GTE SYLVANIA SSPB 800 Assembly instructions
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SS.PB
'Circuit".Brea.kers
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800 -1600
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2000
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Amp Frames ·
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Courtesy of NationalSwitchgear.com
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CONTENTS
I.
Delivery
of Equipment
1.
Receiving
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2.
Installation of separately shipped elements
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.•••.
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3.
Storage
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4.
Handling
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••••••••••••••••••••
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II,
Operation
1,
Manual
breakers
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,
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.
2.
Electric
Breakers
...................................•..
3,
Safety
tripping
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.
4.
Antl·pumping
and
control characteristics , . ,
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••..............
5.
Auxiliary
circuits (Cradle/Element)
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,
........•...••...
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6.
Auxiliary
circuits
(Devices)
, . ,
.•.....
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....•
, • ,
•.........
7.
Arrangement of
c1:1bicle
door
....•.••
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••.................
8.
Static
sensors
...............
, ,
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,
...........
.
9.
Setting static
trip
sensors
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.
10.
Current
sensors
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11.
Padlocking
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,
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, , . ,
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.
12.
Key
Interlocks , , , . , , . ,
.......
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13.
Devices
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••••••••••••••••
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•••••••••
111.
Maintenance
1
1
1
1
2
2
2
2
3
3
3
3
4
4
4
4
6
1.
Frequency
of
inspection
........................
,
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2.
Arc
chutes
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,
..............
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~...
. . 6
3.
Poles
, , ,
......•
,
•.............
,
....
, . . . . . . . . . . . . . . . 6
4.
Breaker
pole
assembly
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5.
Auxiliary
contacts
.....
·
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·· ·
6.
Devices
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7,
Lubrication
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··"·-·-
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!V.,.Adjustments
and
Inspections
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8-12
V,
Replacement
Procedure
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13-16
Vl.
R.epl~cementParts
List
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17
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19
VI
I.
Tables
and
Curves
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20-23
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Courtesy of NationalSwitchgear.com
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INSTALLATION
-
OPERA
TING-
MAINTENANCE
INSTRUCTIONS
SSPB
BREAKERS
800-1600-2000
AMP
FRAMES
The complete
SSPB
line encompasses frame sizes
from
800 to 4000 amperes,
up
to 600 volts A.C.
Basic
sub-assemblies include the operating mech-
anism, contact structures,
arc
chutes, and static
trip
device.
The operating mechanism offers a choice of either
manual for
local
control, or electrical for remote
operation. A stored energy principle of operation
is
utilized for either type.
I.
DELIVERY
OF
EQUIPMENT
1.
Receiving
CAUTION:
Each
shipping section
of
switchgear
has
been
palletized to facilitate
moving.
The shipping
section
is
covered with a transparent plastic cloth
. to inhibit entrance of
foreign
particles
and
permit
carrier awareness of shipping contents.
·immediately upon receipt
of
equipment, examine
components making note of
any
damages
incurred
in
transit.
If
necessary, immediately
file
a
claim
with the delivering carrier
and
notify your Sylvania
representative
..
2.
Installation of Separately Shipped Breakers
Insert
racking
handle into
cell
being
installed with
breaker
and
turn counterclockwise until cradle
is
in
withdrawn position.
White
lines
surrounding
collar of withdrawing
device
indicate cradle
position. Three white
lines
visible
ahead
of
cell
frame or front of closed door indicates cradle
is
in
isolated position.
In
this position, the two tele-
scopic
rails
should
be
fully withdrawn to accept
the breaker element.
Remove
breaker element
from
shipping carton
in
the manner outlined under "Handling". After a
visual
inspection for damage, mount element on
rails
locating holes
in
the breaker support over the
four mounting metric bolts
(8
mm
-
0.
7
mm
thread). Secure element to
rails
with
lock
washers
and
8
mm
metric nuts
using
a
13
mm
metric wrench
or
Y,
inch
open end wrench.
3. Storage
Breakers
and equipment not installed for imme-
The drawout breaker .elements are
secured to their cradles installed
in
the switchgear
assembly.
In
order to withdraw the element, it
is
first necessary to remove the two bottom shipping
bolts holding the orange shipping plates
to
the
stationary cradle.
With
these bolts
removed,
the
breaker
may
be
cranked (counterclockwise)
to
its
open
position
and
then
fully
withdrawn.
In
the
withdrawn position, the remaining four shipping
bolts and orange plates should
be
removed
and
discarded.
·diate
use
must
be
stored
in
a ventilated
room
and
protected from dust and water
by
means
of non-
absorbent covering.
4. Handling
Although the
SSPB
circuit breakers include
high
precision components, they
will
only remain
reliable
if
handled with care.
Never
rest the element
on
the contact
jaws.
The
breaker element must always
be
laid
on
a clean,
flat surface either upright or
on
its
side.
The
breaker
can
be
easily and safely transported on a
lift truck. For transporting
in
this manner, a pallet
must
be
used.
Toward the top of the
side
plates of the breaker
element,
lugs
(two on
each
side)
are provided for
lifting. Never lift element
by
its
contact
jaws
or
its static trip sensor box.
- 1 -
Courtesy of NationalSwitchgear.com
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).
II.
OPERATION
1. Manually Operated Breakers
With
the
manually operated SSPB breaker, a simple
rotary motion
of
the
operating handle
in
the
counterclockwise direction for approximately
90
degrees charges
the
springs for a close-open opera·
tion. Rotation clockwise back
to
its normal vertical
position initiates
the
spring release for closing.
The
closing speed
is
completely independent
of
the
operator. A position indicator located on
the
front
escutcheon indicates
the
position
of
the main
contacts: red for
"on"
or
"closed",
green for
"off"
or
"open.
