The installation of high voltage distribution and transmission equipment has experienced significant growth in response to the global demand for power. Consequently, ensuring the reliable operation of power systems has become of utmost importance. Among the critical and costly components of power systems are power transformers and switchgear, and their failure can result in substantial financial implications for plants, factories, and utilities of all kinds. It is crucial for personnel working with and operating such equipment to possess a solid understanding of their operational requirements and maintenance practices.

Course Objectives:

At the end of the course participant will gain the following:-

An understanding of the new technologies of electrical equipment maintenance and monitoring.
An understanding of the fundamental theory and principles of the construction and the operation of power transformers.
An insight into the identification and application of transformers’ types.
Knowledge of power transformer protection.
An understanding of power transformers oil and oil tests and interpretation of results.
Knowledge of the most effective power transformer electrical tests.
Skills in how to manage power transformer breakdowns to ensure minimum disruption.
An understanding of Instrument Transformers ( CT &VT) and its applications for measurements and protection.
An understanding of the earthing system and electrical safety.
An understanding of Protection relays types, operation and maintenance.
An understanding of Circuit breakers types, operation and maintenance.
An understanding of Capacitor banks, cables and batteries types, protection and maintenance.

Who Should Attend?

Power System Engineers
Electrical Engineers
Consulting Engineers
Project Engineers
Power System Technicians
Electrical Contractors
Electrical Technicians
Tradesman Electricians
Electrical Inspectors

Course Outlines:

NEW TECHNOLOGIES OF ELECTRICAL EQUIPMENT MAINTENANCE AND MONITORING

Approaches Based On Mathematical Models
Partial Discharge
Testing and Monitoring Solid Insulation of Electrical Equipment
Insulation resistance test (IR)
Megger test
Polarization index test
Dc hi-pot test
Measuring insulation degradation
Insulation Power Factor
On-Line Measuring Partial Discharge Activity For Insulation
On-Line Monitoring Of Transformers
Local Indications
Thermography
PDA - Partial Discharge Analysis
Insulating Oil Properties and Tests
Test for Dielectric Strength
Water Content in Oil
Acidity Test (Neutralization Number)
Oxidation Inhibitor
Interfacial Tension Test (IFT)
Oil Color
Oil Power Factor Test
Recording Test Results

Insulating Oil Dissolved Gas Analysis (DGA)

The objective of Periodic Sampling and Analysis
Drawing Oil Samples
Dissolved Gas “Alert” Limits
Rate of Change of Gas Concentration
Frequency of DGA
Release of CO2 and CO
Fault Gas Release
Release of Acetylene
DGA Test Report
DGA Trends
Continuous Gas Monitoring

Optical cable Temperature Monitoring

Understanding cable thermal behavior after installation
Distributed Fiber Optic Sensors
Raman Distributed Temperature Sensors
Distributed Temperature Sensing (DTS)
Features that allow DTS to work

INSTRUMENT TRANSFORMERS ( CT &VT)

Voltage Transformers Theory, Characteristics, and Applications
Installation Of Voltage Transformers
Maintenance Of Voltage Transformers
Current Transformers Theory, Characteristics, and Applications
Equivalent circuit
Errors (Ratio and Phase)
AC saturation
Selection of CTs
CT magnetization curves
Burden and Calculation of maximum impedance for current transformer　
Precautions when working with CTs
Ratings Of Current Transformers
Installation Of Current-Transformers
Testing of CTs and VTs

TRANSFORMERS

Transformer Fundamentals

Transformer theory
Transformers main functions and classification
Operation of power transformers in a power system
Transformer Types
Power Transformers Earthing Systems
Power Transformer Electrical Tests
Ac Tests
Power factor tests (Insulation, Oil, and Bushings)
Single Phase Excitation Current Test

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