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Megger SMART THUMP 25-30 User Manual

Portable / vehicle mounted fault locating system

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Table Of Contents

Table of Contents

Table of Contents
Safety
Precautions
Warning and Caution Notices
Working with the Product
Operating Personnel
Repair and Maintenance
General Cautions and Warnings
Intended Application
What to Do if Equipment Malfunctions
Five Safety Rules
Important Safety Advisory Note - When Working with Hv Surge Generator / Thumper
Requirements for Safe High Voltage Work Environment
Technical Description
System Description
Functional Description
Product Models
Features
Scope of Delivery
Available Accessories
Technical Data
Control Elements, Indicators and Connectors
Power Supply
Battery Operation
Introduction
Battery Status and Automatic Shutoff
Backup Battery / DC Power Supply
Charging
120/230V AC Line Operation
Setting up the System
Connection Diagram
Connection Sequence
Operating Instructions
Power on the System
Basics of Operation
Operation with Rotary Knob
High Voltage Control
Safety Circuit
Introduction
Conditions of the Safety Circuit
User Modes
System Settings
How to Perform a Test
Detecting and Locating a Cable Fault in a Shielded Medium Voltage Power Cable
Locating a Faulty Cable Segment (Sectionalizing)
Introduction
How to Determine the Faulty Section
How to Verify Whether It Is Actually a Bad Section
Locating a Cable Fault (Shielded MV Power Cable)
How to Test the Dielectric Strength of the Cable
How to Pre-Locate the Fault
Arc Reflection Method (ARM)
Current Decoupling (ICE)
How to Pinpoint a High Resistance (Flash-Over) Fault
Detecting a Sheath Fault in a Shielded Medium Voltage Cable or a Ground Fault in an Unshielded, Low Voltage Cable (both Must be Directly Buried)
How to Pinpoint a Sheath Fault in a Shielded Medium Voltage Cable or a Ground Fault in an Unshielded Low Voltage Cable (both Must be Directly Buried)
CUSTOMIZE TDR FEATURES (Applicable to TDR and ARM Mode)
Introduction
Customized TDR Features
Completing the Operation
Advanced System Settings
How to Edit the Cable List
Introduction
XML Structure of a Cable List File
How to Edit the Cable List
How to Setup Customer-Specific TDR Features
How to Use Easyprot Software to Plot DC Hipot/Sheath Test Data
CARE and MAINTENANCE
Maintenance
Storage
Overview of TDR Features

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ST25-30-UG-EN-V03

User Manual

Portable / Vehicle Mounted

Fault Locating System

SMART THUMP ST25-30

covering units with and without

MULTI SHOT Capability

Read this entire manual before operating.

Valley Forge Corporate Center

2621 Van Buren Avenue

Norristown, PA 19403-2329

U.S.A.

610-676-8500

www.megger.com

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