S&C Vista User manual

Remote Supervisory Vista®Underground
Distribution Switchgear
Outdoor Distribution (15.5 kV through 38 kV)
Pad-Mounted, Dry-Vault-Mounted, Wet-
Vault-Mounted, and Undercover™ Styles
September 25, 2023
© S&C Electric Company 1999-2023, all rights reserved Instruction Sheet 682-510
Operation
This green leaf icon designates information specically for Vista Green Underground Distribution Switchgear
that uses an eco-friendly insulating gas. Unless otherwise designated, instructions provided apply to all manual
Vista switchgear products.
Table of Contents
Introduction � � � � � � � � � � � � � � � � � � � � � � � � � � � � � 2
Qualified Persons � � � � � � � � � � � � � � � � � � � � � � � � � � � �2
Read this Instruction Sheet � � � � � � � � � � � � � � � � � � � �2
Retain this Instruction Sheet� � � � � � � � � � � � � � � � � � � �2
Proper Application � � � � � � � � � � � � � � � � � � � � � � � � � � �2
Warranty � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � �3
Safety Information� � � � � � � � � � � � � � � � � � � � � � � � 4
Understanding Safety-Alert Messages� � � � � � � � � � � �4
Following Safety Instructions � � � � � � � � � � � � � � � � � � �4
Replacement Instructions andLabels � � � � � � � � � � � �4
Location of Safety Labels � � � � � � � � � � � � � � � � � � � � � �5
Safety Precautions � � � � � � � � � � � � � � � � � � � � � � � 6
Components � � � � � � � � � � � � � � � � � � � � � � � � � � � � 7
Overview of Components � � � � � � � � � � � � � � � � � � � � � �7
Operation � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � 12
Manually Opening, Closing, or
Grounding a Way � � � � � � � � � � � � � � � � � � � � � � � � �12
Locking Out Grounded Position � � � � � � � � � � � � � � � �16
Locking In Closed, Open, or Grounded Position � � �17
Electrically Opening, Closing, or Grounding aWay �18
Motor Operator Decoupling � � � � � � � � � � � � � � � � � � �22
Checking for Voltage Using Optional VOLTAGE
Indicator � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � �24
Low-Voltage Phasing Using Optional VOLTAGE
Indicator with Phasing � � � � � � � � � � � � � � � � � � � � �27
Maintenance� � � � � � � � � � � � � � � � � � � � � � � � � � � � 29
Components � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � 29
Returning Equipment to Service� � � � � � � � � � � � � � � 30
Enclosure Finish � � � � � � � � � � � � � � � � � � � � � � � � � � � �31
Maintenance Recommendations in Extremely
Corrosive Environments� � � � � � � � � � � � � � � � � � � �31
Dielectric Testing� � � � � � � � � � � � � � � � � � � � � � � � 32
Routine Switchgear Testing � � � � � � � � � � � � � � � � � � 32
Cable Testing and Fault Locating � � � � � � � � � � � � � � 33
Fault-Interrupter Testing � � � � � � � � � � � � � � � � � � � � � 34
Resistance Measurement� � � � � � � � � � � � � � � � � � � � 35

2 S&C Instruction Sheet 682-510
WARNING
Only qualified persons who are knowledgeable in the installation, operation, and maintenance
of overhead and underground electric distribution equipment, along with all associated hazards,
may install, operate, and maintain the equipment covered by this publication� A qualified person
is someone who is trained and competent in:
• The skills and techniques necessary to distinguish exposed live parts from nonlive parts
of electrical equipment
•
The skills and techniques necessary to determine the proper approach distances
corresponding to the voltages to which the qualified person will be exposed
•
The proper use of special precautionary techniques, personal protective equipment, insulated
and shielding materials, and insulated tools for working on or near exposed energized parts
of electrical equipment
These instructions are intended only for such qualified persons� They are not intended to be a
substitute for adequate training and experience in safety procedures for this type ofequipment�
NOTICE
Thoroughly and carefully read this instruction sheet and all materials included in the product’s
instruction handbook before installing or operating the remote supervisory Vista Underground
Distribution Switchgear� Become familiar with the Safety Information and Safety Precautions
on pages 4 through 6� The latest version of this publication is available online in PDF format
at https://www�sandc�com/en/contact-us/product-literature/�
This instruction sheet is a permanent part of the remote supervisory Vista Underground Distribution
Switchgear. Designate a location where users can easily retrieve and refer to this publication.
WARNING
The equipment in this publication must be selected for a specific application� The application
must be within the ratings furnished for the equipment� Ratings for this gear are listed on a
ratings label at the front of the switchgear� See Specification Bulletin 682-31 for more information�
Qualified
Persons
Read this
Instruction
Sheet
Retain this
Instruction
Sheet
Proper
Application
Introduction

