GE IAC

GEK
-
86054
All
other
tap
positions
should
pick
up
at
tap
value
±
5
%
of
of
tap
value
current
,
tap
value
.
Time
Test
Set
the
relay
at
No
.
5
time
-
dial
setting
and
minimum
amp
tap
.
Using
the
test
connection
in
Figure
9
,
apply
five
times
(
5
x
)
tap
current
to
the
relay
.
The
relay
should
operate
in
18.6
seconds
±
0.9
second
.
All
other
tap
,
time
-
dial
and
multiples
of
pickup
combinations
should
agree
with
the
time
-
curve
value
±
7
%
.
INSTANTANEOUS
UNIT
Make
sure
that
the
instantaneous
unit
is
wired
for
the
range
in
which
it
is
to
4
)
and
connected
as
operate
(
see
Internal
-
Connections
Diagram
,
Figures
2
indicated
in
test
circuit
Figure
9
.
Whenever
possible
,
use
the
higher
range
,
since
the
higher
range
has
a
higher
continuous
rating
.
Setting
the
Instantaneous
Unit
Loosen
the
locknut
and
turn
the
pole
piece
toward
the
desired
setting
.
See
Figure
1
A
.
Turning
the
pole
piece
up
increases
the
pickup
;
turning
the
pole
piece
down
decreases
the
pickup
.
Bring
up
the
current
slowly
until
the
unit
picks
up
.
It
may
be
necessary
to
repeat
this
operation
until
the
desired
pickup
value
is
obtained
.
Once
the
desired
pickup
value
is
reached
,
tighten
the
locknut
.
CAUTION
The
instantaneous
unit
is
rated
1.5
times
minimum
pick
up
.
test
current
on
too
long
,
as
it
may
damage
the
unit
.
Do
not
leave
the
Pickup
Test
With
the
unit
connected
for
high
-
range
operation
(
parallel
connections
)
and
the
target
in
the
"
Down
"
position
,
check
the
pickup
at
the
maximum
calibration
mark
;
the
pickup
should
be
within
the
limits
in
Table
X
.
TABLE
X
MAXIMUM
AMPERES
UNIT
RANGE
AMPERES
MINIMUM
AMPERES
CALIBRATION
AMPERES
3.6
4.0
0.5
-
4.0
4.5
2.0
-
16.0
16.0
17.7
14.4
10.0
-
80.0
80.0
89.0
72.0
177.0
20.0
-
160.0
144.0
160.0
TARGET
AND
SEAL
-
IN
UNIT
The
target
and
seal
-
in
unit
has
an
operating
coil
tapped
at
0.2
and
2.0
The
relay
is
shipped
from
the
factory
with
the
tap
screw
in
the
lower
-
The
tap
screw
is
the
screw
holding
the
right
-
hand
stationary
To
change
the
tap
setting
,
first
remove
one
screw
from
the
left
-
hand
amperes
,
ampere
position
,
contact
.
12
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