Objectives
At the end of the course participants will able:
- Identify medium voltage cable components and causes of failure
- Isolate faulted sections using advanced sectionalizing techniques
- Utilize safe work practices for cable testing and industry consensus standards
- Minimize supply disruption by locating cable faults more quickly
- Reduce expenditure by accurately locating faults first time avoiding multiple excavations
- Develop an understanding of the interaction between power system elements
- Gain expertise in using the latest power cable fault detection equipment
- Update your knowledge of the latest techniques and technology
Outlines
Day 1:
Introduction to Power Cable
- Purpose of Power Cables
- Power Cable Construction
- Conductor
- Strand Shielding
- Insulation
- Jacket
- Power Cable Termination
- Conditions Causing Cable Faults
- Bending
- Sidewall Pressure
- Puncture
- Abrasion
- Corrosion
- Treeing
Day 2:
Introduction to Power Cable Testing
- Purpose of Power Cable Testing
- Acceptance Testing
- Maintenance
- Insulation Resistance Test
- Method for Testing Insulation Resistance
- Insulation Resistance Test Sets
- Typical Test Connection
- Basic Insulation Resistance Test Guide
- Introduction to Curves Used in Evaluating Test Results
- Insulation Dielectric Strength Test Resistance Test Guide
- Types of Dielectric Strength Tests Resistance Test Guide
- Typical DC Dielectric Strength Test Set Resistance Test Guide
- Typical DC Dielectric Test Set Connections Resistance Test Guide
- Basic Insulation Dielectric Strength Test Guide Resistance Test Guide
- Introduction to Curves used in Evaluating of Test Results
Day 3:
Power Cable Testing
- Safety Precautions
- Insulation Resistance Test
- Insulation Dielectric Strength Test
- Current Avalanche
- Other Unusual Currents
- Ionization Control
- Voltage Regulation
- Insulation Resistance
- Testing Intervals
Day 4:
Cable Fault Location
- Purpose for Power Cable Fault Location
- Locate Faults in Above Ground Primary Cable
- Locate Faults in Buried Primary Cable
- Test the Cable
- Analyze the Data
- Localize Pre- locate the Fault
- Locate Pinpoint the Fault
- Safety Precautions
- Fault Location Equipment
- System Overview
- Grounding System and HV Connections
- Cable Fault Location Methodology
- Surge Tracing
Day 5:
Radar Cable Fault Location
- Safety Precautions
- Purpose for Radar Fault Locating
- Principles of Operation
- Description of Radar Test Set
- General Instruction
- Cable Fault Location Testing
Who Should Attend
- This course is intended for new and experienced electricians and technicians that install, maintain, repair or troubleshoot power cables.
- Electrical Plant Engineers & Technicians
- Electrical Maintenance Engineers & Technicians
- Electrical Operation Engineers & Technicians