S&C Instruction Sheet 682-510 3
Introduction
The warranty and/or obligations described in S&C’s Price Sheet 150, “Standard Conditions of
Sale–Immediate Purchasers in the United States,” (or Price Sheet 153, “Standard Conditions of
Sale–Immediate Purchasers Outside the United States”), plus any special warranty provisions, as
set forth in the applicable product-line specication bulletin, are exclusive. The remedies provided
in the former for breach of these warranties shall constitute the immediate purchaser’s or end
user’s exclusive remedy and a fulllment of the seller’s entire liability. In no event shall the seller’s
liability to the immediate purchaser or end user exceed the price of the specic product that gives
rise to the immediate purchaser’s or end user’s claim. All other warranties, whether express or
implied or arising by operation of law, course of dealing, usage of trade or otherwise, are excluded.
The only warranties are those stated in Price Sheet 150 (or Price Sheet 153), and THERE ARE NO
EXPRESS OR IMPLIED WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR
PURPOSE. ANY EXPRESS WARRANTY OR OTHER OBLIGATION PROVIDED IN PRICE SHEET
150 (OR PRICE SHEET 153) IS GRANTED ONLY TO THE IMMEDIATE PURCHASER AND END
USER, AS DEFINED THEREIN. OTHER THAN AN END USER, NO REMOTE PURCHASER
MAY RELY ON ANY AFFIRMATION OF FACT OR PROMISE THAT RELATES TO THE GOODS
DESCRIBED HEREIN, ANY DESCRIPTION THAT RELATES TO THE GOODS, OR ANY REMEDIAL
PROMISE INCLUDED IN PRICE SHEET 150 (OR PRICE SHEET 153).
Warranty

4 S&C Instruction Sheet 682-510
Safety Information
Several types of safety-alert messages may appear throughout this instruction sheet and on
labels and tags attached to the remote supervisory Vista Underground Distribution Switchgear.
Familiarize yourself with these types of messages and the importance of these various signal words:
DANGER
“DANGER” identifies the most serious and immediate hazards that will likely result in serious
personal injury or death if instructions, including recommended precautions, are not followed�
WARNING
“WARNING” identifies hazards or unsafe practices that can result in serious personal injury
or death if instructions, including recommended precautions, are not followed�
CAUTION
“CAUTION” identifies hazards or unsafe practices that can result in minor personal injury if
instructions, including recommended precautions, are not followed�
NOTICE
“NOTICE” identifies important procedures or requirements that can result in product or property
damage if instructions are not followed�
If any portion of this instruction sheet is unclear and assistance is needed, contact the nearest
S&C Sales Ofce or S&C Authorized Distributor. Their telephone numbers are listed on S&C’s
website sandc.com, or call the S&C Global Support and Monitoring Center at 1-888-762-1100.
NOTICE
Read this instruction sheet thoroughly and carefully before installing
the remote supervisory Vista Underground Distribution Switchgear�
If additional copies of this instruction sheet are required, contact the nearest S&C Sales Ofce,
S&C Authorized Distributor, S&C Headquarters, or S&C Electric Canada Ltd.
It is important that any missing, damaged, or faded labels on the equipment be replaced
immediately. Replacement labels are available by contacting the nearest S&C Sales Office, S&C
Authorized Distributor, S&C Headquarters, or S&C Electric Canada Ltd.
Understanding
Safety-Alert
Messages
Following
Safety
Instructions
Replacement
Instructions
andLabels

