8
Installation procedure
INSTALLATION AND OPERATION INSTRUCTIONS
MN280103EN March 2023 www.eaton.com
WARNING
HAZARDOUS VOLTAGE. RECLOSER AND CONTROL MUST
BE SOLIDLY GROUNDED. FOLLOW ALL LOCALLY APPROVED
PROCEDURES AND SAFETY PRACTICES WHEN GROUNDING THIS
EQUIPMENT. IMPROPER GROUNDING CAN RESULT IN CONTACT
WITH HIGH VOLTAGE, WHICH WILL CAUSE DEATH OR SEVERE
PERSONAL INJURY.
4.
Ground the reclosers and mounting frame. Make
the ground connection to the ground connector in
accordance with approved utility standards. The ground
connector is located on the rear lower-right corner of the
head casting. The ground terminal will accommodate
#10 to #2 stranded cables. See
for ground
connector location.
Figure 6 . NOVA NX-STS ground terminal
connector and location
5.
Install the control. Refer to
Service Information
MN280095EN Form 7 Microprocessor Based Pole
Mount Recloser Control Installation and Operation
Instructions
. Connect the control cable between
the control and the recloser; the control is properly
programmed for the planned installation and the
control is grounded.
WARNING
HAZARDOUS VOLTAGE. DO NOT TOUCH THE PINS INSIDE THE
CONTROL CABLE CONNECTOR. PINS COULD BE ENERGIZED IF A
TRIP OR CLOSE SIGNAL IS ISSUED. FAILURE TO COMPLY COULD
CAUSE SEVERE INJURY OR DEATH.
ote:
N
Control is interlocked such that during normal
operation, voltage cannot appear unless correct
52a/b status is reported by the recloser.
To ensure proper installation of this cable, securely mate
the cable to its mating receptacle by first aligning the blue
indicator on the cable to the respective blue indicator on
the receptacle. Mate the cable, and twist one quarter turn
until the twist lock connector seats in place. While fastening
the cable connector, a red ring below the cable collar will
be covered, and an audible click can be heard during the
Figure 7 . Cable with twist lock connector
6.
Make the high-voltage line connections. See
Note:
Disconnect switches and bypass switches are
recommended to facilitate switching and isolation.
a.
Provide surge protection to both sides of
each recloser.
NOTICE
EQUIPMENT DAMAGE. DO NOT ADJUST OR ROTATE BUSHING
TERMINALS WITHOUT FIRST REMOVING POWER LINE LEADS
AND LOOSENING PINCH BOLT TO RELEASE CLAMP TENSION.
FAILURE TO REMOVE TENSION BETWEEN THE CLAMP AND
THE INTERRUPTER STUD PRIOR TO ROTATING THE TERMINAL
WILL DAMAGE THE ENCAPSULATED INTERRUPTER ASSEMBLY
RESULTING IN EQUIPMENT DAMAGE.
NOTICE
EQUIPMENT DAMAGE MAY OCCUR IF TORQUE VALUES ARE
EXCEEDED.
b.
Connect high-voltage lines to recloser bushing
terminals. The recommended torque value for
bushing terminal-to-line connection is 45–50 ft lb.
