Storage; Drawout Breaker Interchangeability - GE AKR-30 Series Maintenance Manual

SECTION 3-Storage
It is recommended that the breaker be put into service
immediately in its permanent location. If this is not possi­
ble, the following precautions must be taken to insure the
proper storage of the breaker:
1. The breaker should be carefully protected against
condensation, preferably by storing it in a warm dry room,
since water absorption has an adverse effect on the insula­
tion parts. Circuit breakers for outdoor switchgear should
be stored in the equipment only when power is available
and the heaters are in operation to prevent condensation.
2. The breaker should
from corrosive gases or fumes. Particular care should
taken to protect the equipment from moisture and cement
dust, as this combination has a very corrosive effect on
many parts.
CAUTION:
IF THE BREAKER IS STORED FOR
ANY LENGTH OF TIME, IT SHOULD BE INSPECTED
PERIOD/CALLY TO SEE THA T RUSTING HAS NOT
S TAR TED AND TO ASSURE GOOD MECHANICAL
CONDITION. SHOULD THE BREAKER BE S TORED
UNDER UNFAVORABLE A TMOSPHERIC CONDI­
TIONS, IT SHOULD BE CLEANED AND DRIED OUT
BEFORE BEING PLACED IN SERVICE.
SECTION 4-

Drawout Breaker Interchangeability

In breakers of the same type a
general, drawout
are interchangeable in their equipment
drawout breakers of different frame sazes are not anter­
changeable. To prevent inserting the wrong type breaker
into a drawout compartment. suitable "reJectaon hardware"
is affixed to each breaker and ats compartment. Fagure
shows a typacal re1ectaon bracket whtch ahgns wath
lion pan tn the drawout rail (Fag.
breaker as tnserted anto a compartment the bracket and ptn
do not mate. preventang the breaker from seattng
the
drawout ratls.
There as one exception to the above Breakers of the
same frame s•ze havtng dafferent short carcu•t
be interchanged •n one darechon onl y
a. be
An AKR-30H can anserted tnto an AKR-30 compart·
ment.
b.
An AKR·SOH can be anserted tnto an AKR-50 compart·
ment.
c. be
An AKR·SOH-1 can
AKR·SOH compartment.
d. be
An AKRT·SOH can
partment.
1 0
be stored in a clean location free
d
n
compartments:
a
8)
When the wrong type
atself
ratangs
anserted tnto an AKR-50 and
anserted anto an AKRT-50 com­
The rejection hardware prevents the converse bf a.
thru d. above.
A detailed description of the rejection pin and bracket
combinations used is given in Installation manual, GEl
86150.
be
FIG.
7-
REJECTION SYSTEM
at n g
r i
7
reJec·
tnlo
may
FIG. 8 INSERTING THE BREAKER
DRAWOUT BREAKER
FRONT OF
COMPARTMENT
RIGHT
SIDE
PIN