The breaker may be tripped manually by depress-
ing the manual trip
button.
Through linkages, this
action causes
the
mechanism trip latch
to
be dis-
placed collapsing
the
operating springs and thereby
opening the breaker contacts.
If breaker
is
equipped with a lock-out device
or
undervoltage release, refer
to
paragraph 4 operating
instructions.
2. Electrically Operated Breakers
) For electrical operation, a fractional horsepower,
high-torque gearmotor provides energy for charging
the
springs. Charging requires approximately 5
seconds. Recharging takes place automatically after
the
breaker
is
closed. A limit switch removes
the
gearmotor supply voltage
at
the
end
of
travel. The
supply voltage at
the
motor
terminals may be
between
90
to
110%
of
the
rated voltage.
After
the
springs are charged,
the
closing springs
are held by an electromagnetically operated latch.
When
the
breaker
is
closed by depressing
the
manual close
button
located
on
the
front escutch·
eon
the
closing latch
is
displaced, thereby col-
lapsing
the
springs and closing
the
main contacts.
This action·
is
initiated with remote closing by
energizing the electromagnet.
The breaker may be manually tripped locally
or
electrically tripped
f<rom
remote locations.
In
the event
of
power loss, it
is
possible,.,, n•anual-
ly
charge
the
springs
of
an electricaily operated
breaker for close-open operation.
The
emergency
operating handle
is
identical
in
appearance
to
the
handle used
on
manually operated breakers. The
method
of
spring charging differs from
the
manual·
ly
operated breaker
in
that
the
handle
is
rotated
back and forth through approximately
25
degrees
until there
is
no
apparent
spring resistance
to
the
operator. To fully charge
the
springs manually
requires approximately 15 reversals
or
oscillations
of
the
handle.
The control panel
or
front
escutheon differs from
the
manually operated breaker
in
that
two
push
buttons
are furnished,
one
for initiating closing
of
main contacts (red) and
one
for opening (green).
In
addition, a spring indicator
is
included (yellow)
for charged, and (black) for discharged condition.
3.
Safety Tripping
If
the
breaker
is
inserted
or
withdrawn with its
main contacts
in
the
closed position, a mechanical
linkage automatically trips
the
breaker before
separation
of
the
main contacts during withdrawal
or
before closing
of
the
main contacts during
insertion. The same device prevents
the
closing
of
the
breaker between positions'test'and'service'.
4.
Anti-Pumping and Control Characteristics
Anti-pumping its assured
in
both
the
local and
remote control operations.
If
the
local close
button
is
held depressed
or
a remote closing signal main·
tained, it will be necessary
to
interrupt this action,
after tripping breaker,
to
effect a subsequent
closing.
If
tripping
is
a result
of
overload
or
short circuit
current
and
the
breaker
is
equipped with a local
reset lockout device, it
is
necessary
to
completely
depress
the
trip
button
in order
to
effect a sub·
sequent closing.
By
padlocking
the
local trip
button
in
a depressed
position, it
is
impossible
to
close the breaker
locally
or
remotely, since
the
latch holding
the
(
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(-
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Courtesy of NationalSwitchgear.com
...
)
(.
· charged closing springs
cannot
be released.
Maintaining a remote tripping signal nullifies
any
remote
or
local closing action. It
is
possible
to
depress
the
local close
button
causing the closing
spring
to
release; however,
the
main contacts will
not
close until
the
remote tripping signal
is
re·
moved. Should it be desired
to
prevent accidental
closing when
the
local trip
button
is
released, an
undervoltage release device with lockout must
be
used for remote tripping.
Where electrically operated breakers equipped with
an undervoltage release are closed by a
constant
signal, there are
two
possible methods
of
operating,
depending upon
whether
the closing electro·
magnet and undervoltage release are energized by
the same source
or
separate sources.
Common Source: Voltage drops · breaker trips
Voltage restores · breaker
automatically closes
Separate Source: Voltage drops · breaker trips
Voltage restores · breaker re·
mains open
The closing signal
must
be momentarily removed
in
order
to
reclose
the
breaker.
If
a closing signal
is
maintained even when
the
closing spring
is
dis·
charged,
the
breaker will automatically close
at
the
completion
of
spring charging. This would
occur
where voltage
is
applied simultaneously
to
the
charging motor and closing electromagnet.
The
latch keeping
the
closing spring charged
cannot
be
released if the breaker
is
in
the
closed position.
5. Auxiliary Circuits (Cradle/Element)
The
SSPB
breaker can be equipped with a maxi-
mum of 24 secondary isolating contacts. Each
con·
tact
is
designed
to
accept
two
Y.."
quick disconnect
lugs
per terminal.
The secondary isolating blocks may contain up
to
twenty-four (24) terminals, twelve (12)
on
each
side, which may be used for breaker operation and
alarm circuits. Internal wiring
of
breakers
is
num·
bered
in
conformity with standard wiring diagrams.
The terminals
of
the
secondary
or
stationary iso·
lating contacts on
the
cradle are arranged and con-
nected
in
a manner
to
permit
interchangeability
of
similar elements.
Six terminals
of
the
secondary isolating block are
.3.
required
to
operate electrically operated breakers,'
Two
of these terminals are made
continuous
through
the
test-service position
in
order
to
pro-
vide power for
the
spring charging motor.
The
remaining four are for closing and tripping.
In
some applications, it may be necessary
to
e,lectrically connect
the
breaker
in
the
cradle
service position
differe~tly
from
that
in
the
test
position. This can be accomplished
by·
removing
the
test
or
service terminal. After
the
fixed second·
ary isolating
contact
block has been removed,
it
is
only necessary
to
remove
the
terminal
by
un·
screwing
the
fixing screw and breaking
the
bridge
between
the
test and service contacts
at
the
neck
provided for this purpose.
