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NOVA™ STS Single-Tank, Triple-Single, Electronically Controlled Recloser
INSTALLATION AND OPERATION INSTRUCTIONS
MN280046EN May 2016
Electronic control
Refer to
Service Information S280-70-7 Form 6 Triple-
Single, 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 or the contact position
indicator; 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 .
G114 .1
The yellow manual operating handles on each single-phase
unit in the NOVA STS recloser are used to open and lock out
each unit and disable the electrical and supervisory closing.
The recloser mode of operation determines which phases
open and close. The Form 6 Triple-Single control initiates the
close signal. Refer to
Service Information S280-70-7 Form
6 Triple-Single, Microprocessor-Based Pole Mount Recloser
Control Installation and Operation Instructions
for control
operation information.
WARNING
H
azardous 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
The manual operating handle is designed to be operated
with a hotstick. See Figure 10. 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. The yellow operating handle will remain
down in the OPEN position and not return upward under the
sleet hood.
otee:
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 6 Triple-Single control. All close
operations are initiated by the control.
IMPORTANT
Pushing the yellow operating handle to the CLOSED posi-
tion will not close the recloser. All close operations are initi-
ated by the Form 6 Triple-Single control.
3-Phase trip/3-phase lockout or 1-phase trip/3-phase
lockout
If the control is in Three-Phase Trip/Three-Phase Lockout
or Single-Phase Trip/Three-Phase Lockout mode, all three
phases will lock out when the yellow operating handle on
one phase is pulled down to the OPEN position.
1-Phase trip/1-phase lockout
When the control is in Single-Phase Trip/Single-Phase
Lockout mode, only the phase with the yellow handle
pulled down to the OPEN position will lock out. The other
two phases will not be affected and their yellow operating
handles will remain in the CLOSE position.
Lockout indication
Lockout is indicated by the Form 6 Triple-Single control.
otee:
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 STS recloser, in the CLOSED position, operates
automatically per the control-programmed settings.
Figure 10 . NOVA STS recloser operating handles and
indicators
Contact position indicator
Located on the outboard side of the sleet hood, this
indicator displays the word OPEN (Green) when the recloser
contacts are open and CLOSED (Red) when the recloser
contacts are closed. See Figure 10.
Operations counter
A four-digit mechanical counter, located under the sleet
hood shown in Figure 10, cumulatively records each time
the recloser operates.
