8
Effective January 2017
NOVA
®
15i, NOVA 27i, and NOVA 38i; Three-phase
microprocessor-controlled; installation and operation
instructions (S280-43-1)
Instructional Literature
IL0104001E
4.
Ground the recloser
. Make the ground connection to the
ground connector. The ground connector is located on the back
of the mechanism housing. See Figure 4 for ground connector
location. The ground clamp accepts #10 to #2 stranded cables.
See Figures 10, 11, and 12 for recommended grounding for the
NOVA i recloser.
5.
Install the control
. Refer to the control installation manual and
install the control. Make sure the control cable is connected
between the control and the recloser, the control is properly
programmed for the planned installation, and the control is
grounded.
6.
Make high-voltage line connections
(See Figure 8).
Note:
Disconnect switches and bypass switches are not
required but are highly recommended as they facilitate switching
and isolation.
A.
Connect high-voltage lines to recloser bushing terminals.
Refer to Figure 9 for terminal identification of the NOVA i
recloser. Terminal connection to copper conductors only are
recommended.
B.
Provide surge arrester protection. Surge arrester protection
should be provided on both sides.
Hazardous voltage. Solidly ground all equipment. Failure to comply can
result in death, severe personal injury, and equipment damage.
WARNING
Equipment Damage. Do not adjust or rotate bushing terminals. The ushing
terminals are factory-calibrated to meet the continuous current require-
ment of the switchgear. Adjusting or rotating the bushing terminals can
damage the encapsulated interrupter resulting in equipment damage or
personal injury.
CAUTION
The default connections use the horizontal bushing as the source side and the
vertical bushing as the load side. Also, the horizontal bushing may be used as the
load side and the vertical bushing as the source side. Note that reversing the
source and load bushings has no effect on overcurrent protection but may require
setting or wiring changes to the control for correct metering.
If equipped with internal voltage sensors, the horizontal bushings (1, 3, 5) must be
connected to the source. The internal voltage sensors cannot monitor source-side
voltage when the NOVA i recloser is in the OPEN position if the horizontal
bushings are connected to the load.
IMPORTANT
Surge
arresters
Bypass
switch
Disconnect
switch
Surge
arresters
Disconnect
switch
Recloser
1
3
5
2
4
6
Figure 8.
Connection diagram shows complete surge protection
and illustrates bypass and disconnect switches.
Figure 9.
Terminal identification of NOVA i recloser.
6
4
2
5
3
1
