Toshiba VK Series User manual

Document
:
GF
077670
TOSHIBA
INSTRUCTIONS
OPERATION
-
MAINTENANCE
Type
VK
Series
Vacuum
Circuit
Breakers
5
kV
APPLICABLE
TYPE
FORMS
(
1200
A
)
(
2000
A
)
VK
-
6
M
32
B
VK
-
6
M
32
B
1
VK
-
6
M
32
B
2
VK
-
6
M
32
B
3
VK
-
6
P
32
B
1
This
manual
was
written
for
the
Toshiba
type
form
circuit
breakers
listed
on
this
page
used
in
a
"
fixed
"
application
.
For
circuit breakers
utilized
in
the conversion
of
other
equipment
,
a
supplemental
instruction
manual
should be obtained
from
the
conversion
manufacturer
.
NOTE
:
Issued
2
/
95
Courtesy of NationalSwitchgear.com

INTRODUCTION
Page
i
READ
THIS
MANUAL
carefully
for
important
information
about
safety
,
handling
,
installation
,
operation
,
maintenance
,
and
parts
replacements
for
spring
-
operation
-
type
,
VK
series
vacuum
circuit
breakers listed
in
this manual
.
This manual and all
accompanying
drawings
should
be
considered
a
permanent part
of
the
equipment
.
They
should be
readily
available
for
review
and
reference
at
all
times
.
DIMENSIONS
shown
in
the manual
are
metric and
/
or
their U
.
S
.
equivalent
.
INQUIRIES
should be addressed
to
:
Field
Service
Department
Toshiba
International
Corporation
13131
West Little
York
Road
Houston
,
Texas
77041
USA
Telephone
:
(
713
)
466
-
0277
(
800
)
231
-
1412
(
800
)
527
-
1204
(
Canada
)
(
713
)
466
-
8773
Fax
:
Use
only
Toshiba
-
authorized
replacement
parts
.
This
equipment
is
designed
and
built
in
accordance with
applicable
safety
standards
in
effect
on
the date
of manufacture
.
Unauthorized
modifications
will
void
warranty
and
can
result
in
severe
injury
,
death and
property
damage
.
Do
not
make
any
modifications
to
this
equipment
without the written
approval
of
Toshiba
.
®
TOSHIBA
INTERNATIONAL
CORPORATION
,
1995
Courtesy of NationalSwitchgear.com

i
(
Courtesy of NationalSwitchgear.com

TABLE
OF
CONTENTS
Page
ii
SAFETY
RECEIVING
,
STORAGE
AND
HANDLING
.
.
.
Receiving
and
Unpacking
Acceptance Inspection
Lifting
for
Handling
and
Moving
Storage
Inspection
During
Storage
GENERAL
DESCRIPTION
Safety
Devices
Interlock
Lever
Secondary
(
Control Circuit
)
Terminals
INSTALLATION
Service
Conditions
Rating
PRE
-
ENERGIZATION CHECK
General
Electrical
Checks
1
4
4
4
5
6
6
7
8
8
8
9
9
9
11
11
11
OPERATION
12
Manual
Operation
Electrical
Operation
Control Circuit
Operation
Closing
Sequence
Charging
Sequence
Tripping
(
Opening
)
Sequence
Mechanism
Operation
Closing
Charging
Tripping
Trip
Free
12
13
13
13
13
13
19
19
19
19
19
MAINTENANCE
Maintenance
Program
Maintenance Record
Servicing
Equipment
Inspection
and Maintenance
Types
.
.
Inspection
and Maintenance Intervals
Maintenance
and
Inspection
Chart
. .
Wipe
Measurement
Vacuum
Check
Troubleshooting
Guidelines
Replacement
of
Parts
Auxiliary
Switch
Closing
Coil
and
Trip
Coil
.
. .
Control Circuit
Board
Control
Circuit
Board Fuse
.
. .
Replacement
Parts List
CONVERSIONS
Automatic
Spring
Discharge
VMD
Interlock
Pin
Primary
Conductors
Rating
Nameplate
WARRANTY
and
LIMITATION OF
LIABILITY
20
20
20
21
22
24
25
27
28
31
34
35
39
41
43
45
46
47
48
49
49
49
50
Courtesy of NationalSwitchgear.com

