January 23, 2017
© S&C Electric Company 1993-2017, all rights reserved
Instruction Sheet 716-504
S&C Series 2000 Circuit-Switchers
Outdoor Transmission
Model 2020 — With Vertical Interrupters
and Side-Break Power-Operated Disconnect
69 kV through 138 kV
Installation And Operation
Table of Contents
Section Page Section Page
Introduction
Qualified Persons ..............................2
Read this Instruction Sheet
.......................2
Retain this Instruction Sheet
......................2
Proper Application
..............................2
Usual Operating Conditions
......................2
Special Warranty Provisions
......................3
Warranty Qualifications
..........................3
Safety Information
Understanding Safety-Alert Messages ..............4
Following Safety Instructions
.....................4
Replacement Instructions and Labels
...............4
Location of Safety and Instruction Labels and Tags
5
Safety Precautions .......................... . 7
Shipping and Handling
Inspection ....................................8
Packing
......................................8
Storage
......................................9
Installation
Before Starting ...............................11
Installing the Mounting Pedestals and
High-Speed Base
...........................11
Installing the Operator
.........................14
Installing the Disconnect Pole-Units
...............16
Installing the Interrupters
.......................18
Installation—Continued
Connecting the Operator and Pole-Units to the
High-Speed Power Train
.....................21
Connecting Conductors
........................27
Remove the Interrupter Containers
................27
Setting up the Operator and Checkout
.............28
Adjusting Auxiliary-Switch Contacts
...............33
Operation
Understanding Trip-Free Operation ................34
Electrical Operation
...........................34
Manual Operation
.............................35
Decoupling
..................................36
Understanding the Gas-Pressure Indicator and
Safety Relief Device
.........................37
Understanding the Optional Remote
Gas-Density Monitor
........................37
Inspection Recommendations
...................37
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