Table Of Contents - ABB NAL Series Mounting And Operation Manual
Indoor air switch-disconnector
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Also See for NAL Series:
- Installation and operating instructions manual (72 pages) ,
- Mounting and operation manual (32 pages)
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Triple-pole switch-disconnector type NAL/VR
and fuse switch-disconnector type NALF/VR for indoor
installation
1.0
Safety instructions .............................................................4
2.0
equipment ........................................................................4
3.0
4.0
Installation .........................................................................4
4.1
Preparation of the switch for installation. ............................4
4.2
Preparation of the supporting structure ..............................4
4.3
Installation of the disconnector ..........................................5
5.0
5.1
K-mechanism ....................................................................5
A-mechanism ....................................................................5
5.2
6.0
Mounting the mechanism on the switch .............................6
6.1
Test operation of A-mechanism .........................................6
7.0
Mounting the hand operating mechanism type HE .............7
7.1
mechanism HE. .................................................................7
Mounting of fuse base .....................................................11
8.0
8.1
The switch must be open and the main springs
not charged .....................................................................11
8.2
Mounting of the fuse tripping ...........................................11
8.3
Adjustment of the fuse tripping ........................................12
8.4
Fuse tripping. Control ......................................................13
9.0
type LCES .......................................................................13
9.1
-disconnector type NAL/VR .............................................13
9.2
-disconnector type NALF/VR ...........................................13
-disconnector and eartch switch ......................................13
11.0 Mounting the shunt release .............................................14
12.0 Mounting the auxiliary switch ...........................................14
earthing switch, excluding LCES ......................................15
14.0 Mounting of NM motor drive ............................................18
15.0 Service and maintenance ................................................22
16.0 Replacement of parts (12-24 kV) .....................................24
16.1 Replacement of contact knife with draw bar ....................24
16.2 Replacement of fixed contact on the opening side ...........25
17.0 Replacement of the arcing chamber ................................25
18.0 Replacement of insulators ...............................................25
18.1 Hollow insulators with arcing chamber .............................25
18.2 Pivot side support insulator ..............................................25
20.0 Changing parts in NAL/VR 36 kV .....................................26
20.1 Changing contact knives .................................................26
20.2 Changing draw bar ..........................................................27
20.3 Changing the supporting insulator ...................................28
20.4 Changing the hollow insulator ..........................................28
20.5 Changing the piston with piston rod ................................29
21.0 Technical specification for NAL/NALF/VR switch-
-disconnectors NAL/VR 12 - 17.5 - 24 - 36/6 - 12.5 A - K ..29
22.0 Reference list of fuses ......................................................30
23.0 Environmental declaration ................................................31
NAL/NALF/VR - Mounting and operation manual 3
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