S&C Pad-Mounted Series Owner's manual

Vista®Underground
Distribution Switchgear
Pad-Mounted, Vault-Mounted, and UnderCover™ Styles
September 9, 2019
© S&C Electric Company 2001-2019, all rights reserved Instruction Sheet 681-525
Installation and Operation
of Portable Motor Operator
Table of Contents
Section Page Section Page
Introduction
Qualified Persons ........................... 2
Read this Instruction Sheet ................... 2
Retain this Instruction Sheet. . . . . . . . . . . . . . . . . . . 2
Proper Application .......................... 2
Warranty .................................. 2
Safety Information
Understanding Safety-Alert Messages........... 3
Following Safety Instructions .................. 3
Replacement Instructions and Labels ........... 3
Location of Safety Labels ..................... 4
Safety Precautions ......................... 5
Components
General ................................... 6
Installation
Installing the Portable Motor Operator ........... 7
Operation
Opening, Closing, or Grounding. ...............12
Removal
Removing the Portable Motor Operator ..........14
Troubleshooting
If the Remote Control READY Light
Does Not Light. ..........................15
Fault Conditions on the S&C-Furnished Ac-Input
Power Supply ............................15

2S&C Instruction Sheet 681-525
Introduction
Qualified Persons WARNING
The equipment and components covered by this publication must be installed,
operated, and maintained by qualified persons who are knowledgeable in the
installation, operation, and maintenance of underground electric power distribution
equipment along with the associated hazards. A qualified person is one 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 the special precautionary techniques, personal protective
equipment, insulating 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.
Read this
Instruction Sheet NOTICE
Thoroughly and carefully read this instruction sheet and all materials included in the
product’s instruction handbook before installing or operating your Visa Underground
Distribution Switchgear and portable motor operator. Be familiar with the Safety
Information and Safety Precautions on pages 3 through 5. The latest version of
this publication is available online in PDF format at sandc.com/en/support/
product-literature/.
Retain this
Instruction Sheet
This instruction sheet is a permanent part of your Vista Underground Distribution
Switchgear. Designate a location where you can easily retrieve and refer to this publication.
Proper Application WARNING
The equipment in this publication is only intended for a specific application. The
application must be within the ratings furnished for the equipment. Ratings for the Visa
Underground Distribution Switchgear are listed in the ratings table in Specification
Bulletin 681-31. The ratings are also on nameplate affixed to the product.
Warranty 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.)

Safety Information
S&C Instruction Sheet 681-525 3
Understanding
Safety-Alert
Messages
Several types of safety-alert messages may appear throughout this instruction sheet
and on labels and tags attached to the Vista Underground Distribution Switchgear and
portable motor operator. 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.
Following Safety
Instructions
If you do not understand any portion of this instruction sheet and need assistance, contact
your 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 Monitoring and Support
Center at 1-888-762-1100.
NOTICE
Read this instruction sheet thoroughly and carefully
before installing a portable motor operator to Vista
Underground Distribution Switchgear.
Replacement
Instructions
and Labels
If additional copies of this instruction sheet are needed, contact your 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 your nearest S&C Sales
Office, S&C Authorized Distributor, S&C Headquarters, or S&C Electric Canada Ltd.

Safety Information
4S&C Instruction Sheet 681-525
Location of Safety Labels
Reorder Information for Safety Information
Location Safety Alert Message Description Part Number
ACAUTION Never Drill Into Housing G-10043
BCAUTION Not Designed for Permanent Installation G-10047
A
B

S&C Instruction Sheet 681-525 5
Safety Precautions
DANGER
The portable motor operator used with the Vista Underground
Distribution System contains high voltage. Failure to observe the precautions
below will result in serious personal 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 switches and
controls must be restricted only to qualified persons.
See the “Qualified Persons” section on page 2.
2. SAFETY PROCEDURES. Always follow safe
operating 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 “DANGER,” “WARNING,” “CAUTION,” or
“NOTICE” labels.
5. OPERATING MECHANISM AND BASE. Stored
energy operating mechanism and switch base contain
fast-moving parts that can severely injure fingers. Do
not remove or disassemble operating mechanism, or
remove access panel on switch base unless directed
by S&C Electric Company.
6. ENERGIZED COMPONENTS. Always consider all
parts live until de-energized, tested, and grounded.
7. GROUNDING. Before energization and at all times
when energized, the switch base and control unit
enclosure must be connected to suitable earth ground
in accordancewiththe S&Cinstruction sheet furnished
with this device.
The switch base ground must also be connected to the
system neutral. If the system neutral is not present,
proper precautions must be taken to ensure that the
local earth ground cannot be severed or removed.
8. LOAD-INTERRUPTER SWITCH POSITION. Always
confirm the Open/Close position of load-interrupter
switches by visually observing the indicator.
Interrupters and terminal pads may be energized
from either terminal.
Interrupters and terminal pads may be energized
with the interrupters in any position.
9. MAINTAINING PROPER CLEARANCE. Always
maintain proper clearance from energized
components.

