GE Industrial Solutions Arc Vault Protection System User Manual

imagination at work

GE Energy

™

Arc Vault

Installation, Operation, Maintenance

Protection System

Arc Vault™ Protection System DEH-41483 Rev. 3

DEH-41483 Rev. 3 Arc Vault™ Protection System

HAZARD CATEGORIES

The following important highlighted information appears throughout this document to warn of potential hazards or to call attention to information that clarifies a procedure.

Carefully read all instructions and become familiar with the devices before trying to install, operate, service or maintain this equipment.

DANGER

Indicates a hazardous situation which, if not avoided, will result in death or serious injury.

WARNING

Indicates a hazardous situation which, if not avoided, could result in death or serious injury.

CAUTION

Indicates that if the hazard is not avoided could result in minor or moderate injury.

TRADEMARKS

Arc Vault™ Protection System

WARRANTY

This document is based on information available at the time of its publication. While efforts have been made to ensure accuracy, the information contained herein does not cover all details or variations in hardware and software, nor does it provide for every possible contingency in connection with installation, operation, and maintenance. Features may be described herein that are not present in all hardware and software systems. GE Industrial Solutions assumes no obligation of notice to holders of this document with respect to changes subsequently made. GE Industrial Solutions makes no representation or warranty, expressed, implied, or statutory, with respect to, and assumes no responsibility for the accuracy, completeness, sufficiency, or usefulness of the information contained herein. No warrantees of merchantability or fitness for purpose shall apply.

Contact your local sales office if further information is required concerning any aspect of Arc Vault™ operation or maintenance.

NOTICE

Is used to notify of practices not related to personal injury.

Arc Vault™ Protection System DEH-41483 Rev. 3 Table of Contents

DEH-41483 Rev. 3 Arc Vault™ Protection System Table of Contents

TABLE OF CONTENTS

SECTION 1. Introduction.........................................................................................................................................................................................................1

General Information ....................................................................................................................................................................................................................1

Related publications....................................................................................................................................................................................................................1

SECTION 2. Receiving, Handling and Storage..............................................................................................................................................................2

Receiving...........................................................................................................................................................................................................................................2

Equipment packages.................................................................................................................................................2

Inspecting for Damage ..............................................................................................................................................2

Filing a Claim.............................................................................................................................................................2

Handling............................................................................................................................................................................................................................................2

Lifting.........................................................................................................................................................................2

Rollers .......................................................................................................................................................................3

Forklifts......................................................................................................................................................................3

Jacks .........................................................................................................................................................................5

Storage...............................................................................................................................................................................................................................................5

Switchgear.................................................................................................................................................................5

SECTION 3. Description...........................................................................................................................................................................................................7

General...............................................................................................................................................................................................................................................7

Summary Description.................................................................................................................................................................................................................7

Compartment Areas....................................................................................................................................................................................................................8

Arc Vault compartment .............................................................................................................................................................................................................8

Feeder Cable Compartment....................................................................................................................................13

Cable lugs - mechanical type..................................................................................................................................13

Ground Bus ...................................................................................................................................................................................................................................13

SECTION 4. Equipment Installation ................................................................................................................................................................................15

Site Location............................................................................................................................................................15

Foundation Requirements.......................................................................................................................................15

Foundation Preparation...........................................................................................................................................15

Assembly and Installation of Switchgear Equipment...............................................................................................................................................17

General Requirements............................................................................................................................................17

Detailed Assembly and Installation Instructions (indoor) ........................................................................................17

Anchoring Switchgear Equipment Indoors.................................................................................................................................................................... 20

Anchoring By Anchor Bolts......................................................................................................................................20

Anchoring By Weld..................................................................................................................................................20

Control Wire Connections .......................................................................................................................................21

Power Cable Connections.......................................................................................................................................21

Relays and Control Devices....................................................................................................................................22

SECTION 5. Installing and Removing The Arc Vault Device................................................................................................................................23

Inspection and Preparation of Arc Vault..................................................................................................................23

Arc Vault Installation................................................................................................................................................23

Rejection Feature....................................................................................................................................................23

