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PowlVac 1200A
Powell PowlVac 1200A User Manual
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01.4IB
.51000C
P
o
wlV
ac
®
M
etal-
C
lad S
wit
chgear
5kV & 15kV
, 1200A, 2000A, 3000A, & 4000A F
or
c
e C
o
oled
P
o
w
ere
d b
y S
a
fet
y
®
Courtesy of NationalSwitchgear.com
2
Table of Contents
Default Chapter
5
Table of Contents
5
Ch 1 General Information
11
S Cope
12
P Urpose
12
I Nstruction B Ulletins a Vailable E Lectronically
12
Associated B Ulletins
13
Ch 2 Safety
14
S Afe W Ork C Ondition
14
S Afety G Uidelines
14
G Eneral
15
S Pecific
15
S Afety Abels
15
Ch 3 Equipment Description
16
G Eneral
16
Figure 1 Metal-Clad Switchgear Line-Up
16
D Imensions
17
One-High Construction
17
Two-High Construction
17
Primary Compartment
17
Figure 2 One High Basic Construction
17
Figure 3 Two-High Basic Construction
17
S Econdary C Ompartment
18
Table a Standard Dimensions
18
Atings
19
Ighting I Mpulse W Ithstand (Bil)
19
Table B Ratings of Medium Voltage Powlvac® Metal-Clad Switchgear
19
Ircuit Reakers
20
Figure 4 Interior Metal-Clad Switchgear (Lower Compartment)
20
Figure 5 Front Cover of Circuit Breaker
20
Ircuit B Reaker R Acking M Echanism
21
S Afety I Nterlocks and P Rovisions
22
Key Interlocks
22
Circuit Breaker Compartment Safety Provisions
22
A Uxiliary C Ompartments
23
A Nti -C Ondensation H Eaters
23
Figure 6 Circuit Breaker Cover Removed
23
Figure 7 Unit Space Heater
23
Oltage Otential Ransformer Ollout Arriage
24
F Use Disconnecting D Evice (R Ollout C Arriage )
24
Figure 8 Voltage Transformer and Rollout Carriage
24
Figure 9 Control Power Transformer (Rollout Carriage)
24
C Urrent T Ransformers (T Hrough -T Ype )
25
Ain Us
25
Ain B Us , M Ain B Us T
25
P Rimary D Q. L Ighting
26
A Nd S Upports
26
Ch 4 Installation
27
G Eneral
27
R Eceiving
27
Andling
27
S Torage
28
Figure 10 Lifting Method for Switchgear
28
P Reparation of F Loor -A Nchoring
29
P Ositioning the M Etal -C Lad Switchgear
30
Drawings and Diagrams
30
Figure 11 Recommended Floor
30
D Oor a Lignment
31
Figure 12 Anchoring of Units with Channel Base
31
T He R Emovable E Lement
32
Figure 13 Circuit Breaker with Shipping Bracket
32
Figure 14 Auxiliary Device with Shipping Bracket
32
G Rounding
33
C Onnections
34
Figure 15 Ground Bus Splice Plate Connection
34
Ain B Us Assembly and I Nsulation
35
Main Bus Joint Insulation
35
Figure 16 Placing the Boot over the Joint
35
Table C Bolt Torque Values
35
Wrapping of Joints
36
Figure 17 Boot Installation
36
Table D Bus Wrapping Components
36
Figure 18 Insulation of Bus Bar
37
Figure 19 Single Bus Bar Connection Joint
37
Table E Insulation of Bus Bar
37
Table F Insulation of Single Bus Bar Connection Joint
37
Figure 20 Double Bus Bar Connection Joint
38
Figure 21 Tee Connection Joint
38
Table G Insulation of Double Bus Bar Connection Joint
38
Table H Insulation of Tee Connection Joint
38
Applying Bus Insulating Boots
39
Incoming Power Connections
39
Cleaning Bus Insulation
39
P Rimary C Ables
39
I Nsulating P Rimary C Able T Erminations
40
Figure 22 Cable Termination Joint
40
Table I Cable Termination Joint
40
G Round F
41
Figure 23 Bar-Type Current Transformer Joint Insulation
41
Table J Bar-Type Current Transformer Joint Insulation
41
C Ontrol C Ables
42
S Urge P Rotection
42
R Oof E Ntrance B Ushing
42
B Us D Uct E Ntry
43
Figure 24 Roof Bushing
43
Table K Pothead, Bushing, or Terminator
43
A Uxiliary D Evice R Ollout C Arriage
44
Control Power Transformer Rollout
44
Fuse Rollout
44
Figure 25 Angle Shipping Bracket
44
Figure 34 Position Interlock
44
Ch 5 Operation
45
G Eneral
45
I Nserting the Emovable Lement Nto the Ompartment
45
Inserting the Circuit Breaker into the Lower Compartment (One-High Design)
46
Inserting the Circuit Breaker into the Upper Compartment (Two-High Design)
46
Acking M Echanism
47
Acking P Rocedure (M Anual )
47
Figure 26 Recommended Method for Lifting Circuit Breaker to Upper Cell
48
Figure 27 Closed Door Racking
49
Inserting the Circuit Breaker to the Test/Disconnected Position
50
Secondary Disconnecting Device
50
Figure 29 Standard Circuit Breaker in Test Position
51
Figure 30 Pushing Manual Trip Operator & Accessing Racking Drive Shaft
51
Figure 32 Anti-Rollout Latch
51
Inserting the Circuit Breaker to the Connected Position
51
Connected Position
52
Figure 31 Racking the Standard Circuit Breaker
52
Removing the Circuit Breaker from the Test/Disconnected Position out of the Circuit Breaker Compartment
53
Acking
53
Shutters
54
Figure 35 Typical Compartment Door with Closed Door or
56
Figure 36 Lower Mechanism-Operated Cell Switch (MOC) and
57
Figure 37 Upper Mechanism-Operated Cell Switch (MOC) and
58
Table L Rated Control Power Voltages & Ranges for Circuit Breakers
60
Figure 38 4000A Force Cooled Section Views
66
Table M Accessories
68
Table N Lift Trucks
69
4
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Powell PowlVac 1200A Specifications
General
Brand
Powell
Model
PowlVac 1200A
Category
Industrial Electrical
Language
English
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