6S&C Instruction Sheet 681-525
Components
The portable motor operator has been carefully designed to allow users to power
operate, from a remote location, load-interrupter switches and single-pole or three-pole
fault interrupters in Vista Underground Distribution Switchgear. The portable motor
operator is a lightweight operator that can quickly and easily be attached without tools
to UnderCover, vault-mounted, and pad-mounted styles of Vista switchgear. The portable
motor operator is not intended for permanent installation.
The portable motor operator includes a carrying case and 50-foot (1524-cm) cable with
remote controls, and it uses power supplied by one of the following:
• A user-furnished 24-Volt battery and battery charger
• An S&C-furnished 24-Volt battery and battery charger
• An S&C-furnished ac-input power supply
General
S&C-furnished ac-input power supply S&C-furnished 24-Volt battery and battery
charger
Remote control
Portable motor operator Carrying case

S&C Instruction Sheet 681-525 7
Installation
Installing the Portable Motor Operator
Follow these steps to install the portable motor operator:
STEP 1. Observe the position of the operating disk and
selector lever on the load-interrupter switch
way or single-pole or three-pole fault-inter-
rupter way to which the portable motor opera-
tor is to be installed. Remove padlocks. See
Figure 1.
If operation is to be from the Closed position
to the Open position or vice versa, place the
selector lever in the Grounded position as shown
in Figure 1. In the far-right position, the selector
lever allows operation between the Closed and
Open positions; inadvertent operation directly
from the Closed position to the Grounded posi-
tion is prevented.
If operation is to be from the Open
position to the Grounded position or vice
versa, place the selector lever in the Blade
Closed position. See Figure 2. In the far-left
position, the selector lever allows opera-
tion between the Open and Grounded posi-
tions; inadvertent operation directly from the
Grounded position to the Closed position
is prevented.
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.
Figure 1. Observe the position of the operating disk and selector
lever.
Operating disk (in Blade Closed position)
Selector lever
(in Blade-
Grounded
position)
Figure 2. Selector lever in the Blade Closed position.
Operating disk (in Blade Open position)
Selector lever
(in Blade
Closed
position)

8S&C Instruction Sheet 681-525
Installation
Before operating to the Grounded position,
always make sure the cables connected to the
load-interrupter switch or fault interrupter are
de-energized. Check for voltage using the POTEN-
TIAL indicator (option suffix “-L1” or “-L2”), if
furnished, as instructed under the “Checking
for Voltage Using Optional Voltage Indication”
section in Instruction Sheet 681-510, 682-510,
or 683 -510.
STEP 2. Adjust the position lever of the portable motor
operator to correspond with the position of the
operating disk observed in Step 1. See Figure 3.
STEP 3. While holding the latching lever in the Open
position, lift the portable motor operator and
place on the operating shaft of the gear. See
Figure 4.
Figure 3. Adjusting the position lever of the portable motor
operator.
Latching lever
Position lever
Operating shaft
Figure 4. Positioning the portable motor operator on the
operating shaft.
Position lever (in the Blade Closed position)

S&C Instruction Sheet 681-525 9
Installation
NOTICE
The position lever of the portable motor operator may
need to be manually rotated slightly from side to side
to allow the output shaft to line up with the operating
shaft on the gear.
STEP 4. When the portable motor operator is seated on
the operating shaft of the gear, release the
latching lever. Make sure the portable motor
operator is fully seated and both latches have
latched onto the stop ring on the tank.
See Figure 5.
STEP 5. Connect the cable with remote controls to the
portable motor operator. See Figure 6.
Figure 6. The connecting cable with remote controls.
Latching lever
Stop ring
Latch
Figure 5. Checking to make sure the portable motor operator is
fully seated and latched.
Cable with remote controls

10 S&C Instruction Sheet 681-525
Installation
STEP 6. Connect the control power cable to the portable
motor operator and to the control power source.
See Figures 7 through 9.
Figure 7. Connecting the control power cable to user-furnished
24-Volt battery.
Figure 8. Connecting the control power cable to S&C-furnished
24-Volt battery.
Figure 9. Connecting the control power cable to S&C-furnished
ac-input power supply.
Control power source (user-
furnished 24-Volt battery shown)
Control power cable
Control power source (S&C-
furnished 24-Volt battery)
Control power cable
Control power
cable
Control power source
(S&C-furnished ac-input
power supply)

S&C Instruction Sheet 681-525 11
Installation
STEP 7. Ifthepowersource isan S&C-furnished ac-input
power supply, insert its three-prong plug into a
grounded 120-Vac power receptacle. Be sure to
check that the LEDs labeled “DC 24V” and
“LOAD 2L+” are lit on the power supply, as
shown in Figure 10. If they are not lit, refer to
Table 1 on page 13 and to the “Troubleshooting”
section on page 15.
STEP 8. Check that the READY light is lit on the
remote control. See Figure 11. It will remain
continuously lit while control voltage is
supplied to the operator. If the READY light is
not lit or is blinking rapidly, refer to the
“Troubleshooting” section on page 15.
Figure 10. LEDs on the S&C-furnished ac-input power supply.
Figure 11. The READY light on the remote control.
Power supply LEDs
READY light

12 S&C Instruction Sheet 681-525
Operation
Opening, Closing, or Grounding
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 and
equipment damage.
STEP 9. Make sure the SF6-gas pressure gauge is in the
green zone (or the green and yellow striped
zone) by lifting the viewing window cover under
Way 1. See Figure 12.
NOTICE
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 refilled with SF6gas as soon
as possible.
STEP 10. Open the viewing window cover and conrm
the position of the load-interrupter switch or
the single-pole or three-pole fault-interrupter
disconnect by visually observing the position of
the blades. See Figures 13 and 14.
Figure 12. The SF6-gas pressure gauge.
Figure 13. The window cover lifts for viewing the switch or fault-
interrupter disconnect blade position.
Figure 14. Confirm the blade position.

