ABB RET670 Commissioning Manual page 120

Section 10
Testing functionality by secondary injection
Now the signals TRIP1 and TRIP should be activated.
6. With reduced amplitude of the injected voltage to 0.8
is changed via ZC + (ZA – ZC)/2 to a value corresponding to half
injected current and voltage.
This is done with a speed so that the final impedance is reached after 1s. As the injected
voltage is lower than 0.92
the signal ZONE2 should be activated.
7. Set
Now the signals TRIP2 and TRIP should be activated.
Pole slip
impedance
movement
ANSI07000099 V2 EN-US
Figure 29: Setting of the pole slip protection PSPPPAM (78)
114
VBase the PICKUP signal should be activated. In addition to this
N2Limit to 1 and repeat step 6.
Zone 1
E
X'
B
d
IED
B
TripAngle
Zone 2
X
T
jX
ZA
Zone 2
ZC
Zone 1
WarnAngle
f
ZB
VBase the current amplitude and angle
IBase and 180° between the
E
A
Z
S
A
R
ANSI07000099_2_en.vsd
Commissioning manual
1MRK 504 154-UUS B