S&C Alduti-Rupter Installation Manual
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S&C Alduti-Rupter Installation Manual

S&C Alduti-Rupter Installation Manual

Three-pole vertical-break style rotating operating mechanism
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S&C Alduti-Rupter® Switches
Outdoor Distribution (14.4 kV and 25 kV)

Table of Contents

Section
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
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Inspection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Packing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Handling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
December 12, 2016
© S&C Electric Company 1961-2016, all rights reserved
Three-Pole Vertical-Break Style
Rotating Operating Mechanism
Installation
Page
Section
Installation
Before Starting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Mounting to Wood . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Operating Pipe Preparation . . . . . . . . . . . . . . . . . . . . . . 9
Attaching Couplings to the Switch Poles . . . . . . . . . . . . 10
Installing the Interphase Operating Pipe . . . . . . . . . . . . 14
Installing the Vertical Operating Pipe . . . . . . . . . . . . . . 15
Checking Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
Connecting High-Voltage Conductors . . . . . . . . . . . . . . 26
Opening and Closing the Switch . . . . . . . . . . . . . . . . . . 27
Instruction Sheet 761-515
Page

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Summary of Contents for S&C Alduti-Rupter

  • Page 1: Table Of Contents

    S&C Alduti-Rupter® Switches Three-Pole Vertical-Break Style Outdoor Distribution (14.4 kV and 25 kV) Rotating Operating Mechanism Installation Table of Contents Section Page Section Page Introduction Installation Qualified Persons . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 Before Starting .

  • Page 2: Introduction

    Safety Precautions on pages 4 through 6 . The latest version of this publication is available online in PDF format at sandc.com/Support/Product-Literature.asp. Retain this This instruction sheet is a permanent part of your S&C Alduti-Rupter Switch. Designate a location where you can easily retrieve and refer to this publication. The latest version is Instruction Sheet available online in PDF format at sandc.com/support/product–literature.asp...

  • Page 3: Warranty

    GOODS, OR ANY REMEDIAL PROMISE INCLUDED IN PRICE SHEET 150. Warranty The standard warranty is applicable to the S&C Alduti-Rupter Switch detailed in this instruction sheet except when it is power operated using a switch operator of other than Qualifications S&C manufacture.

  • Page 4: Understanding Safety Alert Messages

    Safety Precautions Understanding Several types of safety-alert messages may appear throughout this instruction sheet and on labels and tags attached to the Alduti-Rupter Switch. Familiarize yourself with these Safety-Alert types of messages and the importance of these various signal words:...

  • Page 5: Location Of Safety Labels

    Safety Information Location of Safety Labels and Tags WARNING INSTALLATION OF PIERCING SET SCREWS (See illustrations on reverse side of tag) 1. Be sure that cutting tip of piercing set screw does not protrude through the coupling body before installing operating pipe. 2.

  • Page 6: Safety Precautions

    Safety Precautions DANGER Alduti-Rupter Switches operate at high voltage. Failure to observe these precautions will result in serious personal injury or death. Some of these precautions may differ from company operating procedures and rules . Where a discrepancy exists, users should follow their company’s operating procedures and rules .

  • Page 7: Shipping And Handling

    2. Operating pipe sections for interphase, horizontal-connecting, and vertical sections. (The switch may be furnished “less operating pipe,” if specified.) 3. Miscellaneous mounting hardware (less through bolts) for securing the Alduti-Rupter Switch to the mounting structure 4. The appropriate set of operating mechanism components for the vertical operating pipe;...

  • Page 8: Handling

    Shipping and Handling 6. Erection Drawing: A detailed erection drawing (ED) for the Alduti-Rupter Switch will be found in a water-resistant envelope shipped with the switch. If a standard mounting arrangement is to be used, this erection drawing is a printed sheet. This same sheet is also furnished when a standard minor modification of a standard mounting arrangement is used.

  • Page 9: Before Starting

    Installation Before Starting NOTICE Drawings for standard mounting arrange- ments show only the minimum or suggested locating dimensions for the outboard bearing assembly, vertical-operating-pipe guide bearings and the operating-handle assembly . Specific locations are to be determined either at the job site or by the user’s engineering department .

  • Page 10: Attaching Couplings To The Switch Poles

    Installation Step 1 Remove the switch poles from their crates and arrange them on the ground in the same order in which they will be mounted on the structure. When applicable, arrange the outboard bearing assembly or assemblies in the same manner. Protect the switch poles and bearings Operating lever from contamination by dirt, mud, oil, etc.
  • Page 11 Installation Step 3 For switches that are directly connected to the Main contact vertical operating pipe, attach a pipe-to-switch bearing type universal coupling to the rotating Opening lever shaft extending below the switch base. See Figure 5. Interrupter Shunt contact Adjustable pipe coupling Open stop...

