Eaton VacClad-W Instruction Booklet
Eaton VacClad-W Instruction Booklet

Eaton VacClad-W Instruction Booklet

38 kv arc-resistant switchgear indoor housings

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Instruction Booklet IB32267ARC
VacClad-W 38 kV arc-resistant
switchgear indoor housings
Effective December 2010
Supersedes September 2001
Contents
Description
Receiving, handling, and storing . . . . . . . . . . . . . . 2
Installing indoor switchgear . . . . . . . . . . . . . . . . . . 4
Adjusting and testing . . . . . . . . . . . . . . . . . . . . . . 12
Operation of the system . . . . . . . . . . . . . . . . . . . 12
Inspection and maintenance . . . . . . . . . . . . . . . . 13
Lubrication . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Renewal parts . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
A further description of arc-
resistant VacClad-W switchgear . . . . . . . . . . . . . 15
Accessories . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
Primary bus joints field
taping procedure (38 kV) . . . . . . . . . . . . . . . . . . . 25
Read and understand these instructions before
attempting installation, operation, or maintenance
of this equipment . This equipment must be
installed and serviced only by qualified electrical
personnel . Retain this document for future use .
THE SWITCHGEAR DESCRIBED IN THIS BOOK HAS
BEEN DESIGNED AND TESTED TO OPERATE WITHIN
ITS NAMEPLATE RATINGS. OPERATION OUTSIDE
OF THESE RATINGS MAY CAUSE THE EQUIPMENT
TO FAIL, RESULTING IN BODILY INJURY AND
PROPERTY DAMAGE.
THIS INSTRUCTION BOOK HAS BEEN PREPARED
TO HELP ENGINEERS AND TECHNICIANS INSTALL,
OPERATE, AND MAINTAIN TYPE VACCLAD-W
SWITCHGEAR. FOR INFORMATION ON THE
APPLICATION OF THIS TYPE OF SWITCHGEAR, REFER
TO THE PERTINENT ANSI AND EEMAC STANDARDS,
AND TO EATON'S CONSULTING APPLICATION GUIDE.
ALL APPLICABLE SAFETY CODES, SAFETY STANDARDS,
AND SAFETY REGULATIONS MUST BE STRICTLY
ADHERED TO WHEN INSTALLING, OPERATING, OR
MAINTAINING THIS EQUIPMENT.
Page
 CAUTION
 PURPOSE
 DANGER

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Table of Contents
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Summary of Contents for Eaton VacClad-W

  • Page 1: Table Of Contents

    A further description of arc- resistant VacClad-W switchgear . . . . . . . . . . . . . 15 Accessories . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22 Primary bus joints field taping procedure (38 kV) .
  • Page 2: Receiving, Handling, And Storing

    . If the switchgear has been damaged, file a claim as soon as cover it to keep clean . (See section on storage of equipment .) possible with the carrier and notify the nearest Eaton representative . If the switchgear is going to be installed as soon as it has been received, unpack it and handle it according to the procedure outlined in the following paragraphs .
  • Page 3 . 7. Do not store outdoors . 8. Inspect periodically . otee: For detailed instructions on storing switchgear, refer to Eaton drawing 700B214 . A copy of the drawing is attached to each group of switchgear . eaton Corporation www.eaton.com...
  • Page 4: Installing Indoor Switchgear

