Electrical Engineering for Non‑Electrical Engineers
This seminar is for individuals who would like to gain a thorough understanding of all the principles of electrical engineering in a simple and easy to grasp format and will cover all disciplines of electrical engineering including alternating current systems, direct current systems, magnetism, power equipment, switchgear, and protective equipment without relying on complex mathematics.
The seminar is a MUST for any individual seeking an in-depth knowledge of all the principles, and practices of electrical engineering as well as electrical equipment or an electrical engineer who would like to refresh and enhance their understanding of electrical equipment. It will be taught in an easy to understand manner by demonstrating practical examples of applied electrical engineering through illustrated case studies and will also provide a comprehensive understanding of the operation and maintenance of all essential electrical equipment including the various types of transformers, inverters, rectifiers, motors, variable frequency drives, uninterruptible power systems, generators, excitation systems, circuit breakers, and fuses.
The seminar will also cover how electrical equipment operates, the latest maintenance techniques, and provides guidelines and rules that ensure the successful operation of this equipment. Participants will learn how to select and size all electrical equipment as well as how to specify the main maintenance activities required for all electrical equipment. In addition, the seminar will cover thoroughly all the safety concepts associated with electrical equipment.
The following information will be provided for all electrical equipment:
- Basic Design
- Selection Criteria
- Sizing Calculations
- Enclosures and Sealing Arrangements
- Codes and Standards
- All Testing and Maintenance
Who should attend
- Engineers of all disciplines
- Maintenance personnel
- Other technical individuals (this seminar is suitable for individuals who do not have an electrical background)
What you will learn
- An understanding of the operating characteristics of all electrical equipment.
- The diagnostic techniques and inspections required of critical components of electrical equipment.
- Understand thoroughly all the tests required for the various types of electrical equipment.
- Determine the maintenance and troubleshooting activities required to minimize electrical equipment downtime and operating cost.
- A detailed understanding of all the calculations and sizing techniques used for all electrical equipment.
- How to select electrical equipment by using the performance characteristics and selection criteria that you will learn in this seminar.
- The various types of enclosures and sealing arrangements used for electrical equipment.
- The codes and standards applicable for electrical equipment.
The instructor relies on a highly interactive training method to enhance the learning process. This method ensures that all participants gain a complete understanding of all the topics covered. The training environment is highly stimulating, challenging, and effective because participants will learn by case studies which will allow them to apply the material taught to their own organization.
Each participant will receive a copy of the following materials written by the instructor:
- Excerpt of the relevant chapters from the "Electricial Equipment Handbook" published by McGraw-Hill in 2003
- Practical Manual
Day 1 – Fundamentals of Electrical Systems, and Transformers
- Inductors, capacitors, alternating current, Faraday’s law, magnetic field, three-phase system
- Machinery principles, magnetic behavior of ferromagnetic materials, energy losses in a ferromagnetic core, core losses, permanent magnets
- Transformers, types and construction of transformers, impedance transformation through a transformer, analysis of circuits containing transformers, equivalent circuit in a transformer
- Voltage regulation, transformer efficiency, transformer taps and voltage regulators, autotransformers, three-phase transformers, transformer ratings, inrush current, instrument transformers
- Transformers’ characteristics, phase relationships, Star/Star connected transformer, basic materials, dielectrics, copper, iron, insulation, leakage reactance, core construction
- Components of a power transformer, core, windings, nitrogen demand system, conservative tank with air cell, current transformers, bushings, tap changers, insulation
Day 2 – Motors, Inverters, Variable Speed Drives, Uninterruptible Power Systems, and Industrial Batteries
- Rotating magnetic field, relationship between electrical frequency and the speed of magnetic field rotation, RMS voltage in a three-phase stator, induced torque in a three-phase machine, winding insulation in ac machines, ac machine power flow and losses
- Induction motor construction, rotor slip, electrical frequency of the rotor, losses and the power flow diagram, induction motor torque-speed characteristics, variation of the torque-speed characteristics, starting induction motors, induction motor starting circuits
- Variable speed (frequency) drives, principles of ac variable speed drives, inverters, insulated gate bipolar transistors (IGBT’s), pulse-width modulated inverters, input power converter (rectifier), output IGBT inverter, magnetic breaking, regeneration, transients, harmonics, power factor and failures, common failure modes, thyristor failures and testing, IGBT switching transients, cabling details for ac drives, motor bearing currents, selection criteria for variable speed drives, maintenance, common failure modes, motor application guidelines
- Uninterruptible power systems (UPSs), UPS operation, standards, voltage regulation, harmonic distortion, advanced UPS design, efficiency, input power converter, inverter, battery system, remote UPS monitoring, testing of UPS, commissioning of UPS, UPS maintenance, battery maintenance, UPS sizing, battery selection, space vector modulation technology, electromagnetic and radio frequency interference
Day 3 – Generators, Excitation Systems, Automatic Voltage Regulators, Generator Testing and Maintenance, Circuit Breakers, Fuses, Classes and Divisions of Hazardous Locations, Ingress Protection Code, NEMA Enclosure Types, Voltage Drop Calculations, Cable Tray Features and Design, and Frequently Asked Questions
- Synchronous generators, construction, synchronous generator operating alone, parallel operation of ac generators, synchronous generator ratings, synchronous generator capability curves
- Generator components, auxiliaries and excitation, the rotor, the stator, cooling systems, shaft seals and seal oil systems, excitation, the voltage regulator, the power system stabilizer, characteristics of generator exciter power systems (GEP), generator operation
- Generator surveillance and testing, generator operational checks (surveillance and monitoring), generator diagnostic testing, insulation resistance and polarization index, dc hipot test, ac tests for stator windings, synchronous machine rotor windings, partial discharge tests, mechanical tests
- Circuit Breakers, circuit breaker rating, plain break type, magnetic blow-out type, oil circuit breakers, recent developments in Circuit Breakers, vacuum circuit breakers, sulphur Hