ABB RELION REL670, Installation And Commissioning Manual

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92
Distance protection Chapter 11
Verifying settings by secondary
injection
The table showing test points for phase to earth loops is used together with figure 28 .
8
9
10
11
12 X=0
R= RFFwPE
Note! This test points is proposed to be used instead of
point 4, 5 and 6 when shaped load characteristic is not
activated
(OperationLdCmd=OFF)
Test point Value Comments
X 0.2 tan( ) RLdFw ArgLd
= ⋅ ⋅
R 0.2 RLdFw
= ⋅
X 0.346 RLdFw
≈ ⋅
]
[
2
X 0.2 1 XN
3
X
= ⋅ ⋅ +
]
[ 2
R 0.2 1 XN tan( 90 )
3
X AngNegDir
= ⋅ ⋅ + ⋅ − °
]
[
X 0.231 1 XN X set
≈ ⋅ +
]
[
R 0.108 1 XN X
≈ ⋅ +
]
[
2
X 0.85 1 XN
3
X
= ⋅ ⋅ +
] [
2
R 0.85 1 XN tan( 90)
3
X ArgNegDir
= ⋅ ⋅ + ⋅ −
]
[
X 0.981 1 XN X
≈ ⋅ +
]
[
R 0.458 1 XN X
≈ ⋅ +
]
[ 2
X 0.2 1 XN
3
X
= ⋅ ⋅ +
]
[
2
R 0.2 1 XN
3 tan(60 )
X
= ⋅ +
⋅ °
]
[
X 0.231 1 XN X
≈ ⋅ +
]
[
R 0.133 1 XN X
≈ ⋅ +