To
protect the auxiliary wires from physically
coming
in
contact
with moving parts when
the
breaker
is
being inserted
or
withdrawn, an enclosed
passage, located
at
the
point
of
exit from
the
stationary isolating terminal block,
is
provided.
6. Auxiliary Circuits (Devices)
Auxiliary contacts may be added
as
an accessory
either
on
electrically
or
manually operated
breakers. A built-in time differential
of
15 milli·
seconds
is
available between
contact
group posi-
tions
1-8
and 9-16 for sequence logic.
Contact
positions 9-16 act simultaneously with main
contacts.
7. Arrangement
of
Cubicle Door
The cubicle door for
drawout
air circuit breaker
elements
is
provided with
·&n
opening permitting
entry
of the control board
or
front
escutcheon
plate. A retracting collar surrounding
the
escutch·
eon plate permits the operator
to
rack the breaker
element from the service position
to
the test
or
fully open position without opening the cubicle
door. It
is,
therefore, possible
to
store breakers
without
fear
of
unauthorized personnel having
access to them.
8.
Static Sensors
Static
sensors consists
of
separate printed circuits
for
long time, short time, instantaneous,
and
ground fault tripping. Components are pre-aged
and
factory calibrated
to
insure utmost tripping
accuracy.
No
field calibration
is
required. Since
cards have been designed
for
plug-in field installa·
tion,
it
Is
possible
to
change systems by simply
"··
f
Courtesy of NationalSwitchgear.com
...
·ordering cards from your nearest Sylvania office.
When
ordering ground fault, it
is
necessary
to
. indicate whether the system
is
three or four
) wire.
On
a four
wire
system, a neutral
CT
will
be
furnished with the
logic
card. This
CT
must
be
installed
in
the neutral bus and wired to the
)
·· breaker
in
accordance with included instructions.
The
ground fault
logic
card includes a retractable
target that indicates tripping under ground fault
conditions.
9.
Setting of Static Trip Sensors ,
In
order to prevent damage
to
static sensor
pins,
the
following
procedure should
be
followed when
selecting or
changing
sensor settings.
1.
Loosen
two bottom screws holding trans-
parent plastic shield.
2.
Raise
shield to clear bolt heads
and
lift
out.
3.
Select
values
of sensors desired.
4.
Place
thumb and forefinger on shorting bar
and
pull
bar forward until shorting pins are
cleared.
5.
Raise
or lower shorting bar to pre-selected
sensor value.
6.
Return shorting bar to pins until
fully
reseated.
7.
Replace
protective shield and tighten
screws.
10. Current Sensors
Multi-ratio window type current transformers
mounted at the rear of the circuit breaker element
provide
signal
source for the static trip sensors.
Since these sensors for initiating breaker trip
derive
·
all
necessary energy from the current monitored,
no
external energy source
is
required. (Any other
accessory for breaker tripping must
tie
provided
with a separate power source.)
To change tripping
range
of breaker, transpose one
wire on
each
of three current transformers. Termi·
nals
are marked to indicate primary current setting.
When
making this change
on
a four wire system
with ground fault indication,
it
is
necessary to
change the current transformer located
in
the
neutral
bus
(rear of switchboard) accordingly.
11. Padlocking
Al
I
SSPB
breakers
are
provided with means for
using
a maximum of three padlocks (1/4" to 3/8"
shackels)
to
lock the breaker
in
the opened or
tripped position.
To
apply
padlo.0ks,
it
is
necessary
to place the breaker
in
the tripped position
by
depressing the
local
trip buton.
While
holding the
trip button depressed, withdraw horizontal
bar
located adjacent to trip button
and
apply padlocks.
With
this bar withdrawn, the trip button
is
held
in
the depressed position, thereby preventing
closing.
12.
Key
Interlocks
If
the cradle
is
provided with a
key
interlock, the
following procedure should
be
followed for
locking
the breaker out:
Withdraw breaker element to fully disconnect
position
by
turning crank counterclockwise to
stop.
(Th
is
operation
may
be
performed
with
cell
door opened or closed.) Turn
key
in
(.
Courtesy of NationalSwitchgear.com
cylinder to remove.
If
key
will
not rotate
in
cylinder, turn cradle crank approximately
15
degrees
to permit alignment.
When
stops
are
aligned, key will rotate for removal.
With this interlocking
system,
it
is
possible to
re-
move the element from the cradle for either
maintenance or replacement
without
permitting
element insertion until the key
has
been
returned
to
the key cylinder block.
13. Optional Devices
Shunt Trip
IS.
T.) This
device
will trip the breaker
Control
Board
Trip
Button
Manual
Handle
when energized by a voltage source
of
65%
to
130 %
of
rated voltage. An auxiliary contact in
series
with the coil
opens
and
removes
supply
voltage when breaker
is
open.
Undervoltage Trip
(U.
V.)
When
the voltage source
drops below
30%
of
rated
voltage, the breaker
is
tripped. In the region
of
30%
to
60%
of
rated-
voltage, tripping may
or
may
not
occur.
No
trip-
ping action
will
occur when the supply voltage
is
60%
to
100%
of
rated voltage. · '
Stationary
Contacts
Lifting
Lugs
Solld State
Control
Moving
Secondary
l$olatlng
Contacts
Auxlllarv
Contact
Blocks
Solid
State Trip Actuator
(SX)
Fixed
Secondary
Isolating
Contacts
·5-
Safety
Shutter
(optional)
Courtesy of NationalSwitchgear.com
'i
Ill.