(
Courtesy of NationalSwitchgear.com

SAFETY
Page
1
IMPORTANT
MESSAGES
Read this
manual
and
follow
its
instructions
.
Signal
words such
as
DANGER
,
WARNING
and
CAUTION
will
be
followed
by
important
safety
information
that
must
be
carefully
reviewed
.
Indicates
a
situation
which
will
result
in
death
,
serious
injury
,
and
severe
property
damage
if
you
do
not
follow
instructions
.
A
DANGER
Means that
you
might
be
seriously
injured
or
killed
if
you
do
not
follow
instructions
.
Severe
property
damage might
also
occur
.
A
CAUTION
:
Means that
you
might
be
injured
if
you
do
not
follow
instructions
.
Equipment
damage might
also
occur
.
NOTE
:
Gives
you
helpful
information
.
SAFETY CODES
Comply
with
all
applicable
state
and local
codes
.
Unless
superseded
by
state
and local
codes
,
adhere
to
all
applicable
ANSI
,
OSHA
,
IEEE
,
NEMA
and National Electrical
Code
(
NFPA
70
)
and Maintenance Procedures
in NFPA
70
B
standards
.
This includes standards
pertaining
to
the
manufacture
,
assembly
,
installation
,
grounding
,
maintenance
,
conversion
,
rating
and
operation
of
:
1
)
Metal
-
clad
switchgear
2
)
Power
switchgear
3
)
Metal
-
clad and station
type
cubicle
switchgear
4
)
AC
high voltage
circuit
breakers
5
)
Requirements
for
Conversion
of
Power
Switchgear
Equipment
Courtesy of NationalSwitchgear.com

SAFETY
READ
ALL
SAFETY
SIGNS
Safety
signs
are
placed
on
the
circuit
breaker
for
your
safety
and
instruction
.
A
DANGER
Read
and
follow
the
instructions
in
this
manual
and
on
the
safety
signs
located
on
the
equipment
.
DO
WOT
REMOVE
.
DESTROY
,
OR
COVER
THB
LABEL
READ
THE
INSTRUCTION
MANUAL
CAREFULLY
BEFORE
INSTALLING
,
OPERATMG
.
OR
SERVICING
TM
$
EOUFMENT
HAZARDOUS
VOLTAGE
WBJ
Cause
Smrv
Injury
.
Otrtfk
.
ft
*
.
Keep
the
safety
sign
visible
and
in
good
shape
.
H
#
TrfpCkw
*
Removal
And
taatttfton
Never
remove
,
damage
,
or
cover
any
safety
sign
.
•
Disconnect
and
lock
Out
Pvtmvy
aid
fn
Piece
Safety
Jnteriocfcs
MOVING
PARTS
AND
POWERFUL
SPRINGS
Can
Result
In
Lost
of
Rngart
or
Umfcs
•
Oo
Not
Piece
Yov
Hands
or
any
Pvt
of
Your
Body
Inside
This
Equfemewt
WhBa
Motor
Shows
'
CHARGED
*
or
CLOSED
*
.
•
Discharge
Springs
Complete
*
Bates
Senncing
To
Diechaige
Springe
:
In
Disconnect
Poslbn
,
BUTTON
.
Than
CLOSING
BUTTON
And
TRIP
BUTTON
Agm
Papraaa
TRIP
FOR
REPLACEMENT
INSTRUCTION
MANUALS
OR
TECHNICAL
ASSISTANCE
CALL
1
>
SOO
>
231
>
1412
TOSHIBA
INTERNATIONAL
CORPORATION
SAFETY
INSTRUCTIONS
READ
INSTRUCTION
MANUAL
BEFORE
ATTEMPTING
THE
FOLLOWING
PROCEDURES
MANUAL
OPERATING
PROCEDURE
:
TO
CHARGE
SPRINGS
:
Remove
Charging
Handle
Socket
Cover
and
Insert
Charging
Handle
into
Socket
Opening
,
Rachel
Handle
Up
and
Down
Until
A
Click
is
Heard
And
Spring
Indicator
Reads
CHARGED
(
Yellow
)
.
Ratchet
Handle
No
Further
.
Remove
Handle
and
Replace
Socket
Cover
.
TO
CLOSE
BREAKER
:
Push
the
CLOSING
BUTTON
.
Circuit
Breaker
Indicator
Will
Then
Read
CLOSED
(
Red
)
and
DISCHARGED
(
White
)
.
Push
the
TRIP
BUTTON
.
Circuit
Breaker
Indicator
Will
Then
Read
OPEN
(
Green
)
and
DISCHARGED
(
White
)
.
The
Following
Can
Result
in
Equipment
Damage
.
Depression
Of
The
CLOSING
BUTTON
With
The
Circuit
Breaker
CLOSED
.
Depression
Of
The
CLOSING
BUTTON
With
The
INTERLOCK
LEVER
Raised
.
Depression
Of
The
CLOSING
BUTTON
With
The
TRIP
BUTTON
Depressed
.
TO
OPEN
BREAKER
:
NOTE
:
INSTALLATION
Or
REMOVAL
:
INDICATORS
Must
Read
DISCHARGED
(
White
)
And
OPEN
(
Green
)
Before
The
Breaker
Can
Be
Installed
Into
Or
Removed
From
The
Cell
(
Cradle
)
.
Courtesy of NationalSwitchgear.com

SAFETY
Page
3
QUALIFIED
OPERATORS
ONLY
Only
qualified
persons
are
to
install
,
operate
or
service
this
equipment
according
to
all
applicable
codes
and
established
safety
practices
.
A
qualified
person
must
:
1
)
Carefully
read
the
entire
instruction
manual
.
2
)
Be
skilled
in
the
installation
,
construction
or
operation
of
the
equipment
and
aware
of
the
hazards
involved
.
3
)
Be
trained
and
authorized
to
safely
energize
,
de
-
energize
,
clear
,
ground
,
lockout
and
tag
circuits
in
accordance
with
established
safety
practice
.
4
)
Be
trained
and
authorized
to
perform
the
service
,
maintenance
or
repair
of
this
equipment
.
5
)
Be
trained
in
the
proper
care
and
use
of
protective
equipment
such
as
rubber
gloves
,
hard
hat
,
safety
glasses
,
face
shield
,
flash
clothing
,
etc
.
in
accordance
with
established
practices
.
6
)
Be
trained
in
rendering
first
aid
.
Courtesy of NationalSwitchgear.com

Page
4
RECEIVING
RECEIVING
AND
UNPACKING
The
circuit
breaker
units
are
subjected
to
factory
production
testing
prior
to
being
packed
and
shipped
.
ACCEPTANCE
INSPECTION
Confirm
that
the
circuit
breaker
unit
is
complete
,
correct
as
specified
and
undamaged
from
shipment
and
handling
.
Upon
receipt
of
the
equipment
,
do
the
following
:
1
)
Make
an
immediate
inspection
for
damage
which
might
have
occurred
during
shipment
(
Fig
.
1
)
.
If
damage
is
discovered
,
it
should
be
noted
with
the
carrier
prior
to
accepting
the
shipment
,
if
possible
.
Fig
.
1
Inspect
for
Damage
2
)
Carefully
unpack
the
equipment
sufficiently
to
check
for
missing
parts
or
concealed
damage
.
3
)
Keep
the
equipment
upright
(
Fig
.
2
)
.
A
CAUTION
:
Never
lay
the
equipment
on
its
side
or
upside
down
.
This
may
cause
equipment
damage
to
occur
.
4
)
File
a
claim
with
the
carrier
for
any
damaged
or
missing
items
and
immediately
notify
the
nearest
Toshiba
International
Corporation
representative
.
Do
not
install
or
energize
equipment
that
has
been
damaged
.
Damaged
equipment
can
fail
during
operation
,
resulting
in
fire
and
explosion
.
Fig
.
2
The
Circuit
Breaker
should
be
kept
Upright
5
)
If
the
circuit
breaker
has
been
utilized
for
the
conversion
of
other
equipement
,
see
the
CONVERSIONS
Section
of
this
manual
.
Confirm
that
your
conversion
manufacturer
is
in
compliance
with
this
section
.
Courtesy of NationalSwitchgear.com

RECEIVING
Page
5
LIFTING
FOR
HANDLING
AND
MOVING
When
handling
and
moving
the
circuit
breaker
,
the
suspension
technique
shown
in
this
section
may
be
used
.
Care
and
caution
should
be
used
when
handling
the
circuit
breaker
units
to
avoid
damage
to
the
equipment
and
personal
injury
.
Always
keep
the
circuit
breaker
in
a
generally
upright
position
.
A
CAUTION
:
When
lifting
,
the
circuit
breaker
will
tilt
slightly
backwards
.
Stand
clear
of
the
breaker
when
lifting
or
you
may
be
injured
.
Fig
.
3
Lifting
the
Circuit
Breaker
with
Lifting
Hooks
.
Always
use
lifting
equipment
suitable
for
handling
the
weight
of
the
unit
.
The
capability
of
the
lifting
equipment
to
handle
the
size
and
weight
of
the
circuit
breaker
should
be
confirmed
prior
to
lifting
.
A
CAUTION
:
Attempting
to
manually
lift
the
circuit
breaker
can
cause
serious
injury
or
equipment
damage
.
Always
use
suitable
lifting
equipment
.
WHEN
LIFTING
:
6
M
32
B
6
M
32
B
1
6
M
32
B
2
6
M
32
B
3
6
P
32
B
1
Lift
the
circuit
breaker
as
shown
in
Fig
.
3
and
Fig
.
4
.
Fig
.
4
Circuit
Breaker
Tilting
Backward
while
Lifting
.
Courtesy of NationalSwitchgear.com

