Alduti-Rupter
®
Switches
Outdoor Distribution (25/34.5 kVand 34.5 kV
★
)
Three-Pole Vertical-Break Style
Reciprocating Operating Mechanism
June 29, 2020
© S&C Electric Company 1977-2020, all rights reserved
Instruction Sheet 761-525
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
Operating Considerations . . . . . . . . . . . . . . . . . . . . . 2
Warranty . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Warranty Qualifications . . . . . . . . . . . . . . . . . . . . . . 3
Safety Information
Understanding Safety-Alert Messages . . . . . . . . . . . 4
Following Safety Instructions . . . . . . . . . . . . . . . . . . 4
Replacement Instructions and Labels . . . . . . . . . . . 4
Location of Safety Labels . . . . . . . . . . . . . . . . . . . . . 5
Safety Precautions
. . . . . . . . . . . . . . . . . . . . . . . . . 6
Shipping and Handling
Inspection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Packing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Handling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Installation
Mounting to Wood . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Uncrating the Switch . . . . . . . . . . . . . . . . . . . . . . . . . 9
Attaching Couplings to the Switch Poles . . . . . . . . . 9
Mounting the Support Members . . . . . . . . . . . . . . .10
Lifting the Switch . . . . . . . . . . . . . . . . . . . . . . . . . . .10
Installing Pipe Couplings with Piercing
Set Screws . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12
Installing the Interphase Pipe . . . . . . . . . . . . . . . . . .13
Installing the Vertical Operating Pipe . . . . . . . . . . . .14
Installing the Operating Handle . . . . . . . . . . . . . . . .15
Checking Alignment . . . . . . . . . . . . . . . . . . . . . . . . .17
Installing the Key Interlock . . . . . . . . . . . . . . . . . . . .18
Checking Operation . . . . . . . . . . . . . . . . . . . . . . . . .19
Connecting the High-Voltage Connectors . . . . . . . 25
Operation
Opening and Closing the Switch . . . . . . . . . . . . . . 26
★
Also applicable to three-pole vertical-break style switches rated 14 .4 kV, 2400 amperes continuous .
