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

(
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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