Page
6
RECEIVING
STORAGE
If
the
circuit
breaker
is
to
be
stored
for
any
length
of
time
prior
to
installation
,
the
following
precautions
should
be
taken
:
1
)
The
original
packing
should
be
restored
,
if
possible
.
2
)
Do
not
subject
the
equipment
to
moisture
or
sun
rays
.
Store
in
cool
,
clean
,
and
dry
location
.
3
)
Place
a
dust
cover
over
the
circuit
breaker
packaging
to
protect
against
dirt
and
moisture
.
4
)
Store
in
an
upright
position
.
Fig
.
5
Circuit
Breaker
Storage
INSPECTION
DURING
STORAGE
Routine
scheduled
inspection
is
necessary
if
storage
is
for
an
extended
period
.
The
unit
should
be
checked
for
condensation
,
moisture
,
corrosion
,
and
vermin
.
Prior
to
installation
,
the
circuit
breaker
should
be
carefully
examined
for
evidence
of
physical
damage
,
corrosion
,
or
other
deterioration
.
Refer
to
the
PRE
-
ENERGIZATION
section
of
this
manual
.
The
MAINTENANCE
section
of
this
manual
describes
various
types
of
inspections
recommended
for
this
circuit
breaker
during
the
operation
period
.
Courtesy of NationalSwitchgear.com

GENERAL
DESCRIPTION
Page
7
The
Toshiba
VK
series
medium
voltage
circuit
breakers
in
this
manual
are
designed
for
applications
at
utilization
voltages
of
5
kV
and
interrupting
ratings
250
MVA
.
The
circuit
breakers
are
intended
for
use
only
in
metal
-
clad
distribution
switchgear
and
other
limited
applications
.
Fig
.
6
,
Fig
.
7
,
and
Fig
.
8
illustrate
and
identify
various
components
of
the
circuit
breaker
.
COMPONENTS
LEGEND
:
1
)
Handle
for
moving
circuit
breaker
Secondary
terminals
Interlock
lever
Grounding
lug
Primary
conductor
Barrier
Mounting
angle
Wheel
Vacuum
interrupter
Flexible
conductor
Insulated
operation
rod
2
)
Fig
.
6
Front
View
3
)
4
)
5
)
6
)
7
)
8
)
9
)
10
)
11
)
Use
only
genuine
Toshiba
replacement
parts
and
accessories
.
Improper
components
could
cause
the
circuit
breaker
to
malfunction
.
Fig
.
7
Side
View
NOTE
:
When
utilizing
the
mounting
angle
,
remove
and
rotate
180
°
.
Fig
.
8
Rear
View
Courtesy of NationalSwitchgear.com

Page
8
GENERAL
DESCRIPTION
SAFETY
DEVICES
Safety
interlocks
and
guards
are
provided
as
an
integral
part
of
the
equipment
design
.
These
devices
are
provided
for
your
safety
.
A
DANGER
Never
Defeat
,
Modify
or
Bypass
any
Safety
Devices
,
interlocks
,
or
operating
mechanism
.
This
would
make
the
equipment
unsafe
.
Fire
,
explosion
,
severe
injury
,
death
,
and
property
damage
could
occur
.
Do
not
operate
this
equipment
unless
all
covers
and
panels
are
in
place
.
Fig
.
9
Interlock
Lever
INTERLOCK
LEVER
The
interlock
lever
(
Fig
.
9
)
on
the
right
side
of
the
circuit
breaker
front
panel
cannot
be
lifted
when
the
circuit
breaker
is
closed
.
Before
lifting
the
interlock
lever
,
verify
that
the
open
-
closed
indicator
reads
"
OPEN
"
(
green
)
.
When
the
interlock
lever
is
lifted
,
the
closing
action
is
blocked
both
electrically
and
mechanically
.
With
the
interlock
lever
up
,
the
microswitch
(
Fig
.
10
)
is
open
,
thus
electrically
preventing
the
circuit
breaker
from
being
closed
.
Fig
.
10
Interlock
Lever
Microswitch
SECONDARY
(
CONTROL
CIRCUIT
)
TERMINALS
The
secondary
(
control
circuit
)
terminals
are
located
on
top
of
the
circuit
breaker
.
These
terminal
are
used
for
the
connection
of
the
control
circuit
wiring
and
auxiliary
switching
.
Hazardous
Voltage
.
Turn
off
and
Lock
Out
Primary
and
Control
Circuit
Power
Before
Servicing
.
Do
not
allow
grease
or
any
other
conductive
substances
to
contaminate
insulating
materials
.
Contaminated
insulators
can
allow
a
short
circuit
or
ground
fault
to
occur
.
Fig
.
11
Secondary
(
Control
Circuit
)
Terminals
Courtesy of NationalSwitchgear.com

