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
