Contents
110-0084.9 / 15 NXAIR / ≤ 40 kA 5
8.4 Accessing the connection compartment through the switching-device compartment at panel versions with
ventilation system type II.................................................................................................................... 129
8.5 Accessing the connection compartment through the switching-device compartment at panel versions with
voltage transformer compartment ....................................................................................................... 133
9 Accessing the connection compartment through the rear ............................................................ 140
9.1 Accessing the connection compartment through the rear side of the panel .......................................... 141
9.2 Accessing the connection duct through the rear side of the panel ........................................................ 146
10 Electrical connections ..................................................................................................................... 149
10.1 Checking the contact surfaces ........................................................................................................... 149
10.2 Cutting the rubber sleeves to size ...................................................................................................... 150
10.3 Use of cable lugs ............................................................................................................................... 151
10.4 Cable clamps .................................................................................................................................... 152
10.5 Cable sealing ends ............................................................................................................................ 153
10.6 Dimensions of single-core cables ....................................................................................................... 154
10.7 Dimensions of three-core cables ........................................................................................................ 156
10.8 Assembly of cable sealing ends for single-core cables (except for contactor panel with panel
width 435 mm)................................................................................................................................... 157
10.9 Assembly of cable sealing ends for single-core cables in contactor panel with panel width 435 mm...... 160
10.10 Assembly of cable sealing ends for three-core cables (except for contactor panel with panel
width 435 mm)................................................................................................................................... 161
10.11 Assembly of cable sealing ends for three-core cables in contactor panel with panel width 435 mm ....... 166
10.12 Connecting control cables .................................................................................................................. 171
10.13 Connecting bus wires ........................................................................................................................ 171
11 Closing the connection compartment / connection duct ............................................................... 172
11.1 Installing the vertical partition in the switching-device compartment ..................................................... 173
11.2 Installing the vertical partition and the ventilation duct type I in the switching-device compartment ........ 177
11.3 Installing the vertical partition and the ventilation duct type II in the switching-device compartment ....... 182
11.4 Installing the bushing plate, the vertical partition and the voltage transformer compartment in the
switching-device compartment ........................................................................................................... 186
11.5 Installing the rear wall on the connection compartment ....................................................................... 193
11.6 Installing the rear walls on the connection duct ................................................................................... 197
12 Final assembly work ........................................................................................................................ 199
12.1 Cleaning the switchgear ..................................................................................................................... 199
12.2 Tightening torques and control tightening torques for bolted joints .............................................................. 200
12.3 In panels without ventilation duct: Check the floor fixing in the switching-device compartment .............. 201
12.4 Checking the panel connection links ................................................................................................... 201
12.5 Checking the installation of the wiring duct covers .............................................................................. 201
12.6 Checking control cable connections ................................................................................................... 201
12.7 Checking the vertical partition between the switching-device compartment and the connection
compartment ..................................................................................................................................... 201
12.8 Checking the rear wall at the connection compartment........................................................................ 201
12.9 Checking the bushings....................................................................................................................... 201
12.10 Checking the withdrawable part on the service truck / checking the switching-device truck ................... 202
12.11 Checking the service truck ................................................................................................................. 202
12.12 Checking and completing protection against adverse environmental influences (protection against
corrosion) .......................................................................................................................................... 203
12.13 High-voltage door with ventilation flap ................................................................................................ 203
12.14 Checking assembly work ................................................................................................................... 204
12.15 Correcting circuit diagrams ................................................................................................................ 204
12.16 Installation report ............................................................................................................................... 204
13 Installation of withdrawable parts / switching-device trucks ......................................................... 205
13.1 Solenoid interlocks (optional) in the operating mechanism for withdrawable parts / switching-device trucks
......................................................................................................................................................... 205
13.2 Removing the locking bolts ................................................................................................................ 205
14 Commissioning procedure .............................................................................................................. 206
14.1 Safety instructions ............................................................................................................................. 206
14.2 Update of the firmware of protection relays ......................................................................................... 206
14.3 Drying dampness .............................................................................................................................. 207
14.4 Instructing the operating personnel..................................................................................................... 207
14.5 Checking the accessories .................................................................................................................. 207
14.6 Checking the interlocks mechanically ................................................................................................. 207
14.7 Test operation ................................................................................................................................... 208
14.8 Switching on operational high voltage................................................................................................. 209
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