Safety Information
S&C Instruction Sheet 682-510 5
Top of switchgear
Pad-mounted enclosure
Reorder Information for Safety Labels
Location Safety-Alert Message Description Part Number
AWARNING Keep Out—Hazardous Voltage Inside G-6681
BDANGER Hazardous Voltage—Always Consider Circuits and Components Live � � � G-6700
CDANGER Never Drill Into Tank—Hazardous Voltage, Contains Pressurized Gas G-6682
DDANGER Keep Away—Hazardous Voltage (“Mr� Ouch”) G-6699
EWARNING Check Gas Pressure Before Operating Switchgear G-6686
FWARNING Always Test Voltage Indicator For Proper Operation G-6689
G●WARNING Always Visually Confirm Blade Position G-6693
G-6694 (option “-L2”)
●This label is located on the side of the gear and is not visible in this photo�
A
B
C D
E F
G ●
Location of Safety Labels

6 S&C Instruction Sheet 682-510
DANGER
Vista Underground Distribution Switchgear contains high voltage� Failure to
observe the precautions below will result in serious injury or death�
Some of these precautions may differ from company operating procedures and
rules� Where a discrepancy exists, users should follow their company’s operating
procedures and rules�
1� QUALIFIED PERSONS� Access to Vista Underground
Distribution Switchgear must be restricted only to
qualified persons� See the “Qualified Persons” section
on page 2�
2�
SAFETY PROCEDURES� Always follow safe
operat ing procedures and rules�
3�
PERSONAL PROTECTIVE EQUIPMENT� Always
use suitable protective equipment, such as rubber
gloves, rubber mats, hard hats, safety glasses, and
flash clothing, in accordance with safe operating
procedures and rules�
4�
SAFETY LABELS� Do not remove or obscure any of
the “CAUTION,” “WARNING,” or “DANGER” labels�
5�
CLOSING AND LOCKING ENCLOSURES� The
pad-mounted enclosure and low-voltage compartment
or enclosure must be securely closed with padlocks
in place at all times unless work is being performed
inside�
6�
ENERGIZED BUSHINGS� Always assume the
bushings are energized unless proven otherwise by
test, by visual evidence of an open-circuit condition
at the load-interrupter switch or fault interrupter, or
by observing that the load-interrupter switch or fault
interrupter is grounded�
7�
BACKFEED� Bushings, cables, load-interrupter
switches, and fault interrupters may be energized
by backfeed�
8� DE-ENERGIZING, TESTING, AND GROUNDING�
Before touching any bushings or components inside
the switchgear that are to be inspected, replaced,
serviced, or repaired, always disconnect load-
inter rupter switches and fault interrupters from all
power sources (including backfeed), test for voltage,
and properly ground�
9�
TESTING� Test the bushings for voltage using the
Voltage Indication feature (if furnished) or other
proper high-voltage test equipment before touching
any bushings or components inside the switchgear
that are to be inspected, replaced, serviced, or
repaired�
10� GROUNDING�
•
Make sure the switchgear tank and pad-mounted
enclosure are properly grounded to the station
or facility ground� Improper grounding will cause
equipment damage�
•
After the switchgear has been completely
discon nected from all sources of power and tested
for voltage, properly ground the load-interrupter
switches and fault interrupters before touching any
bushings or components inside the switchgear
that are to be inspected, replaced, serviced, or
repaired�
11�
LOAD-INTERRUPTER SWITCH AND FAULT-
INTERRUPTER POSITION�
•
Always confirm the Closed/Open/Grounded
position of load-interrupter switches and fault
interrupters by visually observing the position of
the blades�
•
Load-interrupter switches and fault interrupters
may be energized by backfeed�
•
Load-interrupter switches and fault interrupters
may be energized in any position�
12�
MAINTAINING PROPER CLEARANCE� Always
maintain a proper clearance from energized
bushings�
Safety Precautions