MAINTENANCE
1. Frequency
The frequency
of
maintenance depends essentially
on
the
conditions
of
service
of
the
breaker, fre·
quency
of
operation, fault tripping, relative humid·
ity, or presence of dust,
The mechanical endurance of
the
breaker
is
20,000
operations with the main contacts being guaranteed
for
the
life of
the
breaker. Arc chutes and
the
arcing contacts are guaranteed a minimum of
1500
make-break operations
at
the
nominal
current
and voltage (0.2
to
unity
power factor), 10 make·
break operations
at
10
times rated current,
or
3
make-break operations
at
rated short circuit.
To insure performance, it
is
recommended
that
breakers be inspected every six
months
if exposed
to
dust, every
3000
operations or every six
months
if
left idle.
.In
general, breakers should be inspected
at
least once a year.
2. Arc chutes (Fig, 5)
Remove arc chute by depressing
or
raising back
part
of
retaining lever
61
and rotating clockwise
)90 degrees. Lift arc
chute
upwards clearing arcing
horns.
e
'
'
'
"
0
0
Fig, 6
Wipe
the insulating surfaces clean with a dry piece
of cloth. The two insulating barriers covering
the
inside of the arc
chute
walls may be blackened. In
that
case, they can be wiped clean
of
carbon
deposits
to
restore
them
to
their original quality.
At the end of
3000
make-break operations
at
rated
.) current,
or
10 times
at
rated current,
or
3 times
at
, rated short circuit,
it
is
recommended
that
the
arc chutes be dismantled and
the
insulating barriers
turned around so as
to
have fresh surfaces facing
the
arc. This operation enables doubling
the
life
of
the
arc chutes. After two cycles,
it
is
necessary
to
replace
the
arc chutes.
3. Poles (Fig. 6)
Insulating barriers are located on each side of
the
arcing area for each pole. With a piece
of
clean, dry
cloth, wipe barriers
to
remove any deposits.
0
Fig.
6
Close breaker and check gap setting
of
arcing
horns.
If
gap
exceeds 1.5mm (0.059 inches), adjust
contacts by loosening bolt
#VI
(Fig.
6)
setting gap
to
0.9mm ±
0.1
mm
(0.035 ±
0.004
inches) and
tightening bolt by torquing
to
0.8mm·kg. (5.8 lb.
ft.). Remove both fixed and movable arcing
horns along with insulating barriers when thickness
of
arcing pads erodes
to
approximately 0.5mm
(0.020 inches).
Main contacts may have spots on them without
affecting
the
breaker. These contacts can be
cleaned with a very fine emory cloth and thorough,
ly
wiped
to
remove any particlls'.
Do
not
replace
main contacts as they are guaranteed for
the
life
of
the
breaker.
With drawout breakers, clean
the
main isolating
contacts
of
the
breaker and
the
corresponding
cradle contacts with a piece
of
clean cloth soaked
in trichlorethylene. Apply a light coat of Sylvania
SSPB-01 grease
to
the cleaned surfaces.
4.
Breaker Element Pole Assembly (Fig. 7)
The
pole assemblies are maintained under 0.4
m-Kg. (2.9 lb.-ft.) pressure by each
of
six bolts
(three per side) located on
the
outside surface
of
the
breaker element. They may be identified
as
being painted red. Torque each bolt for correct
tightness.
I'
\,;;.
(
Courtesy of NationalSwitchgear.com
(:
. I
''
A
A:B±1
B
Fig
•.
7
5. Auxiliary Contacts (Fig. 8)
The auxiliary contacts located on the front right
hand
side
of
the element should not
be
cleaned
or adjusted, A faulty relay should
be
replaced by
placing
the breaker contacts
in
the closed position
and
removing
hold-down screws
V3.
Auxiliary con-
tacts
are
only found on electrically operated
breakers
as
a standard
item
since one of the
contacts
are
required for isolating the shunt trip
coil
when
the breaker
is
open.
6.
Devices
Under voltage, shunt trip, and solid-state trip
devices
do
not require maintenance.
In
case
of
failure, replace the complete device.
..
Fig, 8
7. Lubrication
A breaker normally lubricated and operating
in
a
dust-free
and
non-corrosive atmosphere regularly
over a period
of
two years can undergo its normal
cycle
mechanical
endurance without any lubri-
cating.
As
such
ideal
service conditions are hardly
encountered,
it
is
advisable to check periodically
the lubricating, particularly when unusual ceasing
or friction
is
observed
during inspection.
-7-
All
rubbing
surfaces (metal to
metal)
are to
be
lubricated
with
a thin
film
of high-temperature,
high-pressure
lubricant equal to Sylvania
SSPB-01.
Hardened
grease
and
dirt should
be
removed
by
use
of trichlorethylene solvent. The
main
shaft,
trip rod, intermediate manual control shaft,
free-
return
charging
spring and gear train for electrical
operation
do
not require lubrication
since
they are
provided
with
sealed
bearings.
Do
not lubricate any
releases
or
grounding terminal.
Courtesy of NationalSwitchgear.com
IV.
ADJUSTME'.NTS
AND
INSPECTIONS
r •
r_
following
adjustmer;its
and
inspections
were
..,~rformed
at
the factory following installation
o.f
variol.ls
accessories.
These procedures
may
be
followed
for
field
odjustment and inspections,
reali;::ing
that tolerances
are
based
upon
the
life
of
normal
mechanical
endurance for
breakers.
For
normal
service,
the limits of
admissible
wear
has
been.
included,
When
these limits
are
reached,
it
is
necessary
to either readjust the components
to the
dimensions
shown,
or
to
repl<1ce
com·
ponents
if
these
dimensions cannot
be
met.
A,
CRADLE
ACCE:SSORY
l.
