Electrical closing – motor-operated low voltage
closing solenoid/nova reclosers
WARNING
Hazardous voltage. Solidly ground all equipment.
Failure to comply can result in death, severe personal
injury, and equipment damage.
T223.2
High-voltage is not required for reclosers utilizing a motor-
operated closing mechanism, low voltage closing, or NOVA
recloser. For information on energizing the recloser, refer
to the appropriate recloser installation manual. Low voltage
supply can use either 120 or 240 VAC for input power.
Check the name plate on the recloser to verify the correct
closing power requirements.
Figure 41 shows a test circuit for motor-operated,
low-voltage solenoid-closing, and NOVA reclosers. Since
these reclosers require only a low voltage source for
closing, high-voltage transformer T3 and its protective cage
is eliminated. All other equipment is the same as the test
equipment shown in Figure 40.
65
43
21
FORM 4D
RECLOSER
CONTROL
J
G K
H
X W
120/240 VAC
POWER
SUPPLY
T1 T2
240 VAC
VARIABLE
AUTOTRANSFORMER
240 VAC-20 A
AC POWER
TO AMMETER
AND RELAY
TO OPERATE
CYCLE
COUNTER OR
OTHER TIMING
DEVICE
SENSING CTs (3)
NOT APPLICABLE FOR
CONTROL-POWERED
NOVA RECLOSERS
Figure 41. Suggested test circuit for motor-operated,
solenoid-closing reclosers with low-voltage closing
Manual closing – solenoid-operated reclosers
WARNING
Explosion Hazard. Excessive Contact Arcing. Do not use
the manual closing tool to close an oil-insulated energized
recloser. Closing an energized oil-insulated recloser with
a manual closing tool can cause excessive contact arcing,
rapid build-up of gas within the equipment, and possible
explosion which can cause death, severe personal injury,
and equipment damage.
T203.2
If high-voltage for operating the closing solenoid is not
available, manual closing can be substituted for electrical
closing. However, not all control settings can be checked
since manual closing is not synchronized with the closing
coil control circuit in the control.
Follow these steps to manually close the recloser:
1. Remove the closing tool port cover and gasket from the
side of the recloser head casting.
CAUTION
Equipment damage. Do not turn the manual closing tool
more than one-quarter turn clockwise. Forcing the tool
beyond the mechanism stop may shear the pin on the
closing shaft of the recloser.
T222.0
2. Insert the tee-handled tool (available as an accessory)
into the port, engaging the pin on the closing shaft
(Figure 42).
3. Close the recloser by placing the yellow operating
handle (located under the sleethood) into the up
or CLOSED position and turning the closing tool
one-quarter turn clockwise.
4. After each trip operation, about 1/2 second elapses
while the closing solenoid plunger is moving upward to
reset the main toggle latch.
5. After the main toggle latch resets, the recloser can be
closed again by operating the manual closing tool.
6. Replace the gasket and port cover on the recloser head
after testing has been completed.
Figure 42. Using a manual closing tool to operate
therecloser
41OPERATION INSTRUCTIONS MN280049EN September 2017
Form 4D Microprocessor-based pole-mount recloser control installation and operation instructions
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