    VacClad-W 38 kV arc-resistant Instruction Booklet IB32267ARC switchgear indoor housings Effective December 2010 Section 2: installing indoor switchgear 2.2 Details of the installation 2.1 Outline of installation procedure 1. Prepare the foundation . Review the floor plan drawings supplied for the order and the 1.
  • Page 5 Secondary conduit space: All—maximum of 1.00 inch (25.4) projection. Recommended minimum clearance to front of VacClad-W: 84 inches (2133.6). Recommended minimum clearance to LH or RH side of VacClad-W: 38 inches (965.2). Recommended minimum clearance to rear of VacClad-W: 42 inches (1066.8).
  • Page 6 VacClad-W 38 kV arc-resistant Instruction Booklet IB32267ARC switchgear indoor housings Effective December 2010 4. Check the entire lineup to make sure it is level and plumb prior to bolting or welding to the foundation channels . 5. Remove all shipping blocks or braces .
  • Page 7 VacClad-W 38 kV arc-resistant Instruction Booklet IB32267ARC switchgear indoor housings Effective December 2010 7. Connect the high voltage bus between the shipping groups . a. Remove the horizontal metal barriers from the cable compartment in the rear of the switchgear . Remove the bus barrier .
  • Page 8 VacClad-W 38 kV arc-resistant Instruction Booklet IB32267ARC switchgear indoor housings Effective December 2010 Table 2. Bolt Torque Values for Bus Connection Bolt Material—torque in Foot-pounds (nm) Bolt Size in inches (mm) High-Strength Steel Silicon Bronze 0.25 (6.4) 5 (6.78) 5 (6.78) 0.31 (7.9)
  • Page 9 VacClad-W 38 kV arc-resistant Instruction Booklet IB32267ARC switchgear indoor housings Effective December 2010 Figure 8. Insulating Boots 8. Connect the control wires . d. Follow the instructions of the cable manufacturer to deter- mine what minimum bending radii is permitted . Follow the a.
  • Page 10 VacClad-W 38 kV arc-resistant Instruction Booklet IB32267ARC switchgear indoor housings Effective December 2010 CT Bushing Through Boot—1C95085H01 CT Bushing End Boot—1C95086G01 Incoming CT Spout/Riser Boot 1C95094G01 Feeder Auxiliary Spout Boot 1C95095H01 Figure 9. Assembled Switchgear (Shown with Rear Doors Opened) 12.
  • Page 11 VacClad-W 38 kV arc-resistant Instruction Booklet IB32267ARC switchgear indoor housings Effective December 2010 Step 2: Assembly of the front and side vertical arc skirts (Figure 11) . Important: All vertical arc skirts are mounted with the bent flanges pointing outward .
  • Page 12: Adjusting And Testing

    VacClad-W 38 kV arc-resistant Instruction Booklet IB32267ARC switchgear indoor housings Effective December 2010 Section 3: adjusting and testing 1. After the switchgear has been installed and connected to the apparatus it is to control, give it a final check before it is put VT Compartment into service .
  • Page 13: Inspection And Maintenance

    1. High voltage parts necessary; where conditions warrant, a longer period of time VacClad-W switchgear is a metal-clad design . All major parts of between maintenance periods may be used . The following the primary circuit are isolated by grounded metal barriers and descriptions 3–13 require attention .
  • Page 14: Lubrication

    (Figure 17, Item 1) are open to allow natural airflow . These flaps are designed to close automatically during an VacClad-W switchgear is designed so that lubrication is not required internal arcing fault . under normal conditions . However, abnormal local conditions such as high humidity, salt-laden atmosphere, corrosive gases, or severe 11.
  • Page 15: Resistant Vacclad-W Switchgear

