Hitachi Relion 670 Series Commissioning Manual page 121

1MRK506371-UUS Rev. M
Table 34:
Test point
1
2
3
4
5
6
7
8
9
10
11
12
13
11.4.8.3 Measuring the operating limit of set values
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 and table . Compare the
result of the measurement with the set value.
3. Repeat steps
Line distance protection REL670
Commissioning manual
Test points for phase-to-ground C-G (Ohm/Loop)
Reach Value
X (2 x X1 +X0
set set
R 0
X (2 x X1 + X0
set
R (2 x R1 + R0
set
X 0.8 x (2 x X1
set
R 0.8 x (2 x R1
set
+RFPGZx
set
X 0.5 x (2 x X1
set
R 0.5 x (2 x R1
set
RFPGZx
set
X RFPGZx x tan(LdAngle)
set
R RFPGZx
X RLdFw x tan(LdAngle)
R RLdFw
X 0
R RLdFw
X –0.8 x RLdFwd x tan(AngDir)
R 0.8 x RLdFw
X –0.4 x RLdFw x tan(AngDir)
R 0.4 x RLdFw
X 0.5 x (2 x X1
set
R 0.5 x (2 x X1
set
tan(AngNegRes))
X 0.8 x (2 x X1
set
R 0.8 x (2 x X1
set
tan(AngNegRes))
X 0.5 x (2 x X1
set
R 0.5 x (2 x R1
set
X 0
R
1 to 2 to find the operating value for test points 2, 3 in table .
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Comments
)/3
)/3
set
)/3
set
+ X0 )/3
set
+ R0 )/3
set
+ R0 )/3
set
+R0 )/3 +
set
+ X0 )/3
set
+ X0 )/ (3 x
set
+X0 )/3
set
+ X0 )/ (3 x
set
+ X0 )/3
set
+ R0 )/3
set
Section 11
Testing functionality by secondary injection
GUID-24FEBCE7-3409-4204-AA15-A1E0A1605866 v4
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