S&C Instruction Sheet 682-510 7
Components
Overview of Components
Remote supervisory Vista Underground Distribution
Switchgear features load-interrupter switches for switch-
ing 600-ampere main feeders; microprocessor-controlled,
resettable, vacuum fault interrupters for switching and
protection of 600-ampere main feeders; and 200-ampere
taps, laterals, and subloops. These elbow-connected
components are enclosed in a submersible, gas-insulated,
hermetically sealed welded-steel tank.
The three-position (CLOSED/OPEN/GROUNDED) load-
interrupter switches are manually operated and provide
three-pole live switching of 600-ampere three-phase
circuits. These switches also provide a visible gap when
open and internal grounding for all three phases. When
they are fitted with motor operators and controls, these
switches can be electrically operated via local operation
pushbuttons. The user may also control the motor opera-
tors for the load-interrupter switches remotely when a
remote terminal unit (RTU) and communication device
are integrated with the remote supervisory Vista motor
operators and controls.
The 200-ampere and 600-ampere fault interrupters
feature resettable vacuum interrupters in series with
manually operated three-position (CLOSED/OPEN/
GROUNDED) disconnects for isolation and internal
grounding of each phase. Fault interrupters provide single-
pole or three-pole fault interruption and manual single-pole
(standard) or three-pole (optional) live switching of load
circuits. Fault interruption is initiated by a programma-
ble overcurrent control. Conversion from single-pole trip
control to three-pole trip control is accomplished using a
personal computer. See S&C Instruction Sheet 681-530
for instructions on programming the control. The
three-pole fault interrupters may be fitted with motor
operators and controls so they may be electrically operated
via local operation pushbuttons. The user may also control
the motor operators for the three-pole fault interrupters
remotely when an RTU and a communication device are
integrated with the remote supervisory Vista motor opera-
tor and controls.
When the optional voltage indicator (option suffix
“-L1” or “-L2”) is specified, all routine operating tasks—
switching, voltage testing, and grounding—can be
accomplished by a single person without cable handling
or exposure to high voltage. Cable testing for faults can
be performed through the back of a user-supplied elbow
with an insert or feedthrough bushing insert, eliminating
the need for cable handling or parking stands. Refer to
Figures 1 through 7 on pages 7 through 9 for the location
of components.
Figure 3� Wet-vault and
UnderCover™ Style gear low-volt-
age enclosure�
Mounting brackets for mounting
enclosure to a wall or on a post
S&C’s Ultradur II
Outdoor Finish
S&C’s Ultradur® II
Outdoor Finish
S&C’s Ultradur II
Outdoor Finish
Figure 2� Dry-vault-mounted
style gear low-voltage
enclosure�
Operation compartment
Termination
compartment
Low-voltage
compartment
Removable panel for
access to viewing
windows and operating
mechanisms
Padlockable hinged roofs for access to operation
and termination compartments
Figure 1� Pad-mounted style gear�
Pentahead bolt

8 S&C Instruction Sheet 682-510
Components
Figure 4� The Open position indication on the motor
operator�
Figure 6� The motor operator control rack�
Operation
counter
PUSH-TO-TEST
LAMPS button
Receptacle for portable
remote control
Operation pushbuttons
Battery
charger
LOCAL/REMOTE switch
Position-
indicating
LEDs
Figure 5� The low-voltage enclosure�
User-specified RTUs (optional)
User-specified communication
device (optional)
Motor operator
control boards
POWER switch
Operation selector
Operating disk

S&C Instruction Sheet 682-510 9
Components
Figure 7� The termination side and top of switchgear�
Top of
switchgear
Optional VOLTAGE indica-
tor with phasing (option
suffix “-L2”) includes
liquid-crystal display
indicating when voltage is
present
Insulating-gas
pressure gauge is
located inside the tank
and is visible through
the viewing window Gas-fill port●
Operating mechanism
is padlockable in any
position
Viewing window
allows operator
to see open gap,
Grounded position,
and bus ground of
the load-interrupter
switch or fault
interrupter
Operation selector prevents inadvertent
operation from the Closed position directly
to the Grounded position, and vice versa
S&C overcurrent control
Manual operating
handle
Viewing window under the
VOLTAGE indicator
TRIP indicators
for single-pole
fault interrupters
TRIP indicator
for three-pole
fault
interrupters
Fault-interrupter terminals
are equipped with 200-ampere
bushing wells� Optional
600-ampere bushings (option
suffix “-M2” or “-M3”) are available
Submersible tank Switch terminals are equipped
with 600-ampere bushings or
optional 200-amp bushing wells
Termination side of switchgear
●The gas-fill port is field-accessible for SF6models� For Vista Green switchgear models, the gas-fill port is designed to prevent field-refilling�

10 S&C Instruction Sheet 682-510
Components
OK TO
OPERATE
D
T
A
R
E
P
O
T
O
N
O
E
3
1
6
S
S
T
U
B
E
A
N
D
C
O
N
N
E
C
T
I
O
N
GAS
PRESSURE
CONFIRM OPERATE
CONTACT S&C
Understanding the Gas-Pressure Gauge
Vista switchgear incorporates a temperature-compensated
gas-pressure gauge inside the tank to provide indication of
the insulating-gas pressure. The gas-pressure gauge includes
four distinct color-coded zones. See Figures 8 and 9.
If the needle is within a particular zone as described
below, it indicates the following:
Green zone:
The Vista switchgear unit is OK to operate.
Green/Yellow zone:
The Vista switchgear unit may have lost some gas but is
still OK to operate. For SF6models: The unit should be
evaluated to determine whether it needs to be relled with
SF
6
gas via the eld-accessible ll port and repaired accord-
ingly. Contact S&C for assistance.
Vista Green switchgear models are hermetically
sealed. The gas-ll port is not accessible in the
eld as standard. Contact S&C for assistance.
Red zone:
The insulating gas may be below the minimum operating
pressure for the gear. Vista switchgear should not be
operated if the needle is in the Red zone. Contact S&C
Electric Company for assistance.
Orange zone:
The Vista switchgear unit has been overlled or has a defec-
tive pressure gauge. For SF6models and eld-accessible
ports, an external gauge can be used instead to verify the
gas pressure before operation of the device. Contact S&C
for assistance.
Vista Green switchgear models are hermetically
sealed. The gas-ll port is not accessible in the
eld as standard. Contact S&C for assistance.
Figure 8� The internal gas-pressure gauge for most SF6
models�
Figure 9� The internal gas-pressure gauge for Vista Green
switchgear models, “-GRN” catalog numbers�
Red
zone
Green/ Yellow
zone
Green
zone
Orange
zone

S&C Instruction Sheet 682-510 11
Components
Gauge Needle Fluctuations from Rapid
Ambient Temperature Changes
When the Vista switchgear tank experiences rapid changes
in ambient temperature, the gas-pressure gauge needle may
temporarily move to indicate a higher gas pressure when
the tank is rapidly cooled or at a lower gas pressure when
the tank is rapidly heated. This phenomenon may occur, for
instance, with sudden, direct exposure to intense sunlight.
The gas-pressure gauge uses a small reference gas
chamber filled with helium to compensate for ambient
temperature and altitude without applying correction
factors. The gauge indicates tank pressure by measuring
the pressure differential between the gas in the tank and
the gas in the gauge. When the tank experiences rapid
ambient temperature changes, the smaller volume of gas
inside the gauge can change temperature more quickly
than the larger volume of gas in the tank, which can lead to
temporary movement of the needle. When the temperature
stabilizes, the needle will return to its previous position
within 1-2 hours.
For SF6units: If a sudden drop or increase in pressure
is seen on the gauge, S&C recommends checking with an
external gauge or waiting for ambient temperature condi-
tions to stabilize to confirm that the needle has returned
to its nominal position.
Vista Green switchgear models are hermetically
sealed. The gas-ll port is not accessible in the
eld as standard. Contact S&C for assistance.