Arc Vault™ Protection System DEH-41483 Rev. 3 Table of Contents

Installing Arc Vault Device .....................................................................................................................................................................................................23

Pre-Installation precautions .................................................................................................................................... 23

Installation Procedures ........................................................................................................................................... 23

SECTION 6. Testing and inspection................................................................................................................................................................................25

Key Interlocks ..............................................................................................................................................................................................................................25

Test......................................................................................................................................................................... 25

Arc Vault Relay............................................................................................................................................................................................................................26

Final Steps to Be Taken Before Energizing Equipment.............................................................................................................................................26

SECTION 7. Operation...........................................................................................................................................................................................................27

Arc Vault device Operation....................................................................................................................................................................................................27

Arc Vault Drawout Operation...............................................................................................................................................................................................27

Arc Vault Positions..................................................................................................................................................27

Drawout Operation..................................................................................................................................................27

Front Doors ...................................................................................................................................................................................................................................27

Operation ................................................................................................................................................................ 27

Door Removal......................................................................................................................................................... 27

Door Installation...................................................................................................................................................... 28

Arc Vault Equipment Accessories.......................................................................................................................................................................................28

Arc Vault Key Interlock............................................................................................................................................ 28

Key Interlock Operation Check............................................................................................................................... 28

Padlocking the Cassette Racking Door.................................................................................................................. 29

Padlocking the Arc Vault Cassette ......................................................................................................................... 29

Padlocking the Shutter............................................................................................................................................29

Removing Shutter Units (on a de-engergized cubicle)........................................................................................... 30

Installing a Shutter Unit (in a de-energized cubicle)............................................................................................... 30

SECTION 8. Initial Test and Activation...........................................................................................................................................................................31

Making Arc Vault Ready to Test..........................................................................................................................................................................................31

Device Test Procedure.............................................................................................................................................................................................................32

Arc Vault Relay Controller Setup.........................................................................................................................................................................................33

Verify Primary Circuit Current and Voltage...................................................................................................................................................................33

Arc Vault System Activation Procedure ..........................................................................................................................................................................33

SECTION 9. Energizing the Switchgear.........................................................................................................................................................................34

Before energizing.......................................................................................................................................................................................................................34

Uninterruptable Power Supply................................................................................................................................ 34

Potential Transformer Fuse Block FB1.............................................................................................................................................................................34

Energizing Procedures.............................................................................................................................................................................................................34

SECTION 10. Post Event Procedure...................................................................................................................................................................................35

SECTION 11. Maintaining the Switchgear......................................................................................................................................................................36

Maintenance Requirements..................................................................................................................................................................................................36

Device and Instrument Compartments...........................................................................................................................................................................36

Maintenance of Arc Vault Device .......................................................................................................................................................................................36

Arc Vault Device: Test for Proper Operation .......................................................................................................... 36

Checks After Switchgear Is De-energized.............................................................................................................. 36

DEH-41483 Rev. 3 Arc Vault™ Protection System Table of Contents

Lubrication...............................................................................................................................................................36

Instruments, Instrument Transformers, and Relays................................................................................................37

Arc Vault Compartment Interiors ............................................................................................................................37

Bus Area .........................................................................................................................................................................................................................................37

Cable Compartment.................................................................................................................................................................................................................37

Overall equipment.....................................................................................................................................................................................................................38

Paint Refinishing.........................................................................................................................................................................................................................38

Arc Vault Lifting Mechanism pt # GAVLD1..................................................................................................................................................................... 38

SECTION 12. Troubleshooting .............................................................................................................................................................................................39

APPENDIX A. Torque Values..................................................................................................................................................................................................40

Arc Vault™ Protection System DEH-41483 Rev. 3 Table of Contents

DEH-41483 Rev. 3 Arc Vault™ Protection System Introduction

SECTION 1. INTRODUCTION

GENERAL INFORMATION

This manual contains procedures for receiving, handling, storage, equipment installation, operation, and maintenance and service of Low Voltage Switchgear with Arc Vault™ Protection System.

• Summary of switchgear equipment which is a list of

all the components furnished with the switchgear, including the breakers, identified by catalog number.

