By the end of this course, participants will be able to:

• Understand Ac electrical motors types and construction .
• Understand the Different motors design and theory of operation .
• Be Aware with different voltage levels for motors ( MV / LV ) .
• Be familiar with motors installed in hazard area in Oil & Gas plant .
• Know How To Select And Size The Motor For Most Applications
• Know The Common Reasons For Motor Failures With Several Practical Examples
• Know What To Do When The Motor Fails .
• Know How To Predict The Likelihood Of A Future Motor Failure
• Understand electric drives power circuits .
• Be familiar with speed control methods of AC motors including variable speed drives
• Understand electronic circuits for motor control .
• Understand The Required Maintenance Of The Motor .
• Know How To Protect The Motor Using Overload Relays, Temperature Relays, Vibration Monitors And Other Protective Devices.
• Know How to generate Datasheet for motors.
• Know the New designs/types in motors industry.

Electrical engineers , supervisors and technitions

• Presentation
• Case study
• Life examples
• Video Demo
• Group Discussion
• Workshop

Module One:

       Introduction

• Basic Motor Control Theory
• AC Induction Motors
• Single phase motors
• Three phase motors
• Synchronous motors
• Difference between synchronous and Asynchronous motors
• Wound Rotor motors
• DC motors
• Motors construction
• Motors equivalent circuit

Motor Control

• Motors speed / torque characteristics
• Motors control
• Speed control of motors
• Variable speed drives
• Starting methods for motors
• Hazard area classification
• Motors classified for oil & gas fields
• Motors operation and selection
• Motors termination
• Protection of electric motors
• Troubleshooting of motors

Module Two:

• Nameplate data
• Motors classified for oil & gas fields
• Motors operation control circuit
• Protection of electric motors
• IEC & NEC motor ratings
• Motors effeciency
• Energy considerations
• Select motors from product catalogue
• Sizing line conductors Sizing fuses and overloads
• Using nameplate data for proper connections
• Selecting the best method of motor termination
• Lugs and insulation tapes for termination
• Termination kits
• Methods of verifying proper phase rotation
• Selecting the best method of motor termination

Module Three:

Condition Monitoring And Diagnostics

• Partial Discharge
• Insulation Resistance Monitoring
• Correction for Winding Temperature
• Insulation Contamination
• IR Test Connections
• Typical IR Testing Program
• DC HI-POT TEST
• Maximum Allowable Test Voltage
• Measuring Insulation Degradation
• Capacitive Charging Current
• Resistive Leakage Current
• Insulation Power Factor
• Insulation Power Factor Standards
• Power Factor Test Sets
• Outage for Scheduled Maintenance
• On Line Measuring Partial Discharge Activity (PDA) For Insulation
• Motor Current Signature Analysis (MCSA)

Module Four:

Maintenance of MV Induction Motors

• Maintenance Requirements
• Cleaning Motors
• Care of Stator Windings
• Care of Rotor Winding
• Motor Shaft Currents
• Inspecting Motor Bearings.
• Different Electrical Testing.
• Electrical Preventive Maintenance Work Instructions.
• Troubleshooting Electric Motors.
• Motor Failures
• Insulation failure
• Over-current/overloading
• Cable box failure
• Rotor burnout
• Bearings
• Vibration
• Induction Motors Troubleshooting Guide
• Motors and Electrical safety

Module Five:

MV Motor Protection

         Introduction

• Motor characteristics involved in protection
• General motor protection
• Phase Fault Protection
• Differential Protection
• Ground-Fault Protection
• Thermal And Locked-Rotor Protection
• Locked-Rotor Protection For Large Motors (21)
• System Unbalance And Motors
• Unbalance And Phase Rotation Protection
• Under-voltage Protection
• Repetitive Starts And Jogging Protection
• Multifunction Microprocessor Motor Protection Units
• Practical Considerations Of Motor Protection
• Effect On System Of Starting A Large Motor
• repeated starting
• Motor Starting Currents
• Achieving Short-Circuit Protection
• Motor Damage
• Motor Operation at Reduced Voltage
• De-rating due to unbalanced currents
• Determination of sequence currents
• Unbalanced supply voltages and single phasing.

CDGA attendance certificate will be issued to all attendees completing a minimum of 80% of the total course duration.