INSTALLATION
Page
9
SERVICE
CONDITIONS
Do
not
install
this
equipment
in
areas
where
unusual
service
conditions
exist
.
Using
this
equipment
in
other
than
usual
service
conditions
can
result
in
equipment
failure
.
Toshiba
VK
Series
Circuit
Breakers
are
intended
for
use
in
usual
service
conditions
as
defined
by
ANSI
.
The
temperature
of
the
air
(
ambient
air
temperature
)
surrounding
the
switchgear
should
be
between
the
limits
of
-
30
°
C
(
-
22
°
F
)
and
+
40
°
C
(
104
°
F
)
.
The
altitude
of
the
equipment
installation
should
not
exceed
3300
ft
(
1000
m
)
.
NOTE
:
Temperature
,
altitude
or
other
conditions
outside
of
the
usual
limits
may
require
de
-
rating
or
other
special
equipment
.
Contact
the
Toshiba
International
Corporation
Factory
for
additional
information
.
RATING
Prior
to
Installation
:
The
maximum
fault
current
capacity
of
the
power
system
at
the
point
of
installation
should
be
verified
.
This
value
must
not
exceed
the
symmetrical
interrupting
capability
of
the
circuit
breaker
.
Fig
.
12
illustrates
a
typical
circuit
breaker
nameplate
and
ratings
.
©
>
VACUUM
CIRCUIT
BREAKER
TYPE
VK
-
6
M
32
B
3
<
7
$
C
-
0
S
»
VOLTS
;
RANGE
.
!
?
SMC
0
-
K
0
)
V
DC
:
2
~
s
(
70
-
tjQ
;
y
oc
vci
'
s
_
_
_
__
1
FACTOR
IMPOSE
ir
.
t
.
C
0
VTW
.
OCS
AMPS
SHOET
-
OPCJir
AUPS
.
KTeRStfTlNG
“
ARTS
i
Sll
|
iST
^
Cr
!
3
«
S
SsF
.
«
0
.
1.24
7
R
?
VOLTS
'
3
ASGE
-
so
*
v
CLOSE
MC
-
TOR
COK
.
1200
C
TF
.
J
4
M
?
$
2
/
3
A
DANGER
Do
not
exceed
the
ratings
specified
on
the
circuit
breaker
nameplate
or
system
accessories
.
Underrated
equipment
can
fail
during
operation
causing
fire
,
explosion
,
severe
injury
,
death
,
and
property
damage
.
25
*
.
’
>
FREOLEKCV
iO
.
-
6
C
Hi
CATE
3
V
*
E
*
GHT
M
'
J
>
i
6
F
9
A
2153
KC
.
TOSHIBA
CORPORATION
©
329
A
2
SA
4
P
019
MADE
IN
JAPAN
Fig
.
12
Typical
Circuit
Breaker
Nameplate
To
calculate
the
required
Symmetrical
Interrupting
Capability
,
use
the
formula
in
Note
3
)
and
4
)
of
Table
1
.
All
system
accessories
such
as
surge
suppressors
,
lightning
arrestors
,
etc
.
should
be
checked
to
verify
their
ratings
capacity
.
Courtesy of NationalSwitchgear.com