These are all the documents necessary to install, operate, and maintain the equipment. One complete set of drawings and instruction books is shipped with the equipment.

NOTICE

The personnel responsible for installing, operating, and servicing this equipment should be thoroughly familiar with the contents of this manual.

Before any installation work is performed, thoroughly read and understand the material in this instruction manual and the drawings furnished with the equipment. The documentation shipped with the equipment includes the Summary, Front View, Elementary Diagram, Connection Diagram and Instruction Book. This material is located in a forward compartment tagged "INSTRUCTIONS IN THIS COMPARTMENT." The documentation provides all of the information necessary for installation of the switchgear. When requesting information from the General Electric Company, include the complete data appearing on the equipment nameplate, requisition number, summary number, and elementary diagram number. The nameplate is located in the lower left, front corner of the lineup.

When requesting information concerning any specific item furnished with the switchgear, refer to that item by description, part number, its location within this manual, and any applicable drawing number. Any material external to the equipment, which may be required to meet local codes (such as mats, screens, railings, etc.), is not furnished by the General Electric Company.

If there are any questions or requirements not covered in this manual or in the accompanying drawings, please contact the local sales office of the General Electric Company.

RELATED PUBLICATIONS

In addition to instruction books, the following drawings will be supplied as required for each order of Arc Vault equipment:

• General arrangement drawings, including front view

and floor plan.

• Elementary and connection drawings (or wiring

routing tables) which indicate and identify test and connection points including terminal blocks, device studs, switch contact developments, and remote connections.

Arc Vault™ Protection System DEH-41483 Rev. 3 Receiving, Handling and Storage

SECTION 2. RECEIVING, HANDLING AND

STORAGE

RECEIVING

Equipment packages

Every package leaving the factory is plainly marked with the case number, requisition number, and customer's order number. If the equipment has been split for shipment, the section numbers of the equipment enclosed in each shipping package are identified.

NOTICE

To avoid the loss of any parts when unpacking, the contents of each container should be carefully checked against the packing list before discarding the packing material.

The contents of each shipping package are listed on the Master Packing List. In addition, this list includes the number of the shipping crate in which miscellaneous parts needed to install and operate the equipment (such as hardware, contact lubricant, touch-up paint, breaker closing devices, etc.) are located. Normally, such devices are packed in a cardboard carton and the carton secured in an empty switchgear compartment. See Figure 2-1. If such items are packed in a switchgear section instead of a separate crate, the list will indicate the appropriate section number in which they are stored.

Figure 2-1 Packaging of loose material for shipment

1-Spare compartment 2-Carton containing loose material 3-Shipping label listing contents of carton

Inspecting for Damage

All equipment leaving the factory is carefully inspected and packed by personnel experienced in the proper handling and packing of electrical equipment. Upon receipt of any equipment, immediately perform a visual inspection to ascertain if any damage has been sustained in shipping or if there are any loose parts.

Circuit breakers and Arc Vaults may be shipped separately in individual containers with the breaker in the open position. Circuit breakers and Arc Vaults should be unpacked and visually inspected for damage or loose parts as soon as possible after they have been received.

Be sure to inspect all devices mounted or packed inside compartments of each section to see if any have been dislodged or damaged.

Filing a Claim

If any damage is evident, or indication of rough handling is visible, file a claim for damage at once with the transportation company and notify the nearest General Electric Company Sales Office immediately. Information on damaged parts, part number, case number, requisition number, etc., should accompany the claim.

HANDLING

NOTICE

It is preferable to leave the shipping skids in place under the switchgear until it reaches its final location. The equipment should be installed in its final location prior to installing the circuit breakers.

Lifting

The indoor switchgear sections are best handled by lifting with a crane as shown in Figure 2-2. Removable lifting plates are provided, as standard equipment, on the top of each switchgear section. To preserve the external appearance of the equipment, it is suggested that the lifting plates be left in place except where adjacent equipments must be bolted together, i.e. shipping splits, etc.

Utilize four equal length cables and an overhead crane, each with a minimum load rating of twice the weight of the Switchgear. Estimated weights for shipping splits appear on the Front View drawings.

