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tvlav.31.
2012
9:19AM
No.
1530
P.
24
Page
20
OPERATION
ELESTRICAL
OPERATIOITI
Elsctrical opetation can ba carrisd
ofi
at the
Ts$
or Connoctsd Pqsition. when tho clrcuit
breaker
is
outside
of
the
cell,
it
can
be
operated elegttically
by
using
Toshiba
lntarnalional Cotpotdtion's Sccgs$ory
lsEt
oabinet.
nffiq
powarfut Spdngs.
Do
nct
place
youl hanrb or
any
pan of your
body
imlda the eqipment
whih
indicstor rhows
'CHARGED' lysllorv) or "CLOSED' (r€dl.
Effiffil
66""L
crrcuit
breaker
namedate for verification
of
prop€t oPeradng
Yohags,
A.
Eledtricel Charging
of
Closing Spting
Upon applying power to
tne conlrol circuit,
the charging motor
will
immediately start.
When
the
sprlng
is
charg€d,
the
closing
spring charging indicator
turns
from
"DISCHARGED"
(white)
to
"CHABGED"
(yellowL and
tie
motor stops' The spring
charging is now completod.
B,
Electrical Cloeing Operation
When
the
clo6ing
switch
is
turned to
"CLOSE" position,
the closing coil
will
bs
immedidtely enorgizod
and
the
circuit
bre€ker
will
close. The open'close indicator
wlll th€n
tead "CLOSED" (redl.
After
tho
clositrg of
the
brsek6r. tha charging motol
will
immediately
begin
to
charg6
thg
olosing dprings. Upon
rhe
completion
of
charging,
the
closing spring
charging
indicator will read "CHARGED" (yellow).
6.
Electrlcal Opening (Tripping) Operation
Wh6n the
trlp switch is
lurned
to
'TRIP"
position, tha
trip coil will
be imrnedistely
energized and the
circuit
breaker
will open,
wirh
ths
open-closed indicstor
reading
'OFEN'(greenl.
cor\lYRol
ct
RcutT oPEnAnoI\l
A,
Closing Sequence
Th6
schematics
$hown
in
Fig.
34
thru
Fig.
36 r6fl6cts the condition where:
1) Ghatgtng
13
complate,
and
2) Th€ circuit
breaker is open.
IVOTE:
Thc
closing spring
immedi8tBlY
begins chalging
when
the
control
circuit
is energizsd.
Pour€rful
tprlngs
and movlng
geare,
Do
not
plaae
yout
hands
of
eny
part of
your body
lnslde
the
equlpment
whil6
tha
cl.cult
brcNLGt
it
chrrglng.
ln
this
condition,
the
external
opBration
switch cs(1| is
turned
to the "closEi
position
causing:
1) Circuit lL, b1,
LCS,
Y'b, X'b,
CC to
energize
the
closing
coil
CC,
in$tantlY, end
2) The
circuit
brsakar closing
llm.
18
304O
mcec., at which tiffie,
3) Auxilidry switch b1 opens,
4)
Closing
coil
CC, d€-€nergiz€8.
5)
Auxiliary
relay
Y,
energizos,
completing th€ anti-pumping circuit.
B.
Charging Sequence
At
the
same
tima tha circuit
breaker
is
closed:
1)
Limit
switch,
LS, closes
2)
Control Felay X, enargizes
3) Circuit LS, LS, X-4,
M, X'4. F
is
complered, and
4)
Charging motdr runs
(for about 4
eec)
When oloslng spring is charged:
1) Limit switch, LS,
opens.
2l
Control r6lay
X,
de-energizes.
C.
Tripping
{Opening} $equence
The
tripping of the circuit
breaker involves
only the
a l
,
TC
citcuit.
when the extelnal
oporation
switch
GS(21
is
turnsd
to
th6
"TFlP"
position:
1) Trip coil, TC, engrglzss,
and
2) Chcult
brEake. opening
ot
tripping
fime is 15-20
maec,
At
which time:
1) Auxiliary switch A1,
opons
2)
Trip coil, TC, de-anergizes
IIOTE:
FOr
clrcuit
brsakers
with
different
valtagE combinationg
lor
cloaing,
tripping
or
charging, consult Toshiba
lntgrnational CorporEtion
tol
the
particulSr schEmetic.
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