ABB SGF, Instruction Manual

Page: 7 / 156

Figure 59 : Mounting of earthing switch,
earthing -switch poles in series :
Mounting of earthing -switch lever (19)
and operating rod (71) if operating mechanism
for earthing switch on finger side ............................................. 71
Figure 60 : Mounting of earthing switch,
earthing-switch poles in series :
Adjustment of operating mechanism for earthing switch
if operating mechanism for earthing switch on contact side ..... 72
Figure 61 : Mounting of earthing switch,
earthing - switch poles in series :
Adjustment of operating mechanism for earthing switch
if operating mechanism for earthing switch on finger side ........ 73
Figure 62 : Mounting of earthing switch :
Mounting of earthing contact (18)
for rated voltages 36 ... 170 kV
and rated peak-withstand currents < 100 kA ........................... 74
Figure 63 : Mounting of earthing switch :
Mounting of earthing contact (18)
for rated voltages 245 ... 362kV
or rated peak-withstand currents > 100 kA
(corona-protection fitting
and for rated voltages 245 ... 362 kV) ...................................... 74
Figure 64 : Mounting of earthing switch :
Earthing contact (18), adjusting measurements ..................... 75
Figure 65 : Mounting of mechanical interlocking :
Adjusting measurement of mechanical interlocking
between disconnector and earthing switch ............................. 77
Figure 66 : Maintenance of disconnector :
Replacement of contact fingers (66) and contact pieces (67) ... 83
Figure 67 : Maintenance of earthing switch :
Replacement of earthing contact (18)
for rated voltage 36... 170 kV
and rated peak-withstand currents < 100 kA ............................ 85
Figure 68 : Maintenance of earthing switch :
Replacement of earthing contact (18)
for rated voltage 245 ... 362 kV
or rated peak-withstand currents > 100 kA ............................... 86
Figure 69 : Maintenance of earthing switch :
Contact finger dimensions
for rated voltages 36 ... 170 kV
and rated peak-withstnad currents < 100 kA ............................ 87
Figure 70 : Maintenance of earthing switch :
Contact finger dimensions
for rated voltages 245 ... 362 kV
or rated peak - withstand currents > 100 kA .............................. 87
Figure 71 : Instruction of assembly of adaptor plate................................... 88
Figure 72 : Rotational alignment of contact fingers (66)
for perfect contact on contact Piece (67).................................. 89
Figure 73 : Tilting of column for alignment................................................. 90
vi 1HDB 050016-YN-A