Lfmlt
switch for position
Indication
(1$00A
and
2000A
frtim"IS
only)
a,
Service
position (Fig. 9),
Adjust
screw
(1
Ol
to
insure
operation
of the limit switch 3
mm
± 0.5 (0.118
±
0.020
Inches)
before the
service
position stop. (Eliminate
play
by
pulling
on
telescopic
rails
while
making
adjustments.
~
Fig.
9
b.
Test
position
Adjust
the
support (11)
and
the
two
screws
(12)
to insure the operation
of
the
limit
switch 3
mr'n
(0.
11
a
inches}
before
the test position
In
the direction
of
withdrawal. (Eliminate
play
by
pushing
on
rail
while
making
adjust·
ment).
c.
Isolated
position
Adjust
the support (
11)
and
the
two
screws
(
12)
to insure operation of the
limit
switch 2
mm
(0.079
inches)
before
the stop of the isolated position.
(Eliminate
play
by
pushing
on
rail
when
making
adjustments).
B.
CIRCUIT
BREAKER
1.
BreakerAssembly (F
lg,
1
OJ
a.
Tightening
of
pole
aS11embly
Tighten
six
screws
(
1)
painted
torquing to 0.4
m-kg
(2.9 lb..ft,),
A
AoB±•
B
Fig,
10
2.
Pole (Fig.
11)
a.
Adjustment of
arcing
contacts
red,
With
breaker
in
closed
position,
loosen
bolt
(:3)
and
gap
arcing
contacts to
0,9
•tp®
\
(_
1
O.ll:i:01I
'
\ '
Fig.
11
±
0,
1
mm
(0.036
±
0,004
inches).
Tighten
bolts
torquing ta
0.9
m-kg
(5.8
lb.-ft.).
NOTE:·
All
arcing
contacts
of
the
same
pole
must
be
within
0.1
mm
(0.004
inches)
of
each
other.
LIMIT
OF
WEAR:
1.5
r:nm
(0,059
inch),
b.
Torquing
requirernents
1)
Flexible
braid
(7)
800
amp
-
0,8
m·kg
(5.8 lbs.-ft.)
1600-2000
arnp
-
1.3
m-kg
(9.4
lbs.·ft.)
~.'.
. .
''.
\,/
'.
"
..
'
....
..
:;.
~.
~(
',~'
'l,~~
.
';:
'
#.
~·
('
Courtesy of NationalSwitchgear.com
"
\ :
I
....
3,
Overload
and
short
circuit
release
a.
Tripping
(Fig.
12)
1)
Adjustment.
With
breaker
In
closed
position
and
release
reset,
back
off
red
nut until nearly
all
threads
are
exposed. Tighten same nut until
distance between tripping striker
(11) and
lug
(12)
of
the latch (13)
shown
in
the normal position
is
1± 0.5 mm (0.039 ± 0,020
Inches).
Fig.
12
21
Inspection.
Place
breaker
in
closed
position
and
check
to
see
that them
Is
a
minimum
clearance
of
0.5
mm
(0.020
inches)
between the tripping
striker (
11)
and
lug
I
12)
of
the
latch (13)
shown
in
the
normal
position,
LIMIT
OF
WEAR:
0,1
mm
(0.004
inches).
To
test tripping
of
breaker
by
the
release
crank, place a
wire
hook
as
shown
in
Fig.
13 and
hold
while
applying a momentary
signal
of
12-18
volts
D.C.
to
the tripping
actuator
EX.
When
release·
un-
latches,
slowly
allow
release
crank
to withdraw until breaker trips
open.
15
HOOK
'
Fig.
13
NOTE!
Restraining
release
crank
(14) while
performing
this test
results
in
the
blocking
of
resetting
which
occur$
when breaker opens
or trips. Therefore,
using
hook,
n1$tore
release
crank
to
Its
reset
and
latched position,
b. Resetting
1) Breaker equipped
with
signal
in-
dication with
memory
fqr
overload
and
short circuit
release
(with
or
without indication.)
(f!ig.
14).
a)
Adjustment.
When
breakers
are
equipped with this
accagsory,
It
is
necesS<lry
to
place
breaker
in
open position
and
adjust
screw
(16)
to effect latching the
re-
lease.
A
very
distinct click
indicates
latching.
To
Insure
a
margin
of safety,
unS<.:rew
% of
a
turn.
b) Place'
bre~ker
In
open position
and
check
to
see
that
1.6
mm
(0.059
inch)
clearance
is
avail-
able,
••
LIMIT
OF
WEAR:
Non-latch·
Ing.
l:Xl'AtMe
P0$1TION
'..lllilllilli~l;l{O
--<JJ'-.BliJ~
Pig.
14
2)
Breaksr equipped with
signal
In-
dication on
overload
and
short
cir·
cu
it tripping
with
local
resetting
(Fig's 15
and
16).
al
Adjustment.
Insert
wire
hook
as
shown
in
Fig.
13
and
hold
re-
lease
crank
(14)
while applying
momentary
signal
of
9·
18
volts
DC
to the
tripping
actuator
EX,
When
release
unlatches,
slowly
allow
release
crank
to withdraw
to
t~ipped
position
shown
ln
Fi!J.
15.
With
the
release
In
the
Courtesy of NationalSwitchgear.com
\
0
tripped position and the crank
(1
Ol
resting
ag\'llnst
stop
(20),
adjust
link
(21)
to allow 1 ±
0.5
mm
(0.039
:1:
O,O:W
inch)
clearance.
Press
the
local
trip·
ping
pushbutton (23)
while
adjusting
screw
(24) to effect
resetting of the
release.
A
distinct
click
will
be
heard
when
the
release
crank latches.
Unscrew
one turn to
insure
a
margin
of
safety
in
resetting.
Fig.
15
b)
Inspection.
With
the
breaker
in
the
open
position,
press
the
trip button
(23)
Fig.