Page
10
INSTALLATION
Table
1
.
RATINGS
(
Symmetrical
Rating
Basis
,
ANSI
C
37.06
)
Identification
Rated
Values
Related
Required
Capabilities
Voltage
Insulation
Level
Current
Current
Values
Type
Form
of
Breaker
Nominal
rms
Voltage
Class
Nominal
3
-
p
base
Class
(
MVA
)
Vmax
3
Sec
Short
-
time
Current
Carrying
Capability
Closing
Maximum
Symme
-
trical
biter
-
ruptmg
Capability
Rated
Maximum
Rated
Maximum
Rated
Voltage
Range
Factor
SCA
Con
-
til
ous
mis
Current
Rating
at
60
Hz
and
Rated
Withstand
Test
Voltage
Short
circuit
Latching
Capa
bflity
(
kV
)
Rated
Inter
-
rupting
Time
(
Cycles
)
Rated
rms
Voltage
Divided
rms
Par
-
Voltage
1.6
K
missable
Tripping
Delay
.
Y
(
Seconds
)
rms
Current
Rating
(
hV
>
K
Times
Rated
Short
circuit
mis
Current
(
kAJ
by
K
(
if
(
2
)
*
(
4
f
(
kV
)
(
A
)
(
at
Low
Frequency
rms
Voltage
Crest
K
Times
Rated
Short
-
cjrcurt
mis
Current
Rated
Impulse
Voltage
Max
.
kV
)
(
kV
)
(
kA
)
(
kV
)
(
kA
)
(
kA
)
(
3
)
'
6
M
32
B
6
M
32
B
1
6
M
32
B
2
6
M
32
B
3
6
P
32
B
1
250
4.76
4.16
4.16
4.16
4.16
4.16
1.24
19
1200
29
1200
29
1200
29
1200
2000
I
29
60
2
3.85
58
3
36
36
250
4.76
1.24
19
60
2
3.85
58
3
36
36
250
19
4.76
1.24
60
3
2
3.85
36
36
58
250
1.24
4.76
4.76
19
60
2
29
3
3.85
36
36
58
|
3
,
85
250
1.24
19
60
2
58
3
36
36
*
Numbers
in
parenthesis
refer
to
the
NOTES
,
below
.
NOTES
:
1
)
Maximum
voltage
for
which
the
circuit
breaker
is
designed
and
the
upper
limit
for
operation
.
Required
Symmetrical
Interrupting
(
Vmax
)
(
Vop
)
Capability
=
(
SCA
)
X
2
)
K
is
the
ratio
of
rated
maximum
voltage
to
the
lower
limit
of
the
range
of
operating
voltage
in
which
the
required
symmetrical
and
asymmetrical
interrupting
capabilities
vary
in
inverse
proportion
to
the
operating
voltage
.
3
)
To
obtain
the
required
symmetrical
interrupting
capability
of
circuit
breaker
at
an
operating
voltage
between
1
/
K
times
rated
maximum
voltage
and
rated
maximum
voltage
,
the
following
formula
shall
be
used
:
Where
:
SCA
=
Short
-
Circuit
rms
Current
Rating
from
Table
(
kA
)
Vmax
=
Rated
Maximum
rms
Voltage
(
kV
)
from
Table
Vop
=
Measured
operating
voltage
(
kV
)
4
)
Current
values
in
this
column
are
not
to
be
exceeded
even
for
operating
voltages
below
1
/
K
times
rated
maximum
voltage
.
For
voltages
between
the
rated
maximum
voltage
and
1
/
K
times
rated
maximum
voltage
,
follow
(
3
)
above
.
Courtesy of NationalSwitchgear.com

PRE
-
ENERGIZATION
CHECK
Page
11
GENERAL
BEFORE
ENERGIZING
THE
CIRCUIT
BREAKER
for
the
first
time
,
follow
the
procedure
below
to
verify
that
the
equipment
is
properly
installed
and
functional
.
A
supply
of
spare
parts
,
fuses
,
etc
.
should
be
established
.
Instruction
manuals
and
diagrams
should
be
collected
and
filed
.
Replace
all
parts
,
guards
and
barriers
that
may
have
been
removed
during
wiring
and
installation
.
A
DANGER
Hazardous
Voltage
.
Turn
off
and
lock
out
all
primary
and
control
circuit
power
sources
prior
to
performing
this
pre
-
energization
check
.
ELECTRICAL
CHECKS
W
\
Vh
\
:
W
\
m
Electrical
shock
hazard
.
Do
not
touch
energized
components
during
a
test
using
auxiliary
power
.
A
WARNING
Do
not
operate
this
equipment
until
a
complete
safety
inspection
has
been
made
.
An
electrical
insulation
resistance
test
should
be
performed
to
verify
that
the
circuit
breaker
and
associated
field
wiring
are
free
from
short
circuits
and
grounds
.
Refer
to
the
MAINTENANCE
Section
of
this
manual
for
additional
information
.
rrv
7
^
:
izii
?
[
cl
Do
not
energize
damaged
equipment
that
has
not
been
repaired
or
verified
.
AWARNING
Do
not
remove
,
cover
or
destroy
and
safety
signs
.
AWARNING
AWARNING
Hazardous
voltages
are
present
during
dielectric
testing
which
can
result
in
serious
injury
or
death
.
High
potential
tests
should
be
performed
only
by
qualified
personnel
.
Do
not
operate
this
equipment
until
all
panels
and
covers
have
been
replaced
.
All
blocks
or
other
temporary
braces
used
for
shipment
must
be
removed
.
Before
closing
the
enclosure
,
all
metal
chips
,
scrap
wire
and
other
debris
left
over
from
installation
must
be
cleaned
out
.
Cover
all
unused
openings
in
the
compartment
surrounding
circuit
breaker
.
Replace
all
panels
and
covers
.
All
switches
and
circuit
breakers
must
be
set
to
the
OFF
and
/
or
OPEN
position
before
energizing
incoming
power
.
Fig
.
13
Typical
Front
Circuit
Breaker
Layout
Courtesy of NationalSwitchgear.com