  • Page 12: Attaching Couplings To Outboard Bearings

    Installation Attaching Couplings to Connecting pipe section Outboard Bearings Outboard bearing Clamp bolts crank-arm (adjustable) Use the following steps to attach couplings to the outboard bearings: Step 4 Attach pipe coupling(s) to the outboard bearing assembly (or assemblies) in accordance with Outboard bearing base the item numbers specified on the erection Stop bolt...

  • Page 13: Installing Pipe Couplings With Piercing Set Screws

    Installation Hoist the individual switch pole-units and bolt them into position on the pole or structure as shown on the erection drawing. The pole-units should be carefully aligned on the structure. Make sure the surface to which the bases are mounted is flat, level, and plumb to avoid twisting the bases when they are bolted to the structure.

  • Page 14: Installing The Interphase Operating Pipe

    Installation Installing the Interphase Operating Pipe Step 8 NOTICE To minimize time-consuming final adjust- ments after installation, make sure that the switch poles are in their fully Closed position and their toggle mechanisms are against their closed stops during installation of both the interphase and vertical operat- ing-pipe sections .

  • Page 15: Installing The Vertical Operating Pipe

    Installation Installing the Vertical Operating Pipe Step 9 S&C recommends making up each coupling connection as work progresses from the top down. Starting with the universal coupling connecting the switch to the upper section of vertical operating pipe, and continue with the coupling between the upper section of vertical operating pipe and the first lower section.
  • Page 16 Installation Step 11 Position and install the guide-bearing assembly on the pole or structure in accordance with the dimension shown on the erection drawing. See Figure 11. Guide-bearing assembly Figure 11. Install the guide-bearing assembly. Step 12 Pass the next section of vertical operating pipe up through the guide bearing and then through the thrust bearing.
  • Page 17 Installation Step 13 Install a guide bearing assembly with each additional vertical operating-pipe section posi- tioned in accordance with the dimension shown on the erection drawing. See Figure 13. Thrust bearings are only necessary on the uppermost guide bearing. Use rigid couplings to join these Rigid coupling additional pipe sections.

  • Page 18: Installing The Rotating Operating Handle

    Installation Installing the Rotating Operating Vertical operating Handle pipe Piercing set screws (2) When a key interlock is used (standard minor Operating handle modification suffix “-S6”), skip to Step 18 on assembly page 29. When a Type AS-1A Switch Operator is used (standard minor modification suffix “-S8”...

  • Page 19: Installing Operating Handle With Key Interlock

    Installation Step 17 Fasten the free end of the grounding strap to the lowest pipe section a few inches above the operating-handle assembly (or key interlock) with the U-bolt connector provided for this purpose. See Figure 16. Connect the lower end of the strap to a suitable earth ground using the grounding connector provided at the end of the strap.
  • Page 20 Installation Step 19 Bolt the foot-bearing assembly to the pole at the position shown on the erection drawing. Use one of the mounting bolts to attach one end of the grounding strap (the end with the grounding connector attached) to the foot- bearing assembly.
  • Page 21 Installation Step 21 Hold the locking disc 3/8-inch below the interlock bracket, and drill 7/16-inch diameter holes through the vertical operating pipe section, using the holes in the locking disc collar as a guide. Attach the locking disc to the pipe using ⅜-inch the 3/8–16 ×...

  • Page 22: Checking Alignment And Adjusting The Stop Plates

    Installation Checking Alignment and Adjusting the Stop Plates Step 23 NOTICE Slotted holes The switch should be opened and closed slowly only when checking for alignment and complete closure . Open stop plate When opening or closing the switch in service, do not slow down or stop part way .
  • Page 23 Installation To adjust the closed stop-plate: (a) Loosen the hardware securing the closed stop-plate. See Figure 22 on page 22. (b) The stop plate holes are slotted to allow room for adjustment. Position the operating handle in the stop plate and turn the operating handle as far as it will go in the Closed position.

  • Page 24: Checking Operation

    Installation Checking Operation (e) When an S&C Switch Operator—Type AS-1A or an S&C 6801M Automatic Switch Operator is used, Step 27 verify that with the switch fully closed there is a clearance of approximately ⅛-inch between the NOTICE outboard bearing crank-arm and its stop bolt. This Open and close the switch slowly ONLY when checking clearance is essential to prevent bending of the stop the operation or making adjustments to the de-energized...
  • Page 25 Installation Figure 26. Operation checkpoints. S&C Instruction Sheet 761-515...

  • Page 26: Connecting High-Voltage Conductors

    Installation Step 29 Attach the danger label to the pole or structure using two straps or bolts (user-furnished). See Figure 27. Position the danger label within three feet of the switch pole-units and in full view of line crews when viewed from the front of the switch. For switches that mount on two poles, attach another danger label to the second pole in the same manner.

  • Page 27: Operation

    Opening and Closing the Switch DANGER The interrupters and terminal pads of the Alduti-Rupter Switch may be energized from either side of the switch with the interrupters in any position . Before inspecting, servicing, or repairing this switch or working on the...

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