Utility Solutions LOAD-RANGER FLEX-LT Load Break Tool Manuale utente

LOAD-RANGER®FLEX-LT™ LOAD BREAK TOOL

OPERATION MANUAL - 2ND GENERATION

C-02311

(7-13-23)

(828) 323-8914 (828) 323-8410 sales@utilitysolutionsinc.com utilitysolutionsinc.com

101 33RD STREET DRIVE SE • HICKORY, NC 28602

(828) 323-8914 (828) 323-8410 sales@utilitysolutionsinc.com utilitysolutionsinc.com

101 33RD STREET DRIVE SE • HICKORY, NC 28602

LOAD-RANGER® FLEX-LT™ Operation Manual 1

TABLE OF CONTENTS

SECTION PAGE

INTRODUCTION

Safety Alert Messages

Following Safety Instructions

Read & Retain Instruction Sheet

Qualiﬁed Persons

Applications

Capacitor Ratings

Single-Pole Switching

Safety Procedures

Counter

Inspection

Storage

OPERATION

Tool Operation

LOAD-RANGER® FLEX-LT™ Operation Manual 2

Several types of safety alert messages may appear throughout this instruction

sheet and on the label of the Load-Ranger® FLEX-LT™ tool. Review the following

messages carefully and familiarize yourself with the importance of the content.

If you do not fully understand any portion of the following instruction manual,

reach out to Utility Solutions, Inc. for assistance. To reach out by telephone, call

(828) 323-8914, or send an email to sales@utilitysolutionsinc.com.

INTRODUCTION

SAFETY ALERT

MESSAGES

FOLLOWING SAFETY

INSTRUCTIONS

READ & RETAIN

INSTRUCTION SHEET

QUALIFIED PERSONS

“DANGER” identiﬁes the most serious and immediate hazards that will likely

result in serious personal injury or death if instructions and recommended

precautions are not followed.

“WARNING” identiﬁes hazards or unsafe practices that can result in serious

personal injury or death if instructions and recommended precautions are not

followed.

Only trained and qualiﬁed personnel should operate, inspect and maintain this

device. These instructions are not intended to be a substitute for adequate

training and experience in safety procedures for the operation of this type of

equipment.

“CAUTION” identiﬁes hazards or unsafe practices that can result in minor

personal injury if instructions and recommended precautions are not followed.

“NOTICE” identiﬁes procedures or practices that can result in product or

property damage if instructions are not followed.

Read this instruction sheet thoroughly and carefully before operating the

Load-Ranger® FLEX-LT™ tool. This instruction sheet is a permanent part of

your Load-Ranger® FLEX-LT™ tool. Designate a storage location for this sheet

where it may be easily accessed.

LOAD-RANGER® FLEX-LT™ Operation Manual 3

INTRODUCTION

The Load-Ranger® FLEX-LT™ Portable Load Break Tool is designed to be used on

“hook-equipped” disconnects, cutouts, switches and power fuses up to 34.5 kV

and 150 Basic Insulation Level (BIL) or less.

The Load-Ranger® FLEX-LT™ load break tool can safely:

•Break associated cable charging currents, line charging currents, and

transformer magnetizing currents provided the transformers carry greater than

5% load.

• Switch magnetizing current of undergrounded primary transformers provided

the transformers carry greater than 5% load.

• Operate switches and fuses in metal enclosures and switchgear such as

padmounted gear up to 25kV. It is recommended that the tool is ﬁtted with an

optional insulated extension hood (-E version) or a padmount option is available

with an extended hood and low proﬁle mounting arm (-P version).

• Switch single capacitor banks found on distribution systems.

APPLICATIONS

CAPACITOR RATINGS

Single bank capacitors only. Do not use LOAD-RANGER® FLEX-LT™ Portable Load Break tools

for switching back-to-back / parallel capacitor banks.

The Load-Ranger® FLEX-LT™ load break tool is used to switch equipment

that operates at high voltages. Contact with high voltage can cause grievous

personal injury or death if necessary precautions and safety practices are not

followed. Only use this device in accordance with safe operating practices

around energized lines and equipment.

