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EE119: Electrical Maintenance,

Testing, Inspection and Risk Assessment

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Training Description:

To successfully inspect and test electrical equipment, Electrical personnel must first fully understand the technology of the electrical equipment. After the successful start-up and subsequent continued operation, electrical equipment requires periodic inspection and testing.

This will ensure the electrical equipment operates correctly so that production is maximized in a safe, cost effective and efficient manner.

Delegates are encouraged to raise queries both during and at any time after attending the course and are also asked to bring with them any technical issues that they may have.

Training Objective:

By the end of the training, participants will be able to: Return to their respective organizations equipped with new or refreshed skills to ensure that

electrical equipment is inspected, tested and operated in safe and a fashion that ensures reduced costs

Have a better understanding of maintenance purposes and types Have better understanding of inspection and testing methods Understand the principles of risk assessment and be able to apply these to the formulation of an

appropriate policy for the maintenance of electrical equipment Know the types of construction of electrical equipment for preventing electric shock and the

hazards that can arise from defective equipment Have a better understanding of the updated electrical condition monitoring Have a better understanding of troubleshooting procedures Improve their capability in testing equipment Have a better understanding of safety issues Have a refreshed outlook on reading electrical drawings

Training Designed for:

This course is intended for all Electrical Engineers, Electrical Supervisors and Electrical Technicians engaged in the maintenance, inspection and testing of Electrical Equipment. Because the methods and examples are generic, personnel from all industries will benefit. Participants require a good understanding of electricity and magnetism and possess some relevant experience.

Training Program:

DAY ONE:

PRE-TEST Introduction Principles of Maintenance

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Preventive Maintenance (PM)

o Basics o Elements

Predictive Maintenance(PdM) (Condition-Based Maintenance) (CBM) o The Basic Concept of Predictive Maintenance o Benefits of Predictive Maintenance

Impact of Maintenance o Role of maintenance organization o Types of Maintenance

o Maintenance Improvement o Corrective Maintenance o Preventive Maintenance o Reactive Maintenance o Condition Monitoring o Scheduled Maintenance

Maintenance Scheduling for Electrical Equipment

Introduction

Maintenance and Test Procedures o General o Infrared Scanning o Fault and Load Flow Studies/Equipment Ratings o Electrical Equipment Monitoring o Maintenance Schedules and Documentation

Electrical equipment maintenance schedules (Transformers, Generators, Power Cables, Batteries and Battery Chargers.)

DAY TWO: Testing, Troubleshooting Principles and Commissioning Guide of Electrical Equipment

Introduction

Basic principles in using a drawing and meter in Troubleshooting circuits

Checks for circuit continuity with disconnected supply

Checks for circuit continuity with live supply

Tests and methods

Testing devices

Testing and Commissioning Methods

Testing and Commissioning Procedures.

Maintenance of Particular Types of Electrical Equipment

Nomo gram for temperature correction

Test voltages for Commissioning and Maintenance

Recommended insulation values for equipment Condition Monitoring for Electrical Equipment

Approaches Based on Mathematical Models o Reliability Centered Maintenance (RCM) o Condition Based Maintenance (CBM)

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o Partial Discharge

Insulation Resistance Monitoring o Insulation resistance test (IR) o Megger test o Polarization index test o Dc hi-pot test o Measuring insulation degradation o Insulation power factor o On line measuring partial discharge activity for insulation

On-Line Monitoring of Transformers o Local Indications o Thermography o PDA - Partial Discharge Analysis o Insulating Oil Properties and Tests

o Test for Dielectric Strength o Water Content in Oil o Acidity Test (Neutralization Number) o Oxidation Inhibitor o Interfacial Tension Test (IFT) o Oil Color o Oil Power Factor Test o Insulating Oil Dissolved Gas Analysis (DGA)

Understanding cable thermal behavior after installation o Optical cable Temperature Monitoring

DAY THREE:

Earthing Systems

Introduction

Equipment Earthing

System Earthing o Unearthed systems o Solid earthing o Resistance earthing o Reactance earthing

Classification of Supply / Installation System Earthing

Earthing Via Neutral Earthing Compensator o Distribution transformers o Zig Zag transformers

Comparison of Methods (Advantages/Disadvantages) o Evaluation of earthing methods

Safety and Risk Assessment

Touch and Step Voltage

Effect of electric shock on human beings

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Electric shock and sensitive earth leakage protection

Sensitive earth leakage protection

Arc Flash

Risk assessment principals

How to assess the risks in your workplace?

