Type VSA12, VSA16 and VSA20/800 maintenance instructions
12MAINTENANCE INSTRUCTIONS MN280064EN October 2017
diagram of recloser circuits is shown in Figure 21.
1
MANUAL CLOSE OPEN
SWITCH
152/MCS
CLOSED
SPRING POSITION OPEN
SWITCH (240 Vac)
152/SP2
CLOSED
CAM OPERATED OPEN
SWITCH OPEN
MOTOR CIRCUIT
152/aa1 CLOSED
MOTOR M ENERGIZED
DE-ENERGIZED
CLOSING CHARGED
SPRINGS
DISCHARGED
SPRING POSITION OPEN
SWITCH (24 Vdc)
152/SP1
CLOSED
“b” CONTACT TO OPEN
CLOSED CLOSING
CIRCUIT 152/bb1
CLOSED
MANUAL TRIP AND OPEN
RESET SWITCH
152/LS1
CLOSED
CLOSING ENERGIZED
SOLENOID COIL
152/CC
DE-ENERGIZED
NEPONIAM
CONTACTS
CLOSED
“a” CONTACT TO OPEN
OPEN TRIP COIL
152/a1
CLOSED
TRIP SOLENOID ENERGIZED
COIL 152/TC
DE-ENERGIZED
“a” CONTACT TO OPEN
OPEN TRIP
SOLENOID COIL
152/a2 CLOSED
AUXILIARY SWITCH OPEN
“a” CONTACT
CLOSED
AUXILIARY SWITCH OPEN
“b” CONTACT
CLOSED
240 or 120 Vac APPLIED CLOSE SIGNAL OPEN SIGNAL
ote:N Unit in “OPEN” position with closing springs discharged when auxiliary power is initially applied. (MANUAL CLOSE or
TRIP pullrings are not operated.) Drawing shows operational sequence only; it does not have a scaled time base.
Figure 18. Sequential operation of control circuit components in recloser