DEH-41483 Rev. 3 Arc Vault™ Protection System Receiving, Handling and Storage

Example: Switchgear Section Weight = 2,000 pounds. The crane and the four lift cables must have a minimum load lifting capacity of 4,000 pounds.

Figure 2-2 Recommended lifting method

CAUTION

Gently lower the switchgear section onto the level site location. If the switchgear is roughly handled or jarred, it is possible to damage or misalign internal components.

Rollers

If crane facilities are not available, the equipment may be moved into position by means of construction rollers placed under the shipping skids. The switchgear may be raised enough for the placement of rollers by means of a fork lift or jack.

There should never be less than four rollers under the equipment unless the line-up is less than five feet long. Use one roller for each 18 inches of equipment length.

Forklifts

WARNING

The angle between the cables and the top of the equipment must be at least 45 degrees. If this is not possible because of lack of headspace, spreader bars must be used. Also, lift cables with greater load capability may be necessary, depending upon the angle between the cables and the crane hook.

Connect a cable from the crane to the four lifting plates located on the top-front and rear of the indoor switchgear. See Figure 2-2.

WARNING

Do not stand under switchgear while it is being moved. Serious injury may occur if the cables or lifting device fail.

When using a forklift to raise the line-up to position rollers underneath, proceed as follows:

1. Expand forklift tines to their maximum (widest)

extension.

2. Carefully insert tines of forklift below one side of the

switchgear line-up at the approximate center of the panel as shown in Figure 2-3.

NOTICE

Do not attempt to lift or move the equipment with a forklift positioned in the front or rear of the equipment. Equipment may tip over and get damaged.

1. Raise equipment and position one roller under the

skids close to the raised end of the line-up.

2. Carefully lower the gear until it rests on the roller as

shown in Figure 2-4.

3. Repeat the lifting process at the other end and place

the appropriate number of rollers under the skids spacing them evenly across the width of the line-up.

Arc Vault™ Protection System DEH-41483 Rev. 3 Receiving, Handling and Storage

Figure 2-3 Placing forklift tines under shipping skid

Figure 2-4 Placement of rollers under shipping skid

NOTICE

If shipping skids are removed prior to final placement of equipment, rollers may only be used to move the equipment in a direction parallel to the front.

4. While carefully pushing the switchgear to its final site

position, the rollers that are freed from the rear of the switchgear are then repositioned at the forward end. This procedure should be continued until the switchgear is in its final location. See Fig. 2-8.

5. When the switchgear is in its final position, remove all

lug bolts holding the shipping skids to the switchgear line-up.

6. Insert the tines of the forklift at one end of the line-

up, raise slightly, and remove the loose rollers.

7. Lower the end of the gear carefully to the floor.

8. Raise the other end of the line-up slightly and

remove the remaining roller at that end.

DEH-41483 Rev. 3 Arc Vault™ Protection System Receiving, Handling and Storage

Figure 2-5 Method of rolling equipment into place

Jacks

Jacks may be used in place of forklifts to raise and lower switchgear. Jacks

1. Place a jack under the front and rear corners of one

end of the line-up.

CAUTION

Do not place jacks in any other location other than the front and rear corners of the switchgear. Doing so may result in serious damage to the switchgear equipment.

2. Raise the switchgear evenly and just enough to

position a roller beneath the equipment. Gently lower the switchgear onto the roller. Repeat the procedure at the opposite end of the switchgear, raising the gear far enough to place the appropriate number of rollers under the skids, spacing then evenly across the width of the line up. Gently lower the gear onto the rollers.

4. When the switchgear is in its final position, remove all

lag bolts holding the shipping skids to the switchgear line-up.

5. Place one jack at each corner, front and rear, of the

switchgear. Carefully raise the line-up evenly and remove the rollers and the shipping skids. Evenly lower the line-up to the floor and remove the jacks.

STORAGE

Switchgear

If it is necessary to store the switchgear equipment for any length of time, the following precautions should be taken to prevent corrosion or deterioration.

1. Remove protective covering. Check thoroughly for

damage.

2. Store in a clean, dry, rodent-free location with

moderate temperature and provide protective coverings to prevent dirt, water, or other foreign substances from entering the switchgear.