Page
12
OPERATION
MANUAL
OPERATION
irvyj
-
mH
Powerful
Springs
.
Do
not
place
your
hands
or
any
part
of
your
body
inside
this
equipment
while
any
indicator
shows
"
CHARGED
"
(
yellow
)
or
"
CLOSED
"
(
red
)
.
A
.
Manual
Charging
of
Closing
Spring
(
Fig
.
14
)
1
)
Remove
the
charging
handle
cover
.
Insert
the
charging
handle
into
the
opening
for
the
manual
charging
handle
.
2
)
Ratchet
the
handle
up
and
down
several
times
(
usually
7
times
)
until
a
click
(
latch
)
sound
is
heard
and
the
closing
spring
charging
indicator
changes
from
"
DISCHARGED
"
(
white
)
to
"
CHARGED
"
(
yellow
)
.
This
is
the
position
where
the
closing
spring
is
charged
and
no
further
movement
of
the
handle
is
required
.
3
)
Remove
the
charging
handle
and
replace
the
cover
plate
to
the
opening
.
The
number
of
times
the
handle
must
be
operated
depends
on
the
angle
of
handle
operation
.
B
.
Manual
Closing
Operation
Push
the
manual
closing
button
and
the
circuit
breaker
will
close
(
Fig
.
15
)
.
At
this
time
the
open
-
closed
indicator
reads
"
CLOSED
"
(
red
)
and
the
spring
charging
indicator
turns
to
"
DISCHARGED
"
(
white
)
.
A
CAUTION
:
To
avoid
equipment
damage
do
not
push
the
closing
button
(
green
)
while
the
circuit
breaker
is
closed
.
A
CAUTION
:
To
avoid
equipment
damage
do
not
push
the
closing
button
(
green
)
while
the
trip
button
(
red
)
is
depressed
.
C
.
Manual
Opening
(
Tripping
)
Operation
Push
the
red
trip
button
and
the
circuit
breaker
will
open
,
indicator
(
Fig
.
16
)
will
then
read
"
OPEN
"
(
green
)
.
Manual
Charging
of
Closing
Spring
i
)
C
K
0
r
IKllO
PEAC
THE
INS
'
IN
3
"
-
aU
:
f
.
(
i
CP
H
NOTE
:
*
ji
Dl
$
SOLVES
CHARGED
.
1
-
iJ
«
-
i
?
Circuit
Breaker
Closed
Fig
.
15
Fig
.
16
Circuit
Breaker
Tripped
Open
The
open
-
closed
Courtesy of NationalSwitchgear.com

OPERATION
Page
13
ELECTRICAL
OPERATION
A
WARNING
Powerful
springs
and
moving
gears
.
Do
not
place
your
hands
or
any
part
of
your
body
inside
the
equipment
while
the
breaker
is
charging
.
In
this
condition
,
the
external
operation
switch
CS
(
1
)
is
turned
to
the
"
CLOSE
"
position
causing
:
1
)
Circuit
IL
,
b
1
,
LCS
,
Y
-
b
,
X
-
b
,
CC
to
energize
the
closing
coil
CC
,
instantly
,
and
2
)
The
circuit
breaker
closing
time
is
30
-
40
msec
.
,
at
which
time
,
3
)
Auxiliary
switch
b
1
opens
,
4
)
Closing
coil
CC
,
de
-
energizes
,
5
)
Auxiliary
relay
Y
,
energizes
,
completing
the
anti
-
pumping
circuit
.
B
.
Charging
Sequence
At
the
same
time
the
circuit
breaker
is
closed
:
A
WARNING
Powerful
Springs
.
Do
not
place
your
hands
or
any
part
of
your
body
inside
the
equipment
while
any
indicator
shows
"
CHARGED
"
(
yellow
)
or
"
CLOSED
"
(
red
)
.
AWARNING
Check
circuit
breaker
nameplate
for
verification
of
proper
operating
voltages
.
A
.
Electrical
Charging
of
Closing
Spring
Upon
applying
power
to
the
control
circuit
,
the
charging
motor
will
immediately
start
.
When
the
spring
is
charged
,
the
closing
spring
charging
indicator
turns
from
"
DISCHARGED
"
(
white
)
to
"
CHARGED
"
(
yellow
)
,
and
the
motor
stops
.
The
spring
charging
is
now
completed
.
B
.
Electrical
Closing
Operation
When
the
closing
switch
is
turned
to
"
CLOSE
"
position
,
the
closing
coil
will
be
immediately
energized
and
the
circuit
breaker
will
close
.
The
open
-
close
indicator
will
then
read
"
CLOSED
"
(
red
)
.
After
the
closing
of
the
breaker
,
the
charging
motor
will
immediately
begin
to
charge
the
closing
springs
.
The
open
-
closed
indicator
will
read
"
CLOSED
"
(
red
)
and
closing
spring
charging
indicator
will
read
"
CHARGED
"
(
yellow
)
.
C
.
Electrical
Opening
(
Tripping
)
Operation
When
the
trip
switch
is
turned
to
"
TRIP
"
position
,
the
trip
coil
will
be
immediately
energized
and
the
circuit
breaker
will
open
,
with
the
open
-
closed
indicator
reading
"
OPEN
"
(
green
)
.
1
)
Limit
switch
,
LS
,
closes
2
)
Control
Relay
X
,
energizes
3
)
Circuit
LS
,
LS
,
X
-
a
,
M
,
X
-
a
,
F
is
completed
,
and
4
)
Charging
motor
runs
(
for
about
4
sec
)
When
closing
spring
is
charged
:
1
)
Limit
switch
,
LS
,
opens
.
2
)
Control
relay
X
,
de
-
energizes
.
C
.
Tripping
(
Opening
)
Sequence
The
tripping
of
the
circuit
breaker
involves
only
the
a
1
,
TC
circuit
.
When
the
external
operation
switch
CS
(
2
)
is
turned
to
the
"
TRIP
"
position
:
1
)
Trip
coil
,
TC
,
energizes
,
and
2
)
Circuit
breaker
opening
or
tripping
time
is
15
-
20
msec
.
At
which
time
:
1
)
Auxiliary
switch
A
1
,
opens
2
)
Trip
coil
,
TC
,
de
-
energizes
CONTROL
CIRCUIT
OPERATION
A
.
Closing
Sequence
The
schematics
shown
in
Fig
.
17
thru
Fig
.
22
reflect
the
condition
where
:
1
)
Charging
is
complete
,
and
2
)
The
circuit
breaker
is
open
.
NOTE
:
For
circuit
breakers
with
different
voltage
combinations
for
closing
,
tripping
or
charging
,
consult
Toshiba
International
Corporation
for
the
particular
schematic
.
NOTE
:
The
closing
spring
immediately
begins
charging
when
the
control
circuit
is
energized
.
Courtesy of NationalSwitchgear.com

