January 20, 2020
© S&C Electric Company 1999-2020, all rights reserved
Instruction Sheet 682-510
Remote Supervisory Vista
®
Underground Distribution Switchgear
Pad-Mounted, Dry-Vault-Mounted, Wet-Vault-Mounted, and Undercover™ Styles
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
Overview of Components . . . . . . . . . . . . . . . . . . . . . 6
Understanding the Gas Pressure Gauge . . . . . . . . . 9
Gauge Needle Fluctuations from Rapid
Ambient Temperature Changes . . . . . . . . . . . . . . . 9
Operation
Manually Opening, Closing, or Grounding a Way . .10
Locking Out Grounded Position . . . . . . . . . . . . . . . .14
Locking In Closed, Open, or Grounded Position . . .15
Electrically Opening, Closing, or
Grounding a Way . . . . . . . . . . . . . . . . . . . . . . . . . .16
Motor Operator Decoupling . . . . . . . . . . . . . . . . . . 20
Checking for Voltage Using Optional
VOLTAGE Indicator . . . . . . . . . . . . . . . . . . . . . . . 22
Low-Voltage Phasing Using Optional
VOLTAGE Indicator with Phasing . . . . . . . . . . . . 25
Maintenance
Components . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
Returning Equipment to Service . . . . . . . . . . . . . . . 28
Enclosure Finish . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
Maintenance Recommendations in
Extremely Corrosive Environments . . . . . . . . . . . 29
Dielectric Testing
Routine Switchgear Testing . . . . . . . . . . . . . . . . . . 30
Cable Testing and Fault Locating . . . . . . . . . . . . . . .31
Fault Interrupter Testing . . . . . . . . . . . . . . . . . . . . . 31
Resistance Measurement . . . . . . . . . . . . . . . . . . . . 32
Section Page
Section Page
Table of Contents
Operation