12 S&C Instruction Sheet 682-510
Operation
Figure 12� The window cover lifts for viewing of switch or
fault-interrupter blade positions�
Figure 10� The internal SF6-gas pressure gauge�
Manually Opening, Closing, or
Grounding a Way
WARNING
Do not operate this switchgear if the SF6-gas
pressure gauge is in the Red zone� Failure to follow
this precaution can result in a flashover, injury, and
equipment damage�
Make sure the insulating-gas pressure gauge is in the
Green zone (or the Green-and-Yellow striped zone) by lifting
the viewing window cover on way one. See Figures 10 and 11.
Note: If the SF6-gas pressure gauge is in the Green-and-
Yellow striped zone, the switchgear can be operated but
the tank must be repaired (if necessary) and relled with
SF6gas as soon as possible.
Note: If the Vista Green switchgear gas is in the
Green-and-Yellow striped zone, the switchgear
can be operated but must be serviced. Contact
S&C for assistance.
STEP 1� Open the viewing window cover and conrm
the position of the load-interrupter switch or the
three-pole fault interrupter by visually observing
the position of the blades. SeeFigures12 and
13 on page 13.
Also, inspect the current-carrying components
inside the tank for any signs of abnormalities
but specifically for disconnect blade alignment,
contact finger position, and dislodged hardware.
WARNING
DO NOT operate the energized load interrupter
switch or fault interrupter if it has dislodged
hardware, or obvious signs of arcing or
blade misalignment� Failure to follow this
precaution can result in an injury or
equipment damage�
Figure 11� The internal gas-pressure gauge for Vista Green
switchgear models, “-GRN” catalog numbers�
OK TO
OPERATE
D
T
A
R
E
P
O
T
O
N
O
E
3
1
6
S
S
T
U
B
E
A
N
D
C
O
N
N
E
C
T
I
O
N
GAS
PRESSURE
CONFIRM OPERATE
CONTACT S&C

S&C Instruction Sheet 682-510 13
Operation
Figure 15� Rotate the operation selector out of the way�
Figure 14� The operation selector In the far right position�
STEP 2� Remove the electrical-operation mechanical
blocking key from the motor operator. Verify the
operation selector is in the far right position. This
allows operation between Closed and Open posi-
tions (see Figure 14) and prevents inadvertent
operation directly from the Closed position to/
from the Grounded position.
STEP 3� If the operation selector is blocking operation,
remove the electrical-operation mechanical
blocking key from the motor operator and rotate
the operation selector out of the way, as shown
in Figure 15.
Figure 13� Confirm the blade positions�
WARNING
ALWAYS confirm the position of switches or fault
interrupters by VISUALLY OBSERVING blade position�
Failure to follow this precaution can result in an
injury or equipment damage�
WARNING
G-6694 SIDE 1
ALWAYS confirm the position of switches or fault interrupters by
VISUALLY OBSERVING blade position.
See Other Side for Phasing Instructions
CLOSED OPEN GROUNDED
Operation selector

14 S&C Instruction Sheet 682-510
Operation
STEP 4� In the far left position, the operation selector
allows operation between the Open and
Grounded positions. See Figure 16. The opera-
tion selector in this position prevents inadvertent
manual operation directly from the Grounded
position to the Closed position.
STEP 5� Insert the manual operating handle into the notch
of the motor operator operating mechanism, as
shown in Figure 17.
STEP 6� Rotate the manual operating handle in the
appropriate direction to open, close, or ground
the load-interrupter switch or three-pole fault
interrupter. Operation to the Open position is
shown in Figure 18.
Figure 17� Insert the manual operating handle�
Figure 18� Rotate the manual operating handle�
Manual operating handle Operating mechanism
Recharge line
Figure 16� The operation selector in the far left position�

S&C Instruction Sheet 682-510 15
Operation
Figure 19� The motor operator recharged and in the Open
position�
STEP 7� When operating from Closed to Open position,
the operating handle must be rotated all the way
to the line, as shown on the label to recharge the
mechanism. See Figure 18 on page 14. For the
three-pole fault interrupter, the operating handle
cannot be removed until the mechanism is fully
charged. See Figure 19.
For single-phase fault interrupters: When
the fault-interrupter is operated from the Closed
position, it will move to the Open position before
the TRIP indicator will appear. To reset the
TRIP indicator:Operate by going from the
Open position back to the Closed position.
For three-phase fault interrupters: When
the fault-interrupter is operated from the Closed
position, it will move toward the Open position
and the TRIP indicator will immediately appear
after the indicator leaves the Closed position. To
reset the trip indicator:Continue operating
until the Open position is reached.

