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NOVA™ STS Single-Tank, Triple-Single, Electronically Controlled Recloser
INSTALLATION AND OPERATION INSTRUCTIONS MN280046EN May 2016
Installation procedure
WARNING
Hazardous voltage. Always use a hotstick when working
with this equipment. Failure to do so could result in
contact with high voltage, which will cause death or
severe personal injury.
G108.1
WARNING
This equipment is not intended to protect human
life. Follow all locally approved procedures and safety
practices when installing or operating this equipment.
Failure to comply can result in death, severe personal
injury, and equipment damage.
G102.1
When installing the recloser, refer to the applicable recloser
mounting frame instructions. Installation instructions are
included with the mounting frame.
1. Check the data plate ratings. Make sure the ratings,
settings, and interface options on each recloser
data plate (see Figure 2) are correct for the planned
installation.
Figure 2. NOVA STS recloser data plate.
2. Perform high-potential withstand tests. Prior to
installing the NOVA STS recloser, perform high-potential
withstand tests. Refer to the Service information
section for high-potential withstand test procedures.
This test will help identify any shipping damage
affecting the dielectric condition of the recloser or the
vacuum integrity of the interrupter.
CAUTION
Personal injury. Sheds on epoxy encapsulation have
sharp edges. Wear protective gloves when handling the
unit. Failure to do so can result in cuts and abrasions.
T258.1
3. Install the recloser. Install the recloser in the
appropriate Eaton’s Cooper Power series pole- or
substation mounting frame. See Figure 3 for moving
and lifting instructions.
WARNING
Falling equipment. Use the lifting lugs provided and
follow all locally approved safety practices when lifting
and mounting the equipment. Lift the unit smoothly
and do not allow the unit to shift. Improper lifting
can result in severe personal injury, death, and/or
equipment damage.
G106.3
Moving the recloser
The NOVA STS reclosers are shipped palletized (bolted onto
a pallet). When moving with a fork truck/lift, the recloser
must remain bolted to the pallet to avoid damage.
Eaton recommends transporting Cooper Power series NOVA
reclosers in the closed position to maximize the operational
performance of the unit.
Lifting the recloser
Follow all approved safety practices when making hitches
and lifting the equipment. Lift the unit smoothly and do not
allow the unit to shift.
CAUTION
Tip-over hazard. High center of gravity. Use a 4-point
hitch to prevent switchgear from overturning during
lifting operations. Improper lifting can result in personal
injury or equipment damage.
T297.0
O
P
E
N
C
L
O
S
E
A
Cg
B
Lifting
Lugs
O
P
E
N
O
P
E
N
: Sling height for 15 kV and 27 kV with 125 BIL units: 914 mm (36 in
Sling height for 27 kV with 150 BIL and 38 kV units: 1067 mm (42 in)
: Center of gravity (Cg) is approximately 254 mm (10 in) below plane of
Figure 3. Moving and lifting the NOVA STS recloser.
WARNING
Hazardous voltage. Solidly ground all equipment. Failure
to comply can result in death, severe personal injury,
and equipment damage.
T223.2
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