16
and
oheok
travel
of
release
bar.
Distance
between
maximum
position
of
reset
and
latch
should
be
0.5
mm
(0.020
inch).
Check
play
between
lever
(24)
and
adjustment
screw
(24)
for
a
minimum
of
0.2
mm
(0.008 inch),
Press
the
push·
button fully to check
for
a
minimum
clearance of
0.2
mm
(Q,008
Inch)
between
lug
(12)
of
the latch (
13)
and the
bottom of the slot.
4,
Voltage Tripping Devices (Accessory)
A.
Tripping
(Fig,
17
and
18)
1)
Adjustment.
Place
breaker
In
open
position
and
unscrew adjusting
reset
screw
(30).
With
release
bar
in
latched
on
position resulting
from
breaker
being
in
open position,
adjust
linkage
(26)
to provide 1 ±
0.5
mm
(0.039 ± 0,020
inch)
between
lever
(28)
and
lug
(
12)
of
the latch (
13).
•1
O·
.
1:
PO
Bll!Q~.J
r
-::--..~
/>!'!,c·~.3""~
·-..:u
-·
'
0
~-~~t1~
5"
_,
_
__.
A~j
r~
·~
Fig,
1S
••
2)
Inspection.
Place
breaker
in
the
closed
position
and
inspect
to
see
that a
minimum
of
0,6
mm
(0.020
inch)
exists between
lever
(28
and
lug
(12)
of
the
lever
(13)
shown
in
the
normal
position.
LIMIT
OF
WEAR:
0,1
mm
(0.004
Inch).
Holding
the striking
pin
(29)
as
illustrated
In
Fig.
23,
apply
rated
voltage
to the
holding
coll,
piecing
relsass
bar
in
unlatched position.
Remove
voltage
and~allow
release
bar
ta
slowly
withdraw
observing
Fig,
17
(.
(
('
Courtesy of NationalSwitchgear.com
1.,-.
'i
breaker tripping.
NOTE:
In
order to prevent block·
ing
of
the release
bar
from
being
reS<Jt
when
breaker opens, it
is
necessary to return
release
bar to
its
latched position
by
means of
the hook illustrated
in
Fig,
23.
B.
Resetting
1)
Adjustment.
With
the breaker in·
the open position
and
the
release
bar latched
as
illustrated
in
Fig.
14,
adjust screw (30) lengthening link·
age
until stirrup
is
against stop
(29), then back off% turn.
2)
lnsp<;M;tlon.
Place breaker
in
latched
position
as
illustrated
in
Fig.
18.
Check
for minirn1.nn clearance
of
2
mm
(0.079 inch),
LIMIT
OF
WEAR~
Non-Latching
'"
Fig.
18
5.
Auxiliary Contact Block Support Adjust-
ment
(Fig,
19).
'
....
-..... 2
Fig. 19
·11
•
With
contact blocks removed, adjust nut
(32)
until distance shown
in
Fig,
19
Is
44.5 ± 0.5
mm
(1.753 t 0.020
inch).
LIMIT
OF
WEAR:
Overall
travel of auxil·
iary
contact
ahou
Id
not. exceed
0.
1
mm
(0.004
inch).
.
6.
Limit
switch
on
Trip
Rod
(Accesoory).
Limit
switch
for
signal
indication of trip·
ing
on
overload and short circuit.
A, Adjustment
(Fig.
20).
Place
breaker
in
closed
position with overcurrent
and
short circuit release bar latched.
De·
form
strip (36 to obtain: clearance
between
strip (36)
and
spring
pin
(37).
Fl~.
20
B.
Inspection.
Check
operation of micro·
switch
by
tripping breaker.
7.
limit
switch
on
voltil!)e
rele~se
(Accessory).
The
undervoltage release
device
c<1n
be
equipped with
two
separate limit switches.
One
wil
I indicate when the undervoltage
release
bar
is
latched
and
the other
will
indicate undervoltage
coil
being
energized.
A.
Limit
switch for Latch Indication.
Place
bar
In
latched position
as
shown
In
fig,
17
arid
18.
In
this position, the
limit switch contacts
will
be
closed.
Deform
strip (38)
Fig.
21
to
provide a
m<1ximum
gap
se.tting
of
1
mm
(0.039
inch)
between strip (38)
and
lug
(39).
NOTE:
This
ad)1.1stment
must
be
per·
formed
without applying
voltage
to the
undervoltage
holding
coil,
Following
adjustment, operate voltage
release
device
permitting
release
bar
to
un·
latch. Inspect limit switch to
see
that
contacts open,
"
Courtesy of NationalSwitchgear.com
··
s:
Limitswitch for Voltage Indication.
This llmitswitch
has
no
adjustments.
Check
position of contacts
by
applying
.) and
removing
voltage to holding
coil
of solenoid.
....
)
8. Closing Adjustment Electrically Operated
Breakers
A.
Adjustment
(Fig.
22). Place breaker
in
tripped position with closing springs
fully charged. Adjust screw (44)
to
obtain 4 ± 0.5
mm
(0.158 ± 0.020
Inch)
clearance between lever (45) and
end
of
screw
(44). Adjust screw (46)
on trip button for 4 ± 0.5
mm
(0.158 ±
0.020
Inch)
clearance between strip
(47)
and
screw
end (46).
NOTE:
Breakers
fitted with a
D.C.
electromagnetic for closing have a series
resistance (economizer) which
is
placed
in
series
with
the coil, after pickup,
thereby reducing current consumption
to a
minimum.
To adjust, hold 1
mm
(0.039
inch)
gap
setting of the electro-
magnet
and
deform limitswitch strip
until contacts close.
Fig,
22
B.
