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122
5.
ELECTRICAL PARTS
Fig.
5.37
Construction
of
battery
CD
Eilectrode post
®
Ground terminal
®
Dilute sulfuric acid
©
Anode plate
®
Cathode plote
®
Glass
mat
®
Separator
plate
®
Cose
®
Positive terminal
fig.
5.
38
Plates
group
.
'
@
_..,.,.-,1-,,_.,.
~
;
..
fig.
5.
39
Plates and
Separator
CD
Cose
@
Case cover
®
Separator plate
(1)
Grid Plate
®
Plotes group
©
Caps
®
Plates
@
Glass
mat
tifier should be mounted where there is sufficient
now of air for cooling.
5.
Selenium rectifier
when
left unused
for
a
long period of time
will
have a large reverse
current naw.
This cond ition can be corrected
by applying
about half the normal
voltage
initially and increasing the voltage
to the full
rating
over
a period of one hour, before using
the rectifier
.
D.
Battery
Batteries used on automobiles and motorcycles
are of the lead storage
type
as
shown
in
Fig.
5. 37
which
consists of interconnected anode plates
nested
with
the interconnected cathode plates (one
more cathode
than anode plates),
with
separators
installed between
the plates,
forming
an element
which
is
encased in
a cell
within the styrol
case
and immersed in an
electrolyte
of diluted
sulfuric
acid.
Each cell produces a
flow of
current
of
approxi-
mately
2. IV
(reaching
over
2. 5 V during full
charge).
A
6
volt
battery consists
of
three cells connected
in
series
by cell connectors.
The 450
model
uses a 12
V battery
which con-
sists of 6 cells connected in series.
The plate consists of grid framework
made of
lead-antimony
allay
forming a horizontal and
vertical
pattern over
which
applied
a
paste compounded of
lead oxide and sulfuric acid.
The anode plate contains dark brown leaG
per-
oxide,
whereas, the cathode
plates contains
the
gray
sponge
lead.
In addition, an infiation agent
has been added to prevent
shrinkage
during use.
(Fig.
5.
38)
The plates are insulated from each other by suita-
ble separators made from this ribbed cypress
wood
of recently,
from perferated
rubber and synthetic
resin sheet.
Fiber glass mat is placed
between
the
anode plate and the separetor prevent the sul-
fated anode particles from dropping to the bottom
of the case.
(Fig. 5. 39)
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