3. While carefully pushing the switchgear to its final site

position, the rollers that are freed from the rear of the switchgear are then repositioned at the forward end. This procedure should be continued until the switchgear is in its final location.

Arc Vault™ Protection System DEH-41483 Rev. 3 Receiving, Handling and Storage

CAUTION

Remove all cartons, containers and any other miscellaneous packaging and packing material from inside the switchgear sections before energizing any internal heaters. To prevent fire, remove any plastic or polyethylene shrouding from the switchgear sections before energizing any internal heaters.

3. If dampness or condensation may be encountered in

the storage location, heaters must be placed inside the switchgear sections to prevent moisture damage. Approximately 250 watts of heat in each section is required. On outdoor switchgear equipment, this may be accomplished by making a temporary power supply connection to the heaters already installed in the equipment.

CAUTION

If the space heaters are to be temporarily energized from external source, it is important to remove the fuses on the secondary side of the control power transformer. This precaution is to prevent a feed back of higher voltage to other portions of the equipment through the CPT primary.

DEH-41483 Rev. 3 Arc Vault™ Protection System Description

SECTION 3. DESCRIPTION

GENERAL

This section contains a description of the General Electric Arc Vault™ Low Voltage gear. It also describes the functions of the electrical and mechanical systems of Arc Vault.

Figure 3-1 is a side view of a typical Arc Vault section showing compartmentation.

Figure 3-1 Side view of Arc Vault Stack

Refer to Figure 4-3 on page 17 for cable entry space dimensions and location.

Ceiling height above exhaust door must be min. 12 feet. Exception to this requirement is above cable entry space. Sprinkler heads cannot be located within a five foot radius of the perimeter of the Arc Vault stack.

SUMMARY DESCRIPTION

General Electric Arc Vault Protection System is a free standing assembly of metal-enclosed sections containing cable termination provisions, auxiliary power circuit protective devices, controls, and instrumentation.

INTERSECTIONAL CONTROL WIRING TROUGH

ELECTRONICS COMPARTMENT

ARC VAULT DEVICE COMPARTMENT

COMPARTMENT DOORS

Exhaust Door requires clearance from conduit, Plumbing and other mechanical devices.

Open Exhaust Door Height is 94.1 inch

CABLE CONNECT BUS

BOTTOM ELECTRONICS COMPARTMENT INCLUDING UPS

Arc Vault™ Protection System DEH-41483 Rev. 3 Description

COMPARTMENT AREAS

The front enclosure of each section is divided into three individual compartments. These compartments house controls component, the Arc Vault™ device and the optional Uninterruptable Power Supply compartment.

ARC VAULT COMPARTMENT

A standard Arc Vault compartment, Figure 3-2, is located below the controls compartment.

Routine wiring inspections and fuse checks or fuse replacements can be performed with the Arc Vault compartment door in the closed position so that operators are protected from the energized primary circuits.

Figure 3-2 Arc Vault compartment

Figure 3-3 Arc Vault controls compartment

1. Compartment door

2. Arc Vault device

An Arc Vault controls compartment, Figure 3-3, is available as a standard feature. Internal hinged panels are used to mount instruments and other devices associated with the Arc Vault monitoring and control.

Relays and similar devices may be installed in the compartment behind the swing-out device panel.

Potential transformer fuse block FB1

The Arc Vault compartment is a closed-door drawout compartment. Figure 3-4 and Figure 3-5 shows standard construction. The Arc Vault compartment doors remain closed and latched while the Arc Vault is racked out from the CONNECTED position, through TEST, to the DISCONNECTED position.

Arc Vault compartment doors do not have any ventilation slots, thus protecting operators from hot ionized gases which may be vented by the Arc Vault during circuit interruption. Additionally, the Arc Vault compartment is enclosed by grounded steel barriers on the top, sides, bottom, and front. In the back, a flame-retardant, track resistant, glass-filled polyester base minimizes the possibility of fault communication between compartments to the bus.

+ 35 hidden pages

GE Industrial Solutions Arc Vault Protection System User Manual

Specifications and Main Features

Frequently Asked Questions

User Manual