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DEN2-SP Advanced Engineering Practice - Electrotechnology

  • Duration:
  • Investment: US$ 249
Certificate:

Must complete all lessons

Content

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Description

The electro technology industry impacts on almost every aspect of daily life. The technology ranges from traditional light and power, hardware platforms and networking automation to virtual enterprise, the internet and fibre optics. 
The industry requires proper installation, servicing, repair and maintenance of electrical and electronic equipment for industrial, commercial and domestic purposes in order to achieve safety. It comprises of communications, distribution and transmission, electrical generation, computer data and communications, cabling systems and Sustainable/Renewable Energies. 
This course is designed to help students to become knowledgeable with the basic electrical theory, single and three phase systems, types of filters, principles of DC Generators and Synchronous Generators.
After completing this course, students will be able to select, install, set up, test, fault find, repair and maintain electrical systems and equipment in buildings (commercial and domestic) and premises.

WHO SHOULD COMPLETE THIS COURSE

  • Electrical Engineers
  • Energy Managers
  • Plant/Facility Engineers
  • Maintenance Supervisors 
  • Maintenance Technicians 
  • Electrician
  • Electrical Mechanic
  • Electronics Technician
  • Communications Technician
  • Instrumentation Technician

COURSE OUTLINE
SINGLE PHASE SYSTEM

  • Inductive Reactance
  • Capacitive Reactance
  • Impedances in Series
  • Worked Examples
  • Impedances in Parallel
  • Worked Examples

POWER FACTOR

  • Power factor improvement
  • Effect of shunt capacitance on current phases
  • Power factor correction
  • Power factor Calculation
  • Three phase AC
  • Three phase star connection
  • Three phase delta connection

THREE PHASE SYSTEM

  • Electrical power 
  • Instantaneous power
  • Average power
  • RMS power
  • Three phase system connections
  • Examples

ELECTRICAL POWER AND ENERGY

  • Active power 
  • Reactive power
  • Electric power
  • Apparent power
  • Power factor

CALCULATION EXAMPLES FOR DELTA AND STAR CIRCUIT

  • Calculating system phase voltage
  • Calculating phase current
  • Calculating line current

CONVERSION OF DELTA TO STAR CIRCUIT

  • Delta – Star conversion application example

FOURIER SERIES – SAW TOOTH WAVE

  • Periodic functions
  • Fourier series
  • Fourier series – Saw tooth wave

FOURIER SERIES – TRIANGLE & SQUARE WAVE

  • Fourier series – Triangle wave
  • Python program
  • Fourier series – Square wave
  • Python program

FILTERS

  • Signal attenuation
  • Basic filter types

HIGH-PASS FILTER AND RESONANCE

  • 1st order High-pass filter 
  • High-pass filter characteristics
  • Calculation example    
  • Network Impedance
  • Series Resonance

DC GENERATORS

  • Principle
  • Magnetization curve
  • DC machine construction
  • Types

CHARACTERISTICS OF DC GENERATORS

  • Internal and external characteristics
  • DC machine characteristics
  • Specially excited DC machine
  • Shunt excited DC machine
  • Series excited DC machine
  • Comparison of characteristics

AC MACHINES AND INDUCTION MOTORS

  • Principles of operation
  • Stator and Rotor
  • Squirrel cage Induction motor
  • Stator and Windings
  • Deep bar and Double cage Rotor

INDUCTION MOTOR AND GENERATOR

  • Speed of AC Induction Motor
  • Actual Rotor Speed
  • Rotor Slip
  • Induction Generator Principle
  • Induction Generator Performance

SYNCHRONOUS GENERATORS

  • Electrical machine
  • Generator principle
  • Rotating magnetic field
  • Types of synchronous machines
  • Salient pole Rotor
  • Cylindrical rotor

SYNCHRONOUS MOTORS AND GENERATOR REACTANCE

  • Starting of synchronous motors
  • Generator impedance
  • Conversion of reactance
  • Calculation of Impedance and Fault current


 

Investment

Plan Name Investment
Unlimited Access for 2 Years: US$ 249

Instructor

Robert Holm

Robert Holm, PhD, MIEEE

 

After completing his studies in Electrical and Electronic Engineering (MEng) and applied mathematics (BSc Hons) in 1997, Robert worked in industry as a power electronics design engineer. The design of electrical machines was his next pursuit, and he completed a PhD at TU Delft in the Netherlands on this subject. His thesis project was not only an academic study, but very practical: a high-speed permanent-magnet synchronous machine (PMSM) was built from his design and mounted as part of a flywheel in a passenger bus in Eindhoven, where it was in active service for several years. Upon his return to South Africa, Robert worked in teaching and research at two universities: University of Johannesburg (UJ) and North-West University (NWU). While at NWU, he designed three more high-speed PMSMs for industrial and research applications. He was also involved with solar, wind and hydrogen energy systems. Next, Robert ventured into the gold mining industry by working for Gold Fields Mining Innovations as electrical engineer, where he completed novel electromechanical and power electronics designs for mining robots. His experience in mining robotics then led him to the South African Council for Scientific and Industrial Research (CSIR), where he worked in field robotics software development. Since late 2014, Robert moved back into his previous field of electrical machine design via an internal transfer to the CSIR Landward Sciences competency area. Several high- and low-speed machines are being designed for military and civil applications (particularly the rail industry). His current activities include electrical machine design, power electronics, drives and power systems, control systems and PLC/SCADA applications. Robert's previous career experience includes: software engineering, mathematical modeling, computer vision, robotics, sensors, systems engineering, transformers, switchgear, power systems and other high-power electrical engineering, embedded design, industrial power systems and renewable energy.

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