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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

Summary of Contents for Pad-Mounted Series

Page 1: ...et 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 Loca...

Page 2: ...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...

Page 3: ...ecautions 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...

Page 4: ...eet 681 525 Location of Safety Labels Reorder Information for Safety Information Location Safety Alert Message Description Part Number A CAUTION Never Drill Into Housing G 10043 B CAUTION Not Designed...

Page 5: ...HANISM 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...

Page 6: ...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...

Page 7: ...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 le...

Page 8: ...tion 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...

Page 9: ...ated 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...

Page 10: ...er 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 pow...

Page 11: ...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...

Page 12: ...2 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 SF6 gas as soon as possible S...

Page 13: ...e motor operator and reposition the selector lever If operation is to be to the Grounded posi tion make sure the cables connected to the load interrupter switch or single pole or three pole fault inte...

Page 14: ...off the operat ing shaft of the gear See Figure 16 NOTICE The portable motor operator is not intended for permanent installation STEP 14 Beforestoringtheportablemotoroperatorinits carrying case be su...

Page 15: ...lt 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...

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