Hubbell LT, I Installation Operation & Maintenance

Installation, Operation and

Maintenance Manual

VERSA-TECH® I & VERSA-TECH® LT

Single-Phase Recloser

for Distribution Systems

DANGER

Electric Shock Hazard. All parts of recloser are energized.

Contact with in service recloser will cause death or severe injury.

Before contacting or servicing the equipment, or working on the electrical system, isolate and ground the recloser from the electrical system. Verify recloser is de-energized by testing with properly rated hot sticks and/or rubber gloves and volt meter.

8100 Churchill Avenue Leeds, Alabama 35094 (205) 699-0840 www.hubbellpowersystems.com

PSP8620311 Rev. E

IMPORTANT!

Keep this manual readily

available for future reference.

Warnings

DANGER

Electrical equipment contains hazardous voltages. Contact with these hazards will cause death, severe personal injury or damage equipment.

Only qualiﬁed personnel shall install, operate and maintain this equipment. Always properly ground equipment and lock out electric power (de-energize) before maintenance. Using non-speciﬁed/unauthorized parts or components to repair equipment, or tampering with safety devices/systems will result in dangerous conditions which can cause death, severe personal injury or damage to equipment. Take note of and follow all safety instructions contained in this installation, operation and maintenance manual.

IMPORTANT

These installation, operation and maintenance instructions do not claim to cover all details or variations in equipment. Nor do they provide for all possible conditions encountered while installing, operating or maintaining this equipment. If further information is desired or needed to address any particular installation, operation or maintenance problem not covered in this document, contact your authorized factory representative.

The information in this document does not relieve the user from exercising good judgment in selecting equipment for suitability of application. Nor does it relieve the user from using sound practices in installation, operation and maintenance of the equipment purchased.

Note: Because Hubbell has a policy of continuous product improvement, we reserve the right to change design and specications without notice. Should a conict arise between the general information in this document and the contents of drawings or supplementary material, or both, the latter shall take precedence.

QUALIFIED PERSON

For the purpose of this manual, a qualied person is:

(a) familiar with the installation, construction or operation of the subject equipment and the hazards

involved with its installation, operation and maintenance.

(b) trained to de-energize, clear, ground, and tag circuits and equipment in accordance with established

safety practices.

glasses or face shields, ash clothing, etc., in accordance with established utility safety practices.

(d) trained to render rst aid.

SUMMARY

The information in this document does not claim to cover all details or variations in equipment, nor to provide

for every possible contingency encountered with installation, operation, or maintenance. Should further information be needed or problems arise that are not covered suciently, contact your factory representative.

The contents of this document are not part of, nor do they modify, any prior or existing agreement, commit-

ment or relationship. Hubbell Power Systems, Inc. terms and conditions of sale constitute the entire obligation of Hubbell Power Systems, Inc. The warranty in the terms and conditions of sale is the sole warranty of Hubbell Power Systems, Inc. Any statements in this document do not create new warranties or modify any

existing warranty.

PSP8620311

Rev. E

Contents

Section Subject Page No.

1 — Overview

Safety Information

Ratings and Specications

Duty Cycle

Installation Alternatives

Catalog Number Matrix

Dimensions - Pole/Structure Mount

Dimensions - Crossarm Mount

2 — Installation Requirements

User Supplied Requirements

Hardware Torque Specications

3 — Receiving and Handling

Inspection

Unpacking

Components

Storage

4 — Installation

Installing NR Hookstick Adapter

Installation Options

Installation Preparation

Pole/Structure Surface Mounting

Crossarm Mounting

Connections

Place Recloser in Service

5 — Recloser Operation

Overview

Automatic Operation

Operations Counter

Non-Reclosing Lever/Hot Line Tag

Manual Operating Handle

Lockout Beacon

6 — Control Programming

Overview

Customer Supplied Requirements

Software Installation

Connecting Recloser to PC

To Establish Communications

Connecting Local Radio

Section Subject Page No.