S&C Instruction Sheet 681-525 13
Operation
STEP 11.
WARNING
ALWAYS make sure the cables con-
nected 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.
To operate the portable motor operator, press and
hold the ENABLE button on the remote control and
press the appropriate CLOSE, OPEN, or GROUND
pushbutton. See Figure 15.
NOTICE
The READY light on the remote control will
blink while the portable operator is changing
the state of the load-interrupter switch or
fault interrupter. The READY light will stop
blinking and light continuously only when the
switching operation is complete.
If having operated a load-interrupter switch
or a single-pole or three-pole fault interrupter
from the Closed position to the Open position
and now need to operate to the Grounded posi-
tion, remove the portable motor operator and
reposition the selector lever.
If operation is to be to the Grounded position,
make sure the cables connected to the load-
interrupter switch or single-pole or three-pole
fault interrupter are de-energized. Check for
voltage using the POTENTIAL indicator (option
suffix “-L1” or “-L2”), if furnished, as instructed in
the “Checking for Voltage Using Optional Voltage
Indication” section in Instruction Sheet 681-510,
682-510, or 683 - 510.
If having operated a load-interrupter switch or
a single-pole or three-pole fault interrupter from
the Grounded position to the Open position
and now wish to operate to the Closed position,
remove the portable motor operator and reposi-
tion the selector lever.
Refer to Steps 1 through 4 for instructions on
positioning the selector lever and installing the
portable motor operator.
STEP 12. Open the viewing window cover again and
conrm the position of the load-interrupter
switch or single-pole or three-pole fault-inter-
rupter disconnect by visually observing the
position of the blades. See Figures 13 and 14 on
page 12.
Figure 15. The remote control ENABLE button.
Enable Button

14 S&C Instruction Sheet 681-525
Removal
Removing the Portable Motor Operator
Follow these steps to remove the portable motor operator:
STEP 13. To remove the portable motor operator, hold the
latching lever in the Open position and lift the
portable motor operator up, off the operating
shaft of the gear. See Figure 16.
NOTICE
The portable motor operator is not intended
for permanent installation.
STEP 14. Before storing the portable motor operator in its
carrying case, be sure to replace the caps that
protect the power and remote control
connectors. The caps are shown in place in
Figure 16.
STEP 15. Replace the padlocks removed previously in
Step1.
Figure 16. Removing the portable motor operator from the gear.
Latching lever
Connector caps

S&C Instruction Sheet 681-525 15
Troubleshooting
If the Remote Control READY Light Does Not
Light
Follow these steps if the READY light does not light:
STEP 16. Check to make sure the control cable is properly
connected to both the portable motor operator
and the remote control.
STEP 17. Make surethepowercableisproperlyconnected
at both the portable motor operator and the
power supply ends.
STEP 18. If using an S&C-furnished ac-input power
supply, make sure the indicator lights are lit as
detailed in Step 7 on page 11. If they are not lit,
verify that the ac-input power supply is
connected to a properly grounded 120-Volt
power source.
NOTICE
If the READY light blinks rapidly after the
CLOSE, OPEN, or GROUND pushbutton are
pressed, return the unit to S&C for repair.
Fault Conditions on the S&C-Furnished
Ac-Input Power Supply
Follow these steps if a Fault condition occurs on the S&C-
furnished ac-input power supply:
NOTICE
The operating state of the ac-input power supply is
indicated by LEDs on the front of the power supply, as
shown in Table 1.
STEP 19. The S&C-furnished ac-input power supply is
equipped with a Shutdown feature. If a short
circuit develops across the 24-Volt dc output,
the unit will shut itself down for at least 5
minutes. Should this occur, disconnect the
power supply from the 120-Volt ac source.
STEP 20. Wait at least 5 minutes, and then reconnect the
power supply to the 120-Volt ac source.
STEP 21. Verify the appropriate LEDs are lit on the front
cover of the power supply, and then continue
with switching operations.
Table 1. LED Display on the S&C-Furnished
Ac-Input Power Supply
LED
LABELLED LED ON LED FLASHES LED OFF
DC 24 V 24 Vdc across
output terminals
Overload
No output
voltage
– short-circuit
at output
– no source
voltage
present
LOAD 2L+
Motor operator
circuit supplied
with 24 Vdc
TEMP> Not applicable
Shutdown
due to
overheating
Unit
temperature
less than
maximum
allowable