Mechanical Inspection 1; Electrical Tests; Drawout Relays, General; Power Requirements, General 1 - GE IAC Series Instruction Booklet

MECHANICAL INSPECTION
l. There should
rotated
to its rest position.
2. Make sure
convolutions tangled or touching.
3.
The armature and contacts of the seal-in unit,
armature and
freely when operated by
wipe on the seal-in contacts.
4.
The targets in the seal-in unit and in the instantaneous unit
must come into view and latch when the armatures are operated
by hand,
operated.
5 .
Make sure
internal-connections diagram.
Every circuit
It especially
l.S
circuits with shorting bars that the auxiliary
high enough
before the
Transformer)

ELECTRICAL TESTS

DRAWOUT RELAYS,
Since all drawout relays in service operate in their cases,
recommended that they be tested in their cases or an equivalent
case. In this
accurately duplicated during
removing it from the panel by using a
makes connections
shorting bars in the case.
Although this
requires C.T. shorting
since connections
circuitry.
POWER REQUIREMENTS,
All devices operating on alternating current
frequency. Since
frequency
fundamental
it follows that
by applied waveforms.
GEK-34054
be no noticeable
slowly clockwise.
the control
contacts of the
and should unlatch
that the fingers
CAUTION
in the drawout
important
to engage the
main brushes do.
secondary circuits from being
GENERAL
way, any magnetic
testing.
only with the
The
test plug allows
jumpers
are made to
GENERAL
non-sinusoidal
plus harmonics
alternating-current devices
AC relays
friction
The disk should
spring is not
instantaneous unit,
hand; there should
when the target-release
and shorting
case has an
on current circuits
connecting plug
This will prevent
opened.
effects of the
A relay may
l2 XLA13A test plug.
relay, and does
l2 XLA12A test plug
greater testing
and the exercise
both the relay
waveforms can
of that fundamental
(relays)
(and AC devices
11
when the disk
return by itself
deformed, nor
as well as the
should
be at least
lever
bars agree with
auxiliary brush.
and other
brush be bent
or test plug
CT (Current
enclosure will
be tested without
This plug
not disturb
may also be
flexibility,
o f greater
and the external
(AC) are affected by
be analyzed
frequency,
will be affected
in general)
is
its
move
1/32 "
is
the
it is
steel
be
any
used.
i t
care,
as a
are