I .
A
I
1 5 VAC
v a r i a b l e
vo l t a ge
t
r
a
n
s
f
o
rm
e
r
w i t h a t l eas t
3 Amps ou t pu t .
2 .
An
amm
e
t
e
r
wh i ch w l
I I i nd i ca t e I
t o
3
Amps
w i t h
r ea s onab l e
a
c c
u
r
a
c
y
.
3 .
An a
i r
-
c
o
r
e
reac tor of 35
m i
l
l
i
-
h
e
n
r
i
e
s
o r
mor e w i t h
a O C r
e
s i
s
t
a
n
c
e
of
20
oh
ms o r l es s .
A
s
t
a
n
d
a
r
d
1 25
V
DC
po-.... e r
c
i
r
c
u i
t
b reaker
s o
1
eno l d t
r
l
p
c
o i
I
(
s
u
c
h
a s
A l l i � - C h a l me rs N o .
7 1 -200 -745 -50 1 )
may
be used , a s
may
o t he r s i m i l a r
co i
I s .
H
owev
e
r
,
a r e a c t o r
d
e
s
i
g
n
e
d
f o r
t
h
e p u r pos e
I s av a i l ab l e ,
a n d
i s
a l s o
s
u
i
t
a
b
l
e
f o r
t
h
e mo re
a
cc
u
r
a
t
e
requ i r emen t s
o f
t i me de l ay t es t i n g .
I t
may
b e
o r d e red a s
- REACTOR , 7 1 - 1 42 -3 9 5 - 5 0 1 .
A l l i s -Cha l me r s
ca n
a l s o
s u pp l y
a
comp l e t e ,
i n
t
e
g
ra
t
e
d
and e
a
s
i l y
por tab l e tes t
s e t c
o
m
p
r
i
s
i
n
g e
s
s
e
n
t
i
a
l
l
y t h e a bove equ i pmen t ,
as
I l l us t ra ted
i n F i g u re
7 C .
Con t a c t t h e
l
o
c
a
l
A l l i s -Cha l me rs
o f f i ce
f o r f u r t he r i
n
f
o
r
m
a
t
i o
n
.
Tes t
0
Th i s
s e
c t
i on
w i
1 1
de s c r i be
i n
d e ta l 1 the s t eps t o
be
ta
k
en
t o
c
a r
r
y
C
ou t
t
h
e
tes t s .
Tes t s may
be
co
n
d
u
c t
ed
on
t h e
c
on
p
l
e
t
e
c i
r
c
u
i
t
b re a ke r ,
e
i
t
h
e
r
I n
t h e d i s con nec t ed c ub i c l e
p
o
s
i
t i on
,
o r
removed
f r om
t
h
e
cu b i c l e .
I t
I s no t
r e qu i r ed t o
remove
or
d i s conne c t
any
p
e
r
m
an
e
n
t
w
i
r
i n g
on
the
c i r cu i t b ieake r a s
l
o
n
g as
and
con t ro l c i r c u i t s
a re n
o
t
c
o
nn
e
c
t
e
d
t o
t h e
b
r e
a
k
e
r
.
I t
w i I I
u
s
u
a
l
l
y
be adva n ta geous t o pe r f o rm
n o rma l
rou t i ne ma i n t enance
on
the
c
i
r
c
u i
t
b
r
eak
e r
b
ef
o r
e
t
e
s
t i ng
the s t a t i c
t r
i
p d
e
v
i
ce
.
A
l t
h
o
u g h
the
fo l l ow i ng des c r i p t i ons r
e
l
a t
e
t o
a
c
om
p
l
e
t
e
c i r cu i t
b reake r un i t ,
i t
w i l l be
appa ren t t h a t t h e
t
e
s
t
s
can
a l s o be ca r r i ed
ou t on
a s ta t i c t r i p
de
v
i
c
e
by i tse l f .
Conne
c
t
a
1 00 ohm ,
I
wa t t
re� l s t o r a c ros s t e rm i na l s 7
a nd
8
of
the
s t a t i c
t r
i
p
dev i ce
w
h
e
n
t he
c
i
r
c
u i
t b r e a ke r t r i p p i ng
d
e
v i
c
e
(see
F i g u r e
8) i s
n o t conn e c t ed t o
the s ta t i c
t
r
i
p
,
to
s
i
m
u
l
a t e
a
l
o
a
d
d u r i n g t h i s
t e s t .
- 1 8 -
(
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