How to conduct risk assessment?

Risk assessment Job Briefing and Planning Checklist Case Studies

DAY FOUR: Generator Fundamentals Maintenance, Testing And Trouble Shooting

Principles of Generators o AC Generators o GENERATOR EXCITATION AND VOLTAGE CONTROL o DIESEL GENERATOR SETS o SYNCHRONISING OF GENERATORS o LOAD SHARING o LOAD SHEDDING

Preventative Maintenance

Trouble Shooting o General Procedure o Generator Does Not Produce Voltage o Generator Produce Low Voltage o Generator Produce High Voltage o Generator Voltage Fluctuating

Fault analysis for Generator Control Circuit Motors, Motor Controller, Motor Starters Fundamentals, Maintenance and Troubleshooting

o Fundamentals o Types of A.C Electric Motors o Principles of Operation of the Induction Motor o Enclosures and Cooling o POWER FOR INDUCTION MOTORS o STARTING OF INDUCTION MOTORS o Motor Operation at Reduced Voltage o Power Factor Correction

o Motor Testing o Motor Failures

DAY FIVE:

Circuit Breaker Fundamentals, Maintenance, Service, Testing and Troubleshooting

Fundamentals o Air Circuit Breakers. o Vacuum Circuit Breaker o SF6 Circuit breaker

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o Oil Circuit Breaker Ratings o Fuses o Trip Circuit Supervision o Circuit-Breaker Control o Low Voltage Molded Case Current Limiting Circuit Breakers

HV Circuit Breakers Maintenance

HV Circuit-Breakers Tests

Low voltage Circuit Breaker Maintenance Transformer Fundamentals, Maintenance, Testing and Troubleshooting

Principles of Transformers o Saturation Curve & Voltage Ratio of Transformers o Current Ratio & Impedance of Transformers o Transformer Construction o Transformer losses and efficiency o Transformer Cooling & Types o Transformer Polarity o Transformer Applications o Transformer Accessories o Maintaining Transformers

Preventative Maintenance o Transformer Inspection o Transformer Liquids o Dielectric Test o General Testing o Other Important Tests o Transformer Failure o Disassembly for Inspection

Common Transformer Abnormalities

Transformer Oil Tests

Fault Analysis UPS, Rectifiers, Inverters and Batteries Fundamentals Maintenance, Testing and Troubleshooting

UPS Fundamentals o Rectifications & Inverters o Inverters o Batteries and Battery Charging o Battery Charging Tests o Safety During Battery Charging o Mixing Electrolyte

Battery discharge test.

Troubleshooting Guide Course Conclusion POST-TEST and EVALUATION

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Training Requirement:

“Hand’s on practical sessions, equipment and software will be applied during the course if required and as per the client’s request”.

Training Methodology:

This interactive training course includes the following training methodologies as a percentage of the total tuition hours:-

30% Lectures, Concepts, Role Play

30% Workshops & Work Presentations, Techniques

20% Based on Case Studies & Practical Exercises

20% Videos, Software & General Discussions

Pre and Post Test

Training Certificate(s):

Internationally recognized certificate(s) will be issued to each participant who completed the course.

Training Fees:

As per the course location - This rate includes participant’s manual, hand-outs, buffet lunch, coffee/tea on arrival, morning & afternoon of each day.

Training Timings:

Daily Timings: 07:45 - 08:00 Morning Coffee / Tea 08:00 - 10:00 First Session 10:00 - 10:20 Recess (Coffee/Tea/Snacks) 10:20 - 12:20 Second Session 12:20 - 13:30 Recess (Prayer Break & Lunch) 13:30 - 15:00 Last Session For training registrations or in-house enquiries, please contact: Aisha Relativo: aisha@cmc-me.com Tel.: +971 2 665 3945 or +971 2 643 6653 | Mob.: +971 52 2954615 Training & Career Development Department