Figure 64 : Mounting of earthing switch : Earthing contact (18), adjusting measurements
Pole distance
Operated pole : a
Operated pole : b
Operated pole : c
20
0
0
10
10
10
0
0
20
30
0
0
15
15
15
0
0
30
40
0
0
20
20
20
0
0
40
I (recommended presetting on poles a, b, c during mounting)
2 000 ... 2 999 mm 3 000 ... 3 999 mm 4 000 ... 4 999 mm
I (after
mounting)
a
mm
b
mm
c
mm
a
mm
b
mm
c
mm
a
mm
b
mm
c
mm mm
max. 5
(on one pole
of 3-pole
group)
Rated voltage 36 ... 170 kV,
and rated peak - withstand current < 100 kA
Rated voltage 245 ... 362 kV,
and rated peak - withstand current > 100 kA
I = distance between rear contact finger (20)
and stop (21) of earthing contact (18)
75/113
1HDB 050016-YN-A
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