ABB REL670 - Resetting LEDs, Lockout, and Temperature Functions

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
X0.2 tan
()
R
LdFw Ar
g
Ld=⋅ ⋅
R0.2
R
LdFw=⋅
X 0.346 RLdFw
≈
⋅
]
[
2
X0.2 1XN
3
X=⋅⋅ +
]
[
2
R0.2 1XNtan( 90)
3
X AngNegDir=⋅⋅ + ⋅ −°
]
[
X0.231 1 XNXset≈⋅ +
]
[
R0.108 1XNX≈⋅+
]
[
2
X0.85 1XN
3
X=⋅⋅+
]
[
2
R0.85 1XNtan( 90)
3
XArgNegDir=⋅⋅+⋅ −
]
[
X0.981 1XNX≈⋅+
]
[
R0.458 1XNX≈⋅+
]
[
2
X0.2 1XN
3
X=⋅⋅ +
]
[
2
R0.2 1XN
3tan(60)
X=⋅+
⋅°
]
[
X0.231 1XNX≈⋅+
]
[
R0.133 1XNX≈⋅+