USLR-FLEX-1 1800 Up to 14.4 Grounded Wye Connected Grounded System

USLR-FLEX-1 2400 Up to 16 Grounded Wye Connected Grounded System

USLR-FLEX-1 3000 Up to 23.9 Grounded Wye Connected Grounded System

USLR-FLEX-1 1800 Up to 26 Grounded Wye Connected Grounded System

USLR-FLEX-1 1800 Up to 14.4 Ungrounded Wye Connected Grounded System

USLR-FLEX-1 2400 Up to 16 Ungrounded Wye Connected Grounded System

USLR-FLEX-1 1800 Up to 14.4 Ungrounded Wye Connected Ungrounded System

USLR-FLEX-1 2400 Up to 16 Ungrounded Wye Connected Ungrounded System

USLR-FLEX-2 3000 Up to 23.9 Grounded Wye Connected Grounded System

USLR-FLEX-2 3600 Up to 27.6 Grounded Wye Connected Grounded System

USLR-FLEX-2 4800 Up to 34.5 Grounded Wye Connected Grounded System

USLR-FLEX-2 3000 Up to 23.9 Ungrounded Wye Connected Grounded System

USLR-FLEX-2 3600 Up to 27.6 Ungrounded Wye Connected Grounded System

USLR-FLEX-2 3000 Up to 23.9 Ungrounded Wye Connected Ungrounded System

USLR-FLEX-2 3600 Up to 27.6 Ungrounded Wye Connected Ungrounded System

Catalog

Number

Capacitor Bank

Rating kVAR

Three-Phase

Nominal System

Voltage

Three-Phase (kV)

Capacitor Bank

Connection System

LOAD-RANGER® FLEX-LT™ Operation Manual 4

INTRODUCTION

The nature of any single pole switching on distribution circuits has the potential

for excessive voltages due to a variety of factors, such as kVA, loading and

transformer connections. For applications on ungrounded primaries or single

phase units connected in a delta conﬁguration above 21.96kV, any single pole

switching should only be performed if each phase is carrying at least 5% load;

or if the primary neutral is grounded during switching operations. The primary

neutral shall also be grounded prior to any single pole switching of lightly loaded

banks rated 150kVA or less (3PH) or 50kVA or less (1PH) at voltages above

21.96kV.

Acquaint yourself with all operation features prior to use. It is also recommended

that the user practice using the tool on unenergized equipment to gain familiarity

with proper operations.

Utility Solutions, Inc. oﬀers the Load-Ranger® with or without a mechanical

counter. The counter is designed to track pulls for the purposes of determining

a tool’s end of life. After 1500-2000 operations, spring fatigue and component

degradation begin to occur. Some utilities use the counter for purposes of

inspection or tool maintenance. While this can be a useful reference point, it

should not be the only basis for repair. There are many factors which can impact

the condition of a tool and a holistic approach should be taken with regard to

maintenance. Utility Solutions, Inc. recommends relying on time as the primary

basis of inspection. See the Inspection section in this manual for further details.

All Load-Ranger® FLEX-LT™ tools ship with an Inspection Reminder sticker.

Load-Ranger® tools should be disassembled and inspected every 2 years in

accordance with the date stamped on the sticker. The sticker should be replaced

after inspection. To reorder, call Utility Solutions, Inc. at 828-323-8914 and

reference part number B-02373.

For disassembly and inspection instructions, please reference the Maintenance

Manual located on our website, at www.utilitysolutionsinc.com.

SINGLE-POLE

SWITCHING

SAFETY PROCEDURES

COUNTER

INSPECTION

Do not use this tool on applications where the maximum system voltage

exceeds the maximum design voltage rating of the tool. Likewise, do not use a

tool that is “over-rated” for the application.

The USLR-FLEX-2 model should NOT be used inside padgear or cabinets, even

if ﬁtted with an extended hood.

The LOAD-RANGER® FLEX-LT™ Portable Load Break Tool should be stored in a clean,

dry place. Damp and/or high humidity environments should be avoided. Utility Solutions

recommends storing in the hard case (USLR-XLT-HARDCASE).

STORAGE

LOAD-RANGER® FLEX-LT™ Operation Manual 5

OPERATION

Traditional Load Break operation practices specify that the tool should always be

installed on the arcing horn opposite the operator as to reduce binding positions

and stress on the tool. While this practice remains sound, the innovative design

of the Load-Ranger® FLEX-LT™ allows a much broader range of operation than

traditional load break tools. The rotating head of the Load-Ranger® FLEX-LT™

greatly reduces or eliminates most binding positions, tool stresses, and greatly

improves ﬂexibility when attaching the tool.

The below graphic oﬀers a helpful reference when determining proper

attachment. If a discrepancy exists between this manual and your work methods,

always follow the procedures set forth by your work methods. For questions,

contact Utility Solutions, Inc. at 828-323-8914.

TOOL OPERATION

2) Pull in a smooth, steady motion

until the tool is fully extended and

the load has been broken.

1) Reference the graphic above and

install the tool accordingly by ﬁrst

hooking on to the arcing horn

followed by the fuse ring.

3) Rotate the tool upward to release

the fuse ring, then lift the tool from

the arcing horn. The tool can now

be reset for the next operation.

(Cutout Top View)

Attach To Right Horn

Attach To Left Horn

Attach To Either Horn

Indice

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