ABB Modures LZ92-1 - Page 15

Line
angle
90
80
70
60
50
40
30
20
10
0
1.15
1.15
1.15
1.15
1.15
1.15
1.15
1.15
1.15
1.15
Characteristic
Circle
XB 0,57 XA
1.11
1.08
1.04
1
0.94
0.92
0.87
0.83
0.79
0.75
0.98
0.94
0.89
0.88
0.85
0.84
0.84
0.83
0.85
0.88
Lense
XB = 0,57 XA
0.95
0.88
0.82
0.76
0.72
0.67
0.64
0.61
0.59
0.58
Table 3.7 - Relative reach in relation to characteristic and line angle for
a three-phase fault
Line
angle
<p
[ 0]
L
--
90
80
70
60
50
40
30
20
10
0
,__
(referred to the reach of a circle about the origin for a
phase-to-phase fault)
Characteristic
Circle Circle
Lense
Lense
XB = XA
XB = 0,57
XA
XB = XA
XB = 0,57
XA
-
-
1.15
1.11
0.98
0.95
1.15
1.08 1.0
0.94
1.15
1.06 1.0
0.93
1.15
1.04 1.03
0.93
1.15
1.02
1.05
0.95
1.15
1.01 1.08
0.97
1.15
1.0 1.11
0.98
1.15
1.0 1.12
1.0
1.15
1.0 1.16
1.02
1.15 1.0
1.21
1.05
·-
Table 3.8 - Relative reach in relation to characteristic and line angle for
a three-phase fault
(referred to the reach of the same characteristic for a
phase-to-phase fault)
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