11
Recloser operation
INSTALLATION AND OPERATION INSTRUCTIONS
MN280103EN March 2023 www.eaton.com
Electronic control
Refer to
Service Information MN280095EN Form 7
Microprocessor Based Pole Mount Recloser Control
Installation and Operation Instructions
for control
operation information.
Manual operation of energized recloser
WARNING
HAZARDOUS VOLTAGE. DO NOT RELY ON THE OPEN POSITION
OF THE YELLOW OPERATING HANDLE; IT DOES NOT ENSURE
THAT THE LINE HAS BEEN DE-ENERGIZED. ALWAYS ESTABLISH
A VISIBLE DISCONNECT. FAILURE TO FOLLOW PROPER SAFETY
PRACTICES CAN RESULT IN CONTACT WITH HIGH VOLTAGE,
WHICH WILL CAUSE DEATH OR SEVERE PERSONAL INJURY.
The yellow manual operating handles on each single-phase
unit in the NOVA NX-STS recloser system are used to
open and lock out each unit and disable the electrical and
supervisory closing.
Do not hold the yellow handle while issuing an electrical
close operation from the control. If the handle is held in an
intermediate state, the electrical close operation could drive
it upward creating a pinch point between the handle and the
sleet hood.
The recloser mode of operation determines which units
open and close. The Form 7 control initiates the close
signal. Refer to
Service Information MN280095EN Form 7
Microprocessor Based Pole Mount Recloser Control
Installation and Operation Instructions
for control operation
information.
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.
The manual operating handle is designed to be operated
with a hotstick. See
. Pulling down the handle trips
and locks open the main contacts of the recloser. Contact
position is indicated by the OPEN flag of the contact
position indicator located on the bottom of the recloser.
The yellow operating handle will remain down in the OPEN
position and not return upward under the sleet hood.
ote:
N
When the recloser electronically operates to lockout,
the yellow operating handle will not drop down from
under the sleet hood. The yellow operating handle
remains in the OPEN position only after manual
operations are performed.
The yellow operating handle must be returned up to the
CLOSED position for the recloser to respond to a close
signal from the Form 7 control. All close operations are
initiated by the control.
NOTICE
PUSHING THE YELLOW OPERATING HANDLE TO THE CLOSED
POSITION WILL NOT CLOSE THE RECLOSER. ALL CLOSE
OPERATIONS ARE INITIATED BY THE FORM 7 CONTROL.
Figure 10 . NOVA NX-STS recloser operating handles
and position indicators
Three-phase trip/three-phase lockout or
single-phase trip/three-phase lockout
If the control is in three-phase trip/three-phase lockout or
single-phase trip/three-phase lockout mode, all three units
will lock out when the yellow operating handle on one unit
is pulled down to the OPEN position.
Single-phase trip/single-phase lockout
When the control is in single-phase trip/single-phase lockout
mode, only the unit with the yellow handle pulled down to
the OPEN position will lock out. The other two units will not
be affected and their yellow operating handles will remain in
the CLOSED position.
Lockout indication
Lockout is indicated by the Form 7 control.
ote:
N
When the recloser is locked out, the yellow manual
operating handle will not drop down from under the
sleet hood.
Automatic operation
The NOVA NX-STS recloser, in the CLOSED position,
operates automatically per the control-programmed settings.
OPEN/CLOSED contact position indicator
Manual open/close operating handle