    VacClad-W 38 kV arc-resistant Instruction Booklet IB32267ARC switchgear indoor housings Effective December 2010 Section 8: a further description of Type 1C—Type 1 equipment subjected to additional testing and assessment to verify that the internal arcing does not cause arc-resistant VacClad-W switchgear...
  • Page 16 VacClad-W 38 kV arc-resistant Instruction Booklet IB32267ARC switchgear indoor housings Effective December 2010 Arc-resistant features are intended to provide an additional degree 8.2 Description of breaker compartment door features of protection to the personnel performing normal operating duties in and interlocks close proximity to the equipment while the equipment is operating Refer to Figure 17 .
  • Page 17 VacClad-W 38 kV arc-resistant Instruction Booklet IB32267ARC switchgear indoor housings Effective December 2010 5. Levering crank opening 8.3 Opening and closing of breaker compartment door The breaker must be connected and disconnected with the breaker door closed and using the levering crank . With the door closed, lift the cover to expose the hexagon head of the levering-in screw .
  • Page 18 VacClad-W 38 kV arc-resistant Instruction Booklet IB32267ARC switchgear indoor housings Effective December 2010 To close an opened door, follow the steps below: 1. Make sure that the breaker is in the test/disconnected position . 2. With the door at its uppermost position, rotate the door closed .
  • Page 19 Figure 24. VT Compartment Front Cover Assembly  CAUTION 8.5 Safety features Eaton’s VacClad-W switchgear is manufactured with several built-in DO NOT MANUALLY RAISE OR REMOVE SHUTTER UNLESS PRIMARY interlocks . These interlocks are intended to protect persons working CONTACTS ARE DE-ENERGIZED AND SAFETY PROCEDURES HAVE BEEN on the equipment .
  • Page 20 VacClad-W 38 kV arc-resistant Instruction Booklet IB32267ARC switchgear indoor housings Effective December 2010 8.6 Ring-type current transformers The ring-type current transformers are installed over the bus or line side primary bushings, which are located in the main bus compart- ment and line compartment, respectively . Maximum numbers of...
  • Page 21 VacClad-W 38 kV arc-resistant Instruction Booklet IB32267ARC switchgear indoor housings Effective December 2010 8.8 Breaker pan assembly Figure 28. 38 kV Breaker Pan Assembly—Arc Resistant Design Description of Figure 28 callouts 1. Ground bus, keeps breaker frame grounded in all positions .
  • Page 22: Accessories

    VacClad-W 38 kV arc-resistant Instruction Booklet IB32267ARC switchgear indoor housings Effective December 2010 8.9 Voltage transformers with fuses The drawout fused VT assembly (Figure 15) is a removable element, consisting of a voltage transformer(s) with integral fuse(s) installed in a fuse tube assembly . The fused VT assembly(s) is mounted on a drawout drawer assembly .
  • Page 23 VacClad-W 38 kV arc-resistant Instruction Booklet IB32267ARC switchgear indoor housings Effective December 2010 9.2 Optional accessories—test cabinet A test cabinet is used for electrically opening and closing of the breaker when it is outside its housing . The cabinet includes...
  • Page 24 VacClad-W 38 kV arc-resistant Instruction Booklet IB32267ARC switchgear indoor housings Effective December 2010 38 kV Manual Ground and Test Device The manual ground and test device consists of a drawout element that can be inserted into a circuit breaker compartment in the same manner as the drawout vacuum circuit breaker element .
  • Page 25 VacClad-W 38 kV arc-resistant Instruction Booklet IB32267ARC switchgear indoor housings Effective December 2010 Section 10: primary bus joints field taping Through joints with hardware—(see Figures 39–42 .) procedure (38 kV) 1. Clean area of dirt and foreign matter . Materials for cleaning 2.
  • Page 26 VacClad-W 38 kV arc-resistant Instruction Booklet IB32267ARC switchgear indoor housings Effective December 2010 Figure 36. Typical Joint with Pad #2 and #3. 3.00 x 0.03-Inch Figure 40. Typical Joint with Pad #1. 3.00 x 0.03-Inch (76.2 x 0.8 mm) Tape Over Pad #1 and Filler (76.2 x 0.8 mm) Tape Over Filler...
  • Page 27 VacClad-W 38 kV arc-resistant Instruction Booklet IB32267ARC switchgear indoor housings Effective December 2010 Figure 43. Power Cable Connections to Switchgear Terminals Figure 44. Power Cable Connections to Switchgear Potheads eaton Corporation www.eaton.com...
  • Page 28 Instruction Booklet IB32267ARC VacClad-W 38 kV arc-resistant switchgear indoor housings Effective December 2010 Eaton Corporation Electrical Sector 1111 Superior Ave . Cleveland, OH 44114 United States 877-ETN-CARE (877-386-2273) Eaton .com © 2010 Eaton Corporation PowerChain Management is a registered All Rights Reserved trademark of Eaton Corporation .

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