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ABB NAL Series User Manual
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46
MOUNT
ING AND
OPERA
TION
MANUAL
INDOO
R AI
R SWI
TC
H-DISC
ONN
ECT
OR, NAL
/NALF
/VR
—
92 B
e
for
e mo
unt
in
g on t
he A
-
m
ec
ha
nis
m
sh
af
t, s
et up d
is
ta
nc
e to ~4
-
8 mm
—
93 M
ou
nt
in
g of st
an
da
rd m
oto
r dr
iv
e for
NAL/NALF/VR on
A-
mechanism
—
94 M
o
unt t
he s
ta
nd
ard m
oto
r dr
i
ve fo
r NA
L
/N
AL
F
/
V
R/ o
n th
e
sh
af
t an
d ti
ght
en m
ou
nt
in
g scr
ew
s wi
th 2
5 [
Nm] to
rq
ue
.
45
47
Table of Contents
Default Chapter
4
Table of Contents
4
Adjustment of the Hand Operating, Mechanism Type HE
24
K-Mechanism. Fig.32
24
A-Mechanism. Fig
25
Hand Operating Mechanism NEMD
26
Application
26
Rated Data
26
Working Conditions
26
Design and Principle of Operation
27
Versions Available
27
Replacing the Mechanism on the Switch
28
Test Operation of A-Mechanism
29
Mounting of Fuse-Base
30
Mounting of the Fuse Tripping. Fig
31
Fuse Tripping
31
Mounting of Earthing Switch Type E
32
Mounting of Earthing Switch Type E/EB (Fig.47)
32
Mounting the Earthing Switch to the Switch- Disconnector Type NAL/VR
32
Mounting the Earthing Switch to the Fuse- Switch Disconnector Type NALF/VR
33
Mounting the Mechanical Interlock between Switch-Disconnector and Earthing Switch. Fig
33
Testing the Interlock
33
Mounting the Shunt Release
34
Mounting the Auxiliary Switch
35
Auxiliary Switch for Switch-Disconnector
35
Connection of the Auxiliary Circuits
35
Mounting the Auxiliary Switch for E-EB Earthing Switch. Fig
37
Mounting the Auxiliary Switch for Fuse Interruption
39
Mounting the Open Fuse Auxiliary Switch on Motor Bracket
42
Motor Drive
44
Mounting of NM/MU Motor Drive
44
Motor Drive Settings for A-Mechanism
45
17.3 Motor Drive Settings for K-Mechanism
47
Uemc
48
Service and Maintenance
49
Cleaning
49
Switch-Disconnector in Service
49
Mechanical Overhaul
50
Electrical Overhaul in Service
50
Control of NAL/VR Knives after Mounting. Fig
51
Replacement of Parts (12-24 Kv)
54
Replacement of Contact Knife with Draw Bar. Fig.110
55
Pivot Side Support Insulator. Fig
55
Replacement of Fixed Contact on the Opening Side Fig
56
Replacement of the Arcing Chamber. Fig
56
Replacement of Insulators
57
Hollow Insulators with Arcing Chamber. Fig
57
Insulator for Fuse-Base and Quick Make Earthing Switch
57
21.0 Replacement of Parts in NAL/VR 36 Kv
58
Replacement of Contact Knives
58
Replacement of Draw Bar
59
Replacement of the Supporting Insulator. Fig
59
Replacement of the Hollow Insulator. Fig
60
Replacement of the Piston with Piston Rod
60
Fig. 121
60
22.0 Adjustment of Splined Shaft End for Earthing Switch
61
Fig. 122- 126
62
Shaft End for Earthing Switch.
62
Liabilities
62
Reference List of Fuses
63
Environmental Declaration
68
25.1 Environmental Certification Life Expectancy
68
End-Of-Life
68
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Mounting And Operation Manual
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ABB NAL Series Specifications
General
Brand
ABB
Model
NAL Series
Category
Switch
Language
English
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