16 S&C Instruction Sheet 682-510
Operation
Figure 20� Rotating the operation selector to far left
enables operation to Grounded position�
Figure 21� Grounding the load-interrupter switch (or fault
interrupter)�
WARNING
ALWAYS make sure the cables connected to the load-
interrupter switch or fault interrupter are de-energized
before grounding the switchgear� Failure to
follow this precaution can result in a flashover and
equipment damage�
STEP 8� If operation is to the Grounded position, rotate
the operation selector to the far left and make
sure the cables connected to the load-interrupter
switch or fault interrupter are de-energized. See
Figure 20. Check for voltage using the optional
VOLTAGE indicator (option sufx “-L1” or “-L2”)
as instructed under the “Checking for Voltage
Using Optional Voltage Indicator” section on
page 24, or use an alternate method.
STEP 9� Open the viewing window cover again and
confirm the position of the load-interrupter
switch or the three-pole fault interrupter by
visually observing the position of the blades.
Use the manual operating handle to move the
switch to the Grounded position. See Figure 21.
Note: Replace the electrical operation mechanical blocking
key when nished operating the gear with the manual oper-
ating handle.
Locking Out Grounded Position
To prevent operation of a motor operator into the
Grounded position, insert a padlock through the
operation selector and the right-side hole of the locking
collar. See Figure 22.
Figure 22� Locked out of Grounded position�
Locking collar
Operation selector

S&C Instruction Sheet 682-510 17
Operation
Locking In Closed, Open, or Grounded
Position
To lock a motor operator into position, insert a padlock
through the operating mechanism and the center hole in
the locking collar. See Figures 23 through 25.
Figure 24� Locked in the Open position�
Figure 25� Locked in the Grounded position�
Figure 23� Locked in the Closed position�
Locking collar
Operating
mechanism

18 S&C Instruction Sheet 682-510
Operation
Electrically Opening, Closing, or Grounding
aWay
NOTICE
When electrically operating a way using a motor
operator more than two times in succession (for
example, running multiple operations during a testing
sequence), allow a 15-second period between each
successive operation� Not allowing a 15-second rest
period between operations may result in a missed
operation�
STEP 1� The controls for the motor operators are located
in the low-voltage compartment or enclosure.
Each motor operator is controlled by a separate
control board that includes Close, Open, and
(optionally) Ground operation pushbuttons,
switch position indicating lamps, an operations
counter, a PUSH TO TEST LAMPS button, and
a receptacle for the portable remote control.
See Figure 26.
STEP 2� Turn the LOCAL/REMOTE switch to the Local
position. See Figure 26.
STEP 3� Verify the position-indicating lamp on the control
board matches the position of its associated
motor operator. See Figures 27 and28.
Figure 26� The motor operator control rack�
Figure 27� The Close position indicator on the motor
operator�
Figure 28� The Close position indicator on the motor
control board matches the motor operator position�
LOCAL/REMOTE switch
CLOSE LED

S&C Instruction Sheet 682-510 19
Operation
Figure 29� Remove the operating handle�
STEP 4� Make sure the operating handle is removed from
the operating disk of the motor operator. See
Figure 29.
STEP 5� Make sure the electrical-operation mechanical
blocking key is set in the motor operator operat-
ing disk. See Figure 30.
Figure 30� Replace the electrical-operation mechanical
blocking key�
Manual operating
handle
Stop position

20 S&C Instruction Sheet 682-510
Operation
STEP 6� If the operation selector is blocking operation,
rotate the operation selector out of the way,
as shown in Figure 31. It may be necessary to
remove the electrical-operation mechanical
blocking key to move the operation selector.
The operation selector prevents inadvertent
operation of the motor operator. Replace the
mechanical blocking key. See Figures 32 and33.
Figure 31� Rotate the operation selector out of the way�
Figure 32� In the far right position, the operation selector
allows operation between the Closed and Open positions�
Figure 33� In the far left position, the operation selector
allows operation between Open and Grounded positions�
Operation selector