ABB Relion REG670, Commissioning Manual

Page: 127 / 262

Test point Reach Value Comments
7 X 0
R RLdFw
set
8 X –02143 x RLdFw
set
Exact: 0.8 x RFPE x tan (ArgDir=20°)
R 0.8 x RLdFw
set
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 RFPE
12.4.7.1 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
43 and table 27 . 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 27
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 44 and table 28 .
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).
12.4.7.2 Measuring the operating time of distance protection zones
GUID-BB93C603-F43E-40CB-8EFA-3B0F280C011D v5
Procedure:
1MRK 502 067-UEN B Section 12
Testing functionality by secondary injection
121
Commissioning manual