
ZC
Zone 1
WarnAngle
f
Testing functionality by secondary injection
E
A
Z
S
A
R
IEC07000099_2_en.vsd
Section 11
133