Anti-Pumping Inspection, .Mechanically
operated breaker. Depress trip button
and
hold
while
charging
and
unlatch
closing
springs.
Breaker contacts must
remain
open.
Electrically operated breaker. Close
breaker
by
depressing
local
close
button
and
allow
gear motor to charge
stored
energy
springs.
While
holding
close
button depressed, depress trip
button. Breaker must trip and remain
tripped until close button
is
released
for next
cycle
of operation.
C.
Undervoltage
lockout
(Fig.
23).
When
the undervoltage release
is
provided
with
lockout to prevent breaker
re-
closing
upon voltage restoration, the
·12·
following adjustments should be made:
Applying voltage
to
the relay allows
lever (58) to come into contact with
adjusting stop (60). Adjust stop (60)
for a clearance of0.6 ± 0.4
mm
(0,024
± 0.016
inch).
Remove
voltage, allowing lever (59)
to·
rise,
check for clearance of
0.1
mm
•
~0.004
inch)
between
lever
(59) and pin.
(61).
LIMIT
OF
WEAR:
0.1
mm
(0.004
inch)
Fig.
23
9. Tripping· By LocalMechanical Pushbutton.
If
the breaker
is
fitted with a
signal
system
for overload
and
short circuit tripping with
local
reset, adjustments should
be
carried
out
as
previously outlined.
In
other
cases,
adjust
screw
(24)
(Fig.
24)
for obtaining
clearance of 2 + 0.5 -0.0
l'\llT1
(0.079 +
0.158
inch)
between strip (25) and the end
of the screw (24).
Fig.
24
f·
,I
Courtesy of NationalSwitchgear.com
····)
:/''
(\,.-
V.
REPLACEMENT
PROCEDURE
A. Arc Chute (Fig. 25). To remove arc chute,
raise retaining lever (61),
rotate
lever
90
degrees
to
clear path, and remove arc
chute
by
lifting upwards. The reverse
procedure
is
followed for repositioning arc chutes, making
sure
the
respective arc chutes fit over arcing
horns (62).
B.
Arcing Contacts and Insulating Strips (Fig. 26).
1.
Arcing contacts. With breaker in open
position, loosen retaining bolts
VI
and
remove
contact
by sliding forward. Replace
with new
contact
leaving retaining
bolt
VI
loose. Close breaker and loosen
bolt
V2
(two per contact) approximately 1.5 mm
(0.059 inch)
or
until
contact
clears locating
boss
E,
then remove by lifting upwards.
Replace with new
contact,
checking
to
see
that
contact
seats in locating boss ·
before tightening
bolt
V2. With 0.9 mm
(0.035 inch) feeler gauge, position
contact
(
1)
and tighten
bolt
VI.
0
Fig. 26
-13-
2. Insulating strips. When replacing contacts,
it
is
recommended
that
the
insulating strips
be replaced also. Using a screwdriver,
remove
two
fasteners (4) retaining in-
sulating strip (3). Replace strips using new
fasteners.
C.
Auxiliary
Contact
Block (Fig. 27). When
removing
contact
blocks (1-4), place breaker
in
closed position before loosening contact cradle
bolt V3. Slide cradle free
of
V3 and remove
contact assemblies. To replace contact blocks,
reverse procedure making sure wires are re-
turned
to
their
original positions.
The same procedure
Is
followed for removing
or replacing
contact
blocks 5-8, except
the
breaker
is
placed in
the
open position.
Fig, 27
•
'
~-@
D.
Overload
and/or
Short
Circuit Release. Remove
wires from
plus(+)
and
minus(-)
terminals
on
solid-state
control
panel located on
front
of
breaker element. Place breaker
in
closed posi-
tion and apply an 18 volt
DC
9 millisecond
pulse
to
plus
and
minus wires going
to
EX
trip
actuator.
With voltage applied, breaker should trip.
Repeat procedure, reducing voltage
In
incre-
ments until
12
volts
DC
is
reached. At this level,
breaker should
not
trip.
Do
not
attempt
to
adjust actuator.
Test sets
are
available as an
~ccessory
for
checking
the
calibration
of
SSPB breakers.
Courtesy of NationalSwitchgear.com
..
"
··)
~
~
,.
_-@
I 0
-0
I ' I
~
.,
..
• @ ® ® ,.
Fig. 28
E.
Undervoltage and Shunt Trip
Release
(Fig. 28).
;
')
r•
To
remove
trip device (8), place breaker
in
open position and remove
coil
wires
from
terminal
block
(81)
located on
rear
of breaker.
By
removing
pin
(86)
and
mounting nuts (82),
the
device
may
be
removed.
When
replacing
trip
device,
lubricate
and
adjust
as
described
in
Chapter
IV
under Voltage Tripping
Devices.
Secondary Isolating Contact
Block
(Fig. 29).
Removal
of
contact block
is
accomplished
by
removing
wiring
and
mounting
screws
illustra·
ted
in
Fig.
29.
G,
Motor
(Fig.
30).
To
gain
access
to motor,
remove
protective cover
(5)
held
by
two bolts
(3).
After
removing
wires
from terminal block
(4)
and
mounting nuts (6), lift motor from gear
train.
When
replacing motor, check to
see
that
clearance exists between pinion
and
gear.
No
further adjustment
is
required after motor
is
properly
aligned.
Fig.
30
H.
Closing Solenoid
(Fig.
31, 32). Slide coil
and
housing
from
plunger
(Fig.
31) after removing
coil wires
from
terminal block
(4)
and four
mounting bolts (11).
(Fig.
32l
If
breaker
is
equipped
with
closing preventer which would
be
mounted adjacent
to
the. closing solenoid,
the coil and
housing
cannot
slide
sideways.
It
is,
·14·
{.
