ABB RED670 Relion 670 series, Commissioning Manual

Page: 141 / 308

Test point Reach Value Comments
9 X –0.8 x RLdFw
set
x tan(ArgDir=20°)
–0.8 x RLdFwd
set
x
tan(ArgDir=20°)
R 0.8 x RLdFw
set
10 X 0.17 x (2 x X1
set
+ X0
set
) Exact: 0.5 x (2 x X1
set
X0
set
)/3
R -0.36 x (2 x X1
set
+ X0
set
) Exact: 0.5 x (2X1
set
+ X0
set
)/(3 x
tan(AgNegDir=30°)
11 X 0.27 x (2 x X1
set
+X0
set
) Exact: 0.8 x (2 x X1
set
+ X0
set
)/3
R –0.57 x (2 x X1
set
+ X0
set
) Exact: 0.8 x ( X0set)/(3 x
tan(AgNegDir=30°)
12 X 0.5 x (2 x X1
set
+ X0
set
)/3
R 0.5 x (2 x R1
set
+ R0
set
)/3
13 X 0
R RFPEZx
11.4.7.1 Measuring the operating limit of set values
GUID-3FA4B640-38E7-406E-8FCC-8DEDABB024C4 v4
Procedure:
1. Subject the IED to healthy normal load conditions for at least two seconds.
2. Apply the fault condition and slowly decrease the measured impedance to
find the operating value of the phase-to-phase fault for zone 1 according to
test point 1 in figure
33 and table 30 . Compare the result of the measurement
with the set value.
3. Repeat steps 1 to 2 to find the operating value for test points 2, 3 in table 30
Observe that the zones that are not tested have to be blocked and the zone that
is tested has to be released.
4. Repeat steps 1 to 3 to find the operating value for the phase-to-earth fault L3-
E according to figure 34 and table 31 .
Test points 8, 9, 10 and 11 are intended to test the directional
lines of impedance protection. Since directionality is a
common function for all six measuring zones, it is only
necessary to test 8, 9, 10 and 11 once, in the forward direction
in order to test the accuracy of directionality (directional
angles). Directional functionality testing (trip inside, no-trip
outside) should always be made for all impedance zones set
with directionality (forward or reverse).
11.4.7.2 Measuring the operating time of distance protection zones
GUID-BB93C603-F43E-40CB-8EFA-3B0F280C011D v5
Procedure:
1MRK 505 378-UEN A
Section 11
Testing functionality by secondary injection
Line differential protection RED670 2.2 IEC 135
Commissioning manual