Electrical Principles

Course Duration

4 Days

Upcoming Dates

  • June 7th, 8th, 13th, 14th -


NEXT AVAILABLE COURSE: September 6th |  PRICE: Please contact us for Skills to Advance funding details

Our Electrical Principles course will equip learners with the knowledge, skills and competencies in the principles underpinning the functioning of electrical circuits. An understanding of fundamental principles leads to a true understanding of electrical hazards and will result in safer working practices.

Skills to Advance Funded training

Apply now, contact Aoife McDaid at amtceskillstoadvance@lmetb.ie or 086 035 7568.

Those who should attend

This course is ideally suited to those who want to develop knowledge of the basic concepts of electrical engineering principles in order to understand and predict how electromagnetic devices and electrical circuits will operate within their workplace and have the ability to communicate effectively with colleagues regarding electrical issues.

Why should I attend?

An understanding of the relevant concepts and theories of electromagnetic devices and circuits is the foundation needed for the correct operation of measuring instruments which are of vital importance in all AC and DC electrical circuits and equipment. In addition, the ability to understand electrical schematics and circuit diagrams is a key skill for maintenance technicians. The Electrical Principles course is an ideal foundation for the Industrial Electrical Systems course as it equips learners with a solid understanding of the operating principles of electrical circuit components and the skills to navigate electrical schematics. This knowledge will underpin the fault-finding and diagnostic skills that are developed in the Industrial Electrical Systems module.

Course Objectives

At the end of the course learners will be able to:

  • • Understand how to describe the characteristics of conductors and insulators and the underlying atomic structure that govern these characteristics.
  • • Understand the units and characteristics of electrical circuits and the laws that govern their relationship to each other.
  • • Understand the behaviour of various electrical components including capacitor, inductors, transformers, and the laws that govern their behaviour.
  • • Outline the functioning of electrical circuits under direct current and alternating current conditions.
  • • Understand the consumption of power in electrical circuits, and the factors that affect it.
  • • Calculate the values of various characteristics given sufficient information.
  • • Understand the construction of basic electrical circuits.
  • • Use electrical test meters to diagnose and resolve problems with the functioning of electrical circuits.
  • • Demonstrate an ability to read and draw circuit diagrams.
  • • Resolve circuit malfunctions, applying a systematic, logical, and analytical approach.
  • • Interpret test results

Course Modules

Module 1 /

Unit 1

Electrical Properties – At the end of this module, learners should be able to:

  • Describe the atomic structure of conductors and insulators.
  • Investigate the heating, magnetic and chemical effects of electric current.
  • Resistor theory and colour code – materials, temp co-efficient, resistor types (e.g metal oxide etc). Construct Resistor Networks and conduct measurements
  • Define current, voltage, resistance, energy and power.
  • State the units used for current, voltage, resistance, energy and power
  • Investigate the factors that affect the resistance of a conductor
  • Explain Ohm’s Law and Kirchoff’s Laws
  • Design and construct a Wheatstone bridge and describe its importance in control circuits
Module 2 /

Unit 2

Electric and Magnetic Fields– At the end of this module, learners should be able to:

  • Explain Electrostatics, sources of static, static protection, screening of cables.
  • Investigate Capacitors, types, series and parallel and the energy stored in them.
  • Explain the function of a Capacitor including materials and common applications
  • Perform capacitor calculations including time constant and how to calculate the capacitance of a circuit containing capacitors in series and parallel.
  • Construct Capacitor Networks and conduct measurements
Module 3 /

Electromagnetic Induction – At the end of this module, learners should be able to:

  • Using the laws of EM Induction explain the operation of a double wound transformer.
  • Determine the outputs of a transformer.
  • Explain the use of transformers.
  • Explain the principle of operation of relays and contactors
  • Explain the principle of operation of an AC motor, a DC motor and generators.
  • Explain Inductor coil theory and applications
Module 4 /

AC Circuits – At the end of this module, learners should be able to:

  • Define Peak, Peak to Peak, r.m.s. values of a sinusoidal waveform
  • Explain Phase Shift
  • Describe the magnitude and phase relationships between alternating currents and voltages in circuits comprising of pure:
    • Resistance
    • Capacitance
    • Inductance
  • Define: Reactance, Impedance and Resonance.
  • Investigate currents, voltages and phase angles in series/parallel RL and RC circuits.
  • Investigate Power – True, Apparent and reactive ; PF and PF Correction
Module 5 /

Principles of Measuring/Test Instruments – At the end of this module, learners should be able to:

  • Explain the principles of operation of:
    • Digital Multimeters (DMM)
    • Analogue Meters
  • Explain the need for and purpose of:
    • PAT Testing
    • Insulation Resistance Testing
  • Demonstrate the use of the following in a range of situations;
    • PAT Tester
    • Insulation Resistance Tester
    • Digital Multimeters (DMM)
Module 6 /

Fault finding and Circuit Diagrams – At the end of this module, learners should be able to:

  • Draw and understand Circuit Diagrams – Motor control and VSD systems
  • Apply logical Fault-Finding techniques to identify circuit malfunctions
Module 7 /

Report Writing – At the end of this module, learners should be able to:

Write a Technical Report that conforms to writing guidelines and best practice


Module # /
  • Practical Exam (30% of total Mark) 40% threshold must be reached.
  • Theory Exam (40% of total Mark) 40% threshold must be reached.
  • Written Project (30% of total Mark) (40% threshold must be reached). Learners will have 3 weeks in which to complete this and it will be based on material covered during the course

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