(
(
Courtesy of NationalSwitchgear.com
. )
2.
Llmitswitch Operating
on
Undervoltage.
Limitswitch
(29)
used
to
indicate
voltage
being
applied
to holding
coil
of
solenoid
may
be
removed
by
breaking connections
and
removing
screws
(43).
When
replacing
limitswitch,
move
arma-
ture of solenoid
to.
see
that llmitswitch
does
not prevent solenoid
from
closing
•
Adjustment
may
be
made
by
bending
limitswitch
lever.
(
Courtesy of NationalSwitchgear.com
.Jl[
REPLACEMENT PARTS
Quantity Required Identification
Description
Replacement
Frames
Part No, Part
BOO
1600 2000 No,
Figura
:
9 12 12
Fixed
arclng-eontact 636·2000-0071 1 6
9 12 12
Moving
arcing-contact 636·2000·0072 2 6
3 --Arc-ehute 536·0800·0060 6 5
3 3 Arc-ehute 536·2000·0060 6 5
1 1 1
Ex·
Tripping Actuator 536·0000·0006 15
2
NO
+2
NC
Auxiliary Contacts 536-0000·0210 10
Zl
Motor
•48V
AC·DC
536·2000·0033 15
30
i:.c··
~~
1 1 1 Motor· 1
lOV
AC·DC
536·2000·0030 15 30
1 1 1
Motor
• 126V
AC·DC
536·2000-0034 15
30
1 1 1 Motor· 220V
AC·DC
536·2000·0031 15 30
1 1 1 Motor· 240V
AC·DC
536·2000·0036
16
30
1 1 1 Electromagnet
11
OV
60
Cy
536·2000-0040 16
31
1 1 1 Electromagnet 230V
60
Cy
'~
536·2000·0041 16
31
1 1 1 Electromagnet 125V
DC
636·2000-0044 16
31
1 1 1 Electromagnet 240
DC
636·2000·0046 16
31
1 1 1 ·Electromagnet 48
DC
636·2000-0043 16
31
·17·
Courtesy of NationalSwitchgear.com
VI. REPLACEMENT PARTS -CONTINUED
\ )
.1·.1',.
(:
Description
Replacement
Part
Fig.
Part
No.
No,
Key Interlock
for
Draw-out ACS 536-0000-0500
Not
Shown
Printed Circuit Board -
Jong
time 536-0000-0002 3 3
Printed Circuit
Board·
short
time
636-0000-0003 3 3
Printed Circuit
Board·
Instantaneous 636-0000·0004 3 3
Printed Circuit Board -ground fault 536-0000-0006 3 3
Solid State Relay
without
Cards
636-0000-0001 4 3
Safety Shutter -
BOO
A 536-0803-0020 -1
Safety Shutter -
1.600
A 536-1603-0020 -1
Safety Shutter -2000 A 636-2003-0020 -1
Flexible Crank 536-2000-0091
Not
Shown
Standard Crank 536-2000-0090
Not
Shown
Shunt
Trip
Device -110
VAC
536-0000-0100 8 28
1 Shunt
Trip
Device -220 YAC 636-0000-0101 8 28
, Shunt
Trip
Device -
460
VAC
536-0000-0102 8 28 (
Shunt
Trip
Device -48 VOC 536-0000-0103 8 28
Shunt
Trip
Device -125 VDC 536-0000-0104 8 28
Shunt Trip Device • 240 VDC 636-0000·0106 8 28
Undervoltage
Trip
Device -
11
OVAC 536-0000-0110 8 28
Undervoltage
Trip
Device·
220
VAC
536-0000-0111
,,
8 28
Undervoltage
Trip
Device -460
VAC
636-0000·0112 8
28.
Undervoltage
Trip
Device·
48 VDC 536-0000-0113 8 28
Undervoltage
Trip
Device· 125 VDC 536-0000-0114 8
28
, Undervoltage
Trip
Device·
240 VDC 536-0000-0115 8 28
Undervoltage Time Delay Device· 110
VAC
636-0000-0120 8 28
Undervoltage Time Delay Device -220
VAC
536-0000-0121 8 28
Undervoltage Time Delay Device -460 VAC 536-0000-0122 8 28
Undervoltage Time Delay Device·
48 VDC
636-0000-0123 8 28
Undervoltage Time Delay Device -126
VDC
536-0000-0124 8 28
i
J Undervoltage Time Delay Device -240 VDC 536-0000-0126 8 28 (
.
·18-
Courtesy of NationalSwitchgear.com
REPLACEMENT PARTS -continued
Quantity Required Replacement
Frames
Description
Part
No.
Part
800 1600 2000 No. Fig,
1 1 1
195
n ·
25W
'Resistor 536-0000-0401 9
28
1 1 1
340
il
·
25W
Resistor
536-0000-0402 9 28
1 1 1
900
il
·
25W
Resistor 536-0000-0403 9 28
1 1 1
1000
n ·
25W
Resistor 536-0000-0404 9 28
4 4 4 Fixed Isolating Contacts 536-0000-0200 -1
4 4 4
Moving
Isolating
Contacts 536-0000-0201 -1
3 --Current
Sensors
· 250/300
Amp
536-0800-001o Not Shown
3 --Current
Sensors
· 600/800
Amp
536-0800-0011 Not Shown
3 Current Sensors· 500/600
Amp
535.1 eoo-001o Not Shown
--Not Shown
-3 -Current Sensors· 1200/1600
Amp
536-1600-0011 Not Shown
--3 Current Sensors · 600/800
Amp
535.2000-001o
,f'l
Not Shown
--3 Current Sensors· 2000
Amp
536-2000-0011 Not Shown
I
·19·
Courtesy of NationalSwitchgear.com
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