OPERATION
Page
14
P
2
-
T
“
P
3
”
T
“
P
1
|
I
Ai
A
,
CCS
13
h
h
I
Y
i
57
B
1
15
13
55
59
9
5
1
—
LS
I
I
L
“
LS
LCS
D
1
0
©
iiD
2
bi
IZ
X
-
a
B
4
R
4
II
I
Sift
1
*
D
bl
:
za
5
1
“
ai
:
Za
2
±
;
A
3
Zm
4
Y
-
b
Y
-
b
QR
3
“
X
lR
2
|
R
2
ssJ
-
6
u
D
A
-
C
1
x
-
b
©
.
.
.
i
^
D
3
t
Q
F
!
I
D
4
59
62
16
14
56
BO
10
6
I
±
_
_
-
L
_
N
2
“
N
3
Fig
.
17
30
-
48
VDC
Control
Circuit
Schematic
(
VK
-
6
M
32
B
)
P
2
-
T
~
P
3
~
T
-
P
1
]
I
A
,
CC
523
A
,
CCSI
;
D
I
-
i
-
i
?
Y
i
51
55
59
53
57
61
15
13
9
5
I
l
LS
T
X
-
1
L
I
L
=
Z
LS
6
Ml
ZLCS
Zbl
i
R
4
R
4
?
?
0
I
m
2
-
1
-
a
3
rza
4
;
TD
2
2
?
01
;
Zb
4
Zia
5
^
zt
)
5
a
1
1
Y
-
b
Y
-
b
Dr
3
z
£
C
1
X
-
b
-
r
~
X
-
a
D
3
n
*
,
cc
,
05
!
r
D
4
16
14
52
56
SO
54
56
62
10
6
±
-
_
_
L
_
N
2
“
N
3
Fig
.
18
100
-
125
VDC
Control
Circuit
Schematic
(
VK
-
6
M
32
B
)
Courtesy of NationalSwitchgear.com

Page
15
OPERATION
P
2
-
T
"
P
3
|
P
'
1
r
—
i
,
CC
52
D
CC
51
^
!
b
i
57
51
15
13
55
59
9
5
I
LS
I
X
,
L
I
L
“
LS
XLCS
01
0
i
k
02
Y
62
r
1
rz
a
?
ZZ
x
-
a
61
I
R
4
04
i
~
Yb
3
if
64
r
~
a
5
-
£
65
±
;
a
3
±
za
4
T
-
;
R
1
R
1
0
;
Y
-
6
Y
-
b
QR
3
X
IR
2
IR
2
B
>
D
0
D
C
1
X
-
6
©
-
r
-
X
-
a
A
03
n
©
L
F
i
i
!
!
T
04
t
5
B
62
16
14
56
60
10
6
.
I
±
-
L
_
N
2
~
N
3
Courtesy of NationalSwitchgear.com