GE AKR-30 Series Maintenance Manual page 190

5.2.1 ALTERNATE CONTROL C I RC U IT USED
A second type of electrical control is shown i n Fig. 9A
for all control voltages except 250 volts D .C . which uses
the circuit shown in Fig . 9. This alternate control circuit
elim i nates the X-relay and CC switch shown in Fig. 9.
The m otor i s energized through the "G" c utoff switch
and the K-relay contact. The motor i s deenergized when
the "G" c utoff switch changes state wh ich occurs when
the c l osing spring i s fully charged.
With the closing spring propped fully-charged, the
breaker is ready for closing. Th i s m ay be accom p l ished
electrically by closing the "PB" switch on t he breaker (if so
CONTROL
SOURCE
FIG. 9A. ALTERNATE ELEMENTARY DIAGRAM. CONTACT POSITIONS ARE
SHOWN BREAKER OPEN AND CLOSING SPRINGS DISCHARGED.
1 2
REMOTE
CLOSE
-{ � - ,
t� PB
TYP #1 83L7 1 2 "B" SERIES
equipped) or by a remote closing switch . Operation of the
, closing switch energizes the K-relay, which i n turn ener­
gizes the closing solenoid "CC". This removes the p ro p ,
releasing the closing springs to close t h e breaker. The "F"
cutoff switch is only i nstalled on breakers using D.C.
control voltage.
The anti-pum p funct ion is obtai ned through the nor­
m a l l y c losed K-relay contact i n the m otor c i rcuit. If a
c lose signal is m a i ntai ned after the breaker has tripped
open automatical ly, the K-rel ay is energ ized preventing
the m otor from c harging t he c l osing spri ng. The closing
signal m ust be removed for approxi m ately 1 .3 to 2.0
seconds to al low the closing spring to c harge.
CC - CLOSING SOLEN O I D
F - CUTOF F SWITCH, CLOSED
WHEN CLOSING SPRI NG IS
FU LLY CHARGED (D.C. O N LY)
G - CUTOFF SWITCH , OPEN
WHEN CLOSING SPRI N G IS
FU LLY C HARGED.
L - AUXI LIARY SWITCH
M - CHARG ING MOTOR
PB - CLOSE PUSH BUITON O N
BREAKER ESCUTCH EO N .
O PTIONAL
TC
S H U NT TRIP DEVICE
TC -
K - ANTI-PU M P RELAY
LEG E N D