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S280-79-10
45
!
SAFETY
FOR LIFE
3
6
4
T3
Y
H
X
Z
VOLTAGE RATING OF
RECLOSER CLOSING
SOLENOID COIL
SENSING CTs (3)
CLOSING
SOLENOID
CONTACTOR
ROTARY
SOLENOID
MAIN
CONTACTS (S)
GK
AB
EF
TO
240 OR
480 VAC
SOURCE
TO
240 VAC
SOURCE
CLOSING
SOLENOID
COIL
TRIP
SOLENOID
CONTROL
CABLE RECEPTACLE
W
ELECTRONIC
CONTROL
TO
AMMETER AND RELAY TO
OPERATE CYCLE COUNTER
OR OTHER TIMING DEVICE
120 VAC
VARIABLE
AUTOTRANSFORMER
240 VAC
20 AMPS
T2
1
2
5
J
Figure 45.
Suggested test circuit for “shop-testing” solenoid-closing reclosers.
5 6
3
4
1 2
C
B
A
BYPASS SWITCHES
(CLOSED)
SOURCE SIDE
DISCONNECT SWITCHES
(CLOSED)
LOAD SIDE
DISCONNECT SWITCHES
(OPEN)
CLOSING
COIL
LOAD
SOURCE
SOURCE
LOAD
Figure 44.
Closing source-side switches of a bypassed “on-line” recloser provides closing solenoid power for automatic
operation during testing.