Connecting to WiFi

Remote Radio Power

Radio Operation

Windows XP Local Radio Drivers Installation

Windows 7 Local Radio Drivers Installation

Windows 8 Local Radio Drivers Installation Guide

Versa-Tech Programmer Settings Tab

Connecting to a Recloser

Programming Settings

Minimum Trip Value

Non-Reclose /Hot Line Tag

Operations to Lockout

Manual Closing Delay Time

Sequence Coordination

Time-Current Curve Selection

Time-Current Curve Modiers

Minimum Response Time

Reclose Time

Reset Time

Cold Load Time

Cold Load Pickup

Record Manual Close

Time Stamp

Serial Number

Buttons Functions and General Form Controls

Real Time Monitoring

Events and Data Log

Time and Security

Scratchpad

Firmware Upgrade

7 — Testing

High-Potential Withstand Test

Minimum-Trip Current Test

Sequence of Operation Test

8 — Maintenance

9 — Trouble Shooting Return Kit Packaging Instructions

44 46 47

PSP8620311 Rev. E

Contents

Tables & Figures....................................................Page Number

Table 1-1 Duty Cycle ................................................................................. 6

Table 1-2 Recloser Catalog Number Matrix............................................... 6

Table 2-1 Hardware Torque Speciﬁcations ............................................... 9

Table 9-1 Trouble Shooting Guide............................................................ 46

Figure 1-1 Pole/Structure Face Mounting .................................................6

Figure 1-2 Crossarm Mounting .................................................................6

Figure 3-1 Components............................................................................10

Figure 4-1 Packaged NR Hookstick Adapter Kit........................................11

Figure 4-2 NR Hookstick Adapter Kit Components................................... 11

Figure 4-3 NR Hookstick Adapter Positioning for Assembling...................11

Figure 4-4 Clevis Pin Insertion for NR Hookstick Adapter......................... 11

Figure 4-5 Cotter Pin Insertion for NR Hookstick Adapter......................... 11

Figure 4-6 Pole/Structure Face Mounting .................................................12

Figure 4-7 Crossarm Mounting ................................................................ 12

Figure 4-8 Bypass Arrangement .............................................................. 12

Figure 4-9 Program/Installation Tag ........................................................ 13

Figure 4-10 Pole/Structure Mount Assembly Detail ................................... 14

Figure 4-11 Pole/Structure Mount Installation ........................................... 14

Figure 4-12 Recloser in Sling ..................................................................... 14

Figure 4-13 Crossarm Assembly Detail ...................................................... 15

Figure 4-14 Crossarm Mount Installation ................................................... 15

Figure 5-1 Feature Position .......................................................................18

Figure 6-1 Connecting Local Radio ...........................................................19

Figure 6-2 Settings Tab of Programmer Software .................................... 27

Figure 6-3 Real Time Monitoring Tab of Programmer Software .............. 36

Figure 6-4 Events and Data Log Tab of Programmer Software ................ 37

Figure 6-5 Sequence Coordination enabled on four operations

and the SC Lockout option Checked ...................................... 38

Figure 6-6 Sequence Coordination enabled on four operations

and the SC Unchecked ........................................................... 38

Figure 6-7 Time and Security Tab ............................................................ 39

Figure 6-8 Scratchpad Tab ....................................................................... 40

Figure 7-1 Recloser attached to high potential test set ........................... 42

Figure 7-2 Recloser attached to high current test set ............................. 43

Figure 8-1 Battery bayonet in the recloser .............................................. 44

Figure 8-2 Battery bayonet partially removed from recloser ................... 44

PSP8620311

Rev. E

1 — Overview

Safety Information

DANGER

All parts of recloser are energized.

Contact with components will cause severe personal injury, death, or property damage.

Only qualiﬁed personnel should work on or around this equipment after becoming thoroughly familiar with this document and other publications regarding this equipment.

WARNING

DANGER

Handle position does not indicate deenergized recloser enclosure controls or circuit.

Contact with these components will cause severe personal injury, death, or property damage.

CAUTION

This equipment is not intended to protect human life.

Can cause death, severe personal injury, and/or equipment damage

Follow all locally approved procedures and safety practices when installing or operating this equipment.

Introduction

This manual is to guide you through the programming, installation, opera-

tion and maintenance of the VERSA-

TECH® single-phase recloser. This manual does not claim to cover all situations that may arise during installation. If additional information is needed, contact your factory representative. Nor does this manual supersede your company’s established guidelines and practices for similar equipment. Take note of and heed all danger, warning and cautions contained in this document.

Qualied Person

Only qualied trained and competent personnel that understand proper safety procedures must select, install and service this equipment.

Read and understand these instructions before installing, operating or maintaining this equipment.

This guide is not a substitute for adequate training and experience in safety procedures for this type of equipment.

