Cooper Lighting S280-79-10 User Manual
Page 45
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)
G
K
A
B
E F
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.