ABB REG670 - Completing the Test; Out-Of-Step Protection OOSPPAM

0.2 £ f(Ucos) £ 8Hz
AND
AND
PICKUP
Z cross line ZA - ZC
Z cross line ZC - ZB
AND
AND
ZONE1
ZONE2
Counter
N1Limit
a
b
a ³ b
AND
TRIP1
Counter
N2Limit
a
b
a ³ b
AND
TRIP2
OR
TRIP
ANSI07000100_2_en.vsd
Imin > 0.10 IBase
Vmax < 0.92 VBase
d ³ PickupAngle
d £ TripAngle
ANSI07000100 V2 EN-US
Figure 47: Logic diagram of the pole slip protection PSPPPAM (78)
13.4.4.2 Completing the test
SEMOD175096-39 v2
Continue to test another function or end the test by changing the TESTMODE setting to
Disabled. Restore connections and settings to their original values, if they were
changed for testing purposes.
13.4.5 Out-of-step protection OOSPPAM
GUID-BF2F7D4C-F579-4EBD-9AFC-7C03296BD5D4 v8
The out-of-step protection (OOSPPAM (78)) function in the IED can be used for both
generator protection and as well for line protection applications.
The main purpose of the OOSPPAM (78) function is to detect, evaluate, and take the
required action during pole slipping occurrences in the power system.
The OOSPPAM (78) function detects pole slip conditions and trips the generator as fast
as possible, after the first pole-slip if the center of oscillation is found to be in zone 1,
which normally includes the generator and its step-up power transformer. If the center
of oscillation is found to be further out in the power system, in zone 2, more than one
1MRK 502 073-UUS A Section 13
Testing functionality by secondary injection
Generator protection REG670 2.2 ANSI and Injection equipment REX060, REX061, REX062 159
Commissioning manual