Signal Words

The signal words “DANGER,” “WARNING” and “CAUTION” (along with their assigned symbol) throughout this manual indicate the degree of hazard the user may encounter. These symbols and words are deﬁned as:

DANGER indicates an imminently hazardous situation which, if not avoided, will result in death or serious injury.

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

CAUTION indicates a potentially hazardous situation which, if not avoided, may result in minor or moderate injury.

Do not place the recloser in service until all settings have been programmed and veriﬁed.

Failure to comply can result in recloser misoperation, equipment damage, and personal injury.

Refer to sections 6 and 7 of this manual for control programming and operation.

DANGER

WARNING

CAUTION

CAUTION used without the safety alert symbol indicates a potentially hazardous situation which, if not avoided, may result in property damage.

Product

The products covered by this manual

are the VERSA-TECH® single-phase

reclosers for medium voltage electrical distribution circuits.

These products are designed for distribution circuits only at their rated

capacities. They cannot be eld modied for capacities other than what

was shipped with the units.

Function

This product is a single-phase recloser designed to provide a means for interrupting, sectionalizing and isolating faults on electrical distribution systems.

PSP8620311 Rev. E

1 — Overview

Ratings and Specications

VTI VTLT

Rated Maximum Voltage .....................................29.3kV

Rated Continuous Current...................................400A

Fault Make Capacity...............................................8kA

Fault Break Capacity...............................................8kA

Mechanical Operations......................................30,000

3 Second Withstand Current..................................8kA

Transformer Magnetizing Current.........................14A

Cable Charging Current.........................................25A

Line Charging Current..............................................5A

Lightning Impulse Withstand.............................125kV

60Hz, 1-Minute Withstand Voltage.....................60kV

Maximum Terminal Pad Load kg (pounds).......14 (30)

Operating Temperature.......................... -40°C to 60°C

Weight kg (pounds)...........................................21 (46)

Installation Alternatives

Figure 1-1 Pole/Structure Face Mounting

Duty Cycle

29.3kV 100A

4kA 4kA

10,000

4kA 14A 25A

125kV

60kV

Percent of 8kA

Maximum Interrupting

Rating (%)

15-20 10000

25 6500

50 1800

75 700

100 400

Table 1-1 Duty Cycle

Number

Operations

14 (30)

-40°C to 60°C 21 (46)

Catalog Numbering System

To build your Versa-Tech Recloser, add features from the matrix to this base number

Catalog No. PSC86

Voltage Rating 27kV 2

Versa-Tech I with FW 3.xx 1

Versa-Tech LT 4

Versa-Tech I with FW 4.xx 5

Minimum Fault Trip 30A 1

Pole/Structure Mount 1

Crossarm Mount 2

Pole with Ground Connector 3

No Connectors 1

PG (Parallel Groove) Clamps (2 total) 2

Captive Hardware 3

Single Tap Lug 4

Double Tap Lug 5

No Radio 1

Standard Performance Remote Digi Radio 2

High Performance SiFLEX Remote Radio 3

WiFi Module 4

XBee Radio 5

Pole Plaques (Additional)

Reserved 1

1 2 3 4 5 6 7 8

2 X 1 X X X X 1

Position

Figure 1-2 Crossarm Mounting

The number in Position 7 is the number of pole plaques in addition to the one included with each recloser (Ex: 3 is 3 more for a total of 4)

NOTE: For more information on the Versa-Tech II Single-Phase Recloser, please refer to Catalog 10EE on the Hubbell Power Systems website.

PSP8620311

Rev. E

1 — Overview

Dimensions - Pole/Structure mounting

MOUNTING HOLES FOR 5/8" (15mm) BOLTS 11" (27.9cm) CENTER TO CENTER NOMINAL.

VACUUM INTERRUPTER

17.1 12.4

29.5

4.2

Back View

11.0

2.0

2-HOLE NEMA PAD (STANDARD) TYPICAL

OPERATING LEVER

NON-RECLOSE LEVER

15.0

LOCKOUT INDICATOR BEACON AND COUNTER

8.7

15.8

22.0

Front View

2-HOLE NEMA PAD (STANDARD) TYPICAL

Side View

OPERATING LEVER

LEAKAGE DISTANCE - 39.4"

PSP8620311 Rev. E

BATTERY PACK (HOT STICK REPLACEABLE)

SERIAL PROGRAMMING PORT

LOCKOUT INDICATOR BEACON AND COUNTER

1 — Overview

31.1

10.6

Dimensions - Crossarm mounting

ADJUSTABLE 3" - 9-1/2"

LEAKAGE DISTANCE - 39.4"

OPERATING LEVER

28.0

NON-RECLOSE LEVER

8.7

VACUUM INTERRUPTER

LOCKOUT INDICATOR BEACON AND COUNTER

ADJUSTABLE 5-1/8" - 10-1/4" TYPICAL

12.7

2-HOLE NEMA PAD (STANDARD) TYPICAL

14.0

LOCKOUT INDICATOR BEACON AND COUNTER

4.0

24.9

Side ViewFront View

PSP8620311

Rev. E

2 — Installation Requirements

User Supplied Requirements

The following is required for installation. Be sure to have these items on hand before beginning installation.

Safety Equipment (PPE)

• Hard hat

• Steel-toe work boots

• Appropriate eye protection per your company’s policy

• Other safety equipment as required by your company’s policies

Hardware

• 5⁄8 inch (16 mm) galvanized thru-bolts (or equivalent) long enough to pass through the center of the utility pole, plus 3 inches (75 mm)

• Curved galvanized washers for the 5⁄8 inch (16 mm) thru-bolts

• Galvanized nuts for 5⁄8 inch (16 mm) thru-bolts

• Flat galvanized washers for 1⁄2 inch (12 mm) and 5⁄8 inch (16 mm)) lag screws

Electrical

• Terminal pad connectors (if not ordered with switch)

• Connector sealing paste (CHANCE ZLN or equivalent)

• Surge arresters and wire (if needed)

Options

• BP3 By-Pass Switch (for appropriate Cat. No., see Catalog Section 14B)

• Jumper Wire, 100/400 Amp minimum capacity (VTLT/VTI)

• M3 Disconnect Switch (for appropriate Cat. No., see Catalog Section 14B)

Hardware Torque

Specications

It is the installing personnel’s responsibility to be sure all threaded fasteners are installed with the correct torque. All user supplied hardware is to be torqued according to company standards. Recloser and connector hardware torque speciﬁcations are listed in Table 2-1.

User Supplied Hardware

Item ft-lb N•m Notes

5⁄8 inch (16 mm) thru-bolts N/A N/A Company standards apply

5⁄8 inch (16 mm) lag screws N/A N/A Company standards apply

Terminal connectors N/A N/A Company standards apply

Hubbell Supplied Hardware

Item ft-lb N•m Notes

3/8 inch Crossarm Mount bolts N/A N/A Company standards apply

3/8 inch Insulator Mount bolts 15 20

1/2 inch Terminal bolts 60 81

Table 2-1 Hardware Torque Specications

Hubbell Power Systems, Inc. Supplied Requirements

All necessary components and hardware speciﬁc to the installation of the VERSATECH® recloser ordered are included.

Carefully check the components and hardware items against those listed in Section 3.

Contact your factory representative if any parts are missing.

PSP8620311 Rev. E

3 — Receiving & Handling

Inspection

1. Inspect the packaging for obvious shipping damage.

2. Open and thoroughly inspect the product for hidden damage.

3. Note any damage on the “Bill of Lading” prior to accepting the delivery.

4. Check the material nameplate against the shipping list to ensure the correct material has been received. In case of shortage or incorrect material, immediately notify your factory representative or customer service.

NOTE: Documentation of visible shipping damage can determine the outcome of any damage claim. Notifying the carrier of concealed damage within 15 days is essential to resolving or minimizing unsettled claims. Immediately ﬁle your claim and notify your factory representative.

Unpacking

1. Locate the Hubbell USB Drive that is enclosed with this manual. The USB drive should be in the custody of the personnel who will be responsible for the programming of the recloser.

1. Carefully remove all items from the packaging. Exercise caution and do not drop the unit or strike the skirted end on anything as this may damage the vacuum interrupter or mechanism.

1. Refer to Figure 3-1 to familiarize yourself with all components.

NOTE: When batteries are removed for more than seven days, the time stamp chip will stop keeping time. If time stamp feature is required, the time stamp can be reset before placing the recloser in service. (See Section 7.)

Storage

If the recloser is not going to be put into service immediately, re-pack all components in the factory package to minimize storage damage and to ensure good operating conditions in the future. Hubbell Power Systems recommends that the recloser be stored indoors or under cover, off the ground, not subject to direct sun, rain or snow.

If the storage area temperature exceeds 100°F, remove the batteries and store in a cool, dry area.

Radio (optional)

Battery Bayonet

Figure 3-1 Components

Mounting Brackets

Insulator

Mounting Fasteners and PG Clamps

Instructions, Flash Drive and NR Handle

Adapter Kit.

PSP8620311

Rev. E

4 — Installation

Installing the Optional NonReclose Hookstick Adapter

The Non-Reclose (NR) Hookstick Adapter Kit is an adapter that can be attached to the NR handle on the Versa-Tech Recloser to allow for easier operation with a hookstick. The addition of the adapter is not mandatory. The same gentle pull action, as used with the NR handle, is utilized for operation. Figure 4-1 shows the NR Hookstick Adapter Kit as packaged. Figure 4-2 shows the components.

Step 1: Pull the Non Reclose (NR) handle to the down position.

Step 2: Take the NR Hookstick Adapter and place it so that the NR handle is positioned as shown in Figure 4-3.

Figure 4-1

Clevis Pins

Cotter Pins

Non Reclose

Hookstick

Adapter

Figure 4-2

Step 3: Insert the clevis pins through the holes of the NR Hookstick Adapter as shown in Figure 4-4.

Figure 4-3 Figure 4-4

Figure 4-5

Step 4: Place the cotter pins though the holes on the clevis pins. Fold the legs of each cotter pin as shown in Figure 4-5.

NOTE: The Non Reclose Hookstick Adapter operation has not been tested under icing conditions.

PSP8620311 Rev. E

4 — Installation

Installation Options

VERSA-TECH® single-phase reclosers are designed for outdoor pole or structure mounting and application on overhead electrical distribution systems. The energized recloser is insulated from the pole/structure by a polymer insulator.

The VERSA-TECH® Single Phase Electronic Recloser is available in two basic mounting conﬁgurations:

1. Pole/Structure mounting (see Fig. 4-1)

2. Crossarm mounting (see Fig. 4-2).

Refer to the catalog number of the unit. The fourth (4th) character position indicates the mounting arrangement, e.g., the "1" in the seventh position of (PSC86)2X11XXX indicates a Pole/ Structure mounting. A “2” in this position indicates Crossarm mounting, e.g., (PSC86)2X12XXX.

Figure 4-8 Bypass Arrangement

Figure 4-6 Pole/Structure Mounting

Hubbell Power Systems recommends the use of a by-pass switch in parallel with the recloser. This arrangement allows the unit to be easily taken out of the circuit for service, should the need arise. It also allows all connections to be made without picking up load current with the jumper connections (see Fig. 4-3).

LIGHTNING ARRESTERS NOTE:

Hubbell Power Systems recommends placing appropriately rated lightning arresters as close as possible on both the source and load sides of the recloser. (Refer to Ohio Brass catalog.)

Figure 4-7 Crossarm Mounting

PSP8620311

Rev. E

4 — Installation

WARNING

Follow all appropriate OSHA and company work rules in the installation of this equipment. All clearances, cover-up and personal protective equipment must be used. Failure to follow these instructions may result in damage to equipment, personal injury or death.

CAUTION

The unit must be mounted horizontally as illustrated in this manual. Failure to mount in this attitude may result in improper operation of the interrupter.

WARNING

Do not store or lay the recloser in mud, snow or water.

This could contaminate the insulation over the interrupter leading to electrical ﬂashover at the system voltage.

A clean, dry storage environment is recommended.

CAUTION

Do not place the recloser in service until all settings have been programmed and veriﬁed.

Failure to comply can result in recloser misoperation, equipment damage, and personal injury.

Refer to sections 6 and 7 of this manual for control programming and operation.

Installation Preparation

1. Program the unit with the desired parameters as outlined in Section 6 of this manual. Record the settings on the supplied tag and attach the tag to the operating handle for reference during installation (Fig. 4-4).

2. Prior to installation, verify vacuum interrupter integrity by applying 50/60 Hz 40kV AC across the open contacts for 60 seconds. (See Section 7.)

Complete this tag when unit is programmed and tie to the operating handle of the unit.

Hubbell Versa-Tech® Single Phase Recloser

This unit has been programmed to the following settings by: _______________ Date: _____________

Operations to Lockout: 1 2 3 4

Minimum Trip (Amps): ___________ Reset Time (sec): ____________ Min. Response Time (mSec): __________ Cold Load Time: ____________ Sequence Coordination Enabled ❑ Min. Response Enabled for Operation 1 2 3 4

Operation #1: TCC1 TCC2 TCC1 Curve: _____________ Modier: _____________ Operation #2: Reclose Time 1 (sec): ____ Curve: TCC1 TCC2 TCC2 Curve: _____________ Modier: _____________ Operation #3: Reclose Time 2 (sec): ____ Curve: TCC1 TCC2

Operation #4: Reclose Time 3 (sec): ____ Curve: TCC1 TCC2

Location for Installation: _______________________________________________________________

Installed by: ______________________________________________ Date: _____________________

Figure 4-9 – Program/Installation Tag

PSP8620311 Rev. E

4 — Installation

Pole/Structure Surface Mounting

1. Refer to Figure 4-5 for assembly detail and Table 2-1 for torque speciﬁcations.

• Assemble the insulator (1) to the

rectangular steel adapter plate (2) using two 3/8" X 1" bolts and split lock washers (3) as shown.

• Assemble the mounting bracket (4) to

the opposite end of the insulator (1) using two 3/8" X 1" bolts, ﬂat washers and split lock washers (5) as shown.

• Attach the insulator/bracket/adapter

plate to the four threaded bosses on the ﬂat side of the body of the recloser as shown. Use four ss 3/8" X 1-1/4" bolts, ﬂat washers and split lock washers (6).

NOTE: Do not attach to the 4 threaded

holes on the top of the body. These attachment holes are used only on the crossarm mounting arrangement.

2. Determine the mounting location on the pole. The pole mount uses 2 bolts, 5/8" diameter on 12" centers.

3. Drill the appropriate holes through the pole.

Figure 4-10 Pole/Structure Mount Assembly Detail

4. Install the bolt in the top hole.

NOTE: The head of the bolt must be on the side of the pole where the recloser will be mounted. Install the nut and washers on the back side. Leave approximately 2" of bolt exposed under the head for the keyhole slot in the mounting bracket.

5. Using a nylon sling, sling the unit as shown in Figure 4-7.

CAUTION: Do not use a metal sling or chain as this may damage the unit.

6. Using suitable means, lift the unit into position.

CAUTION: Do not allow recloser to impact or collide with pole or other objects as it is lifted and installed.

7. Ensure the top bolt engages the small portion of the “keyhole” slot.

Figure 4-11 Pole/Structure Mount Installation

Figure 4-12 Recloser in Sling

8. Install the bottom bolt/washers and nut.

9. Tighten the hardware per Table 2-1.

PSP8620311

Rev. E

4 — Installation

Crossarm Mounting

This conﬁguration is intended for application to a double crossarm structure.

This is the preferred arrangement if three units are to be mounted.

1. Remove the four 3/8" X 5/8" bolts from top mounting ﬂange (8) and use to ﬁll the four holes on the cover (9).

2. Refer to Figure 4-8 for assembly detail and Table 2-1 for torque speciﬁcations.

• Orient the insulator (1) so the skirts

will shed water towards the rectangular steel adapter plate (2) and assemble using two 3/8" X 1" bolts and split lock washers (3) as shown.

• Assemble the mounting bracket (4)

to the opposite end of the insulator (1) using two 3/8" X 1" bolts, split lock washers and ﬂat washers (5) as shown.

• Attach the insulator/bracket/adapter

plate to the four threaded bosses on the top of the body of the recloser as shown. Use four ss 3/8" X 1-1/4" bolts, ﬂat washers and lock washers (6).

3. Using a nylon sling, sling the unit as shown in Figure 4-7.

Figure 4-13 Crossarm Assembly Detail

CAUTION: Do not use a metal sling or chain as this may damage the unit.

4. Using suitable means, lift the unit into position.

5. Install the back plate (7), and four 3/8" X 7-1/2" carriage bolts/lock washers/ and square nuts. Adjust the bolt spacing as necessary to ﬁt the crossarm arrangement.

6. Tighten the hardware per Table 2-1.

NOTE: Make sure the terminal L brackets

(2-hole NEMA pads) are not bent in any

angle. Terminal L bracket nuts, sixteen

screws around the recloser and six screws

around the vacuum interrupter are not to be

removed or re torqued by any means. The

integrity of the contacts is compromised if the

above factory standard torqued hardware is

tampered.

Figure 4-14 Crossarm Mount Installation

PSP8620311 Rev. E

+ 35 hidden pages

Hubbell LT, I Installation Operation & Maintenance

Specifications and Main Features

Frequently Asked Questions

User Manual