Receiving, Handling And Storage - GE IAC51V Instructions Manual

APPLICATION
The a-c tripping unit is used in Type lAC relays
where a reliable direct-current tripping source is
not available and it is necessary to trip the breaker
from the current-transformer secondary.
RATINGS
The a-c tripping unit has a continuous rating of
five amperes but will operate on a minimum current
of 3.5 amperes. They should be used with three­
ampere trip coils. The contacts of these units will
transfer current transformer secondary current up
100
ary current exceeds
to amperes. For applications where the second­
100

RECEIVING, HANDLING AND STORAGE

These relays, when not included as a part of a
control panel, will be shipped in cartons designed
to ;:rotect them against damage.
receipt of the relay, an examination should be made
for any damage sustained
injury or damage resulting from rough handling is
evident, a claim should be filed at once with the
transportation company and the nearest Sales Office
of the General Electric Company notified promptly.
Reasonable care should be exercised in un-
l
2
INTERNAL CONNECTIONS
Fig. 11. (K-6209658-10)
the Type
IACSlA Relay
amperes, the REAllB relay,
Immediately upon
during shipment.
6
(FRONT VIEW) •::sHORT FINGER
Internal Connections
(Front View).
Time Overcurrent Relays Type IAC
which has contacts rated
in conjunction
REAUB is not mounted inside the lAC case.
Burdens of
following table:
Frequency Amp
60
50
25
packing the relay in order that none of the parts are
injured or the adjustments disturbed.
they should be stored in their original cartons in a
If If the relays are not to be installed immediately,
place that is free from moisture, dust, and metallic
the case may find its way inside when the cover is
chips. Foreign matter collected on the outside of
removed and cause trouble in the operation of the
relay.
2
Fig.
12. (K-6209661 [11)
fo:
the Type IAC51B Relay (Front View)
200
amperes, can be used
with lAC overcurrent relays.
BURDENS
the REA unit a.re given in the
Impedance
PF
in Ohms
5
0.49 0.80
5 0.33 0.85
5 0.62
0.23
INDUCTION
UNIT
SHORT FINGER
Internal Connections for
GEH-1753
The
Volt-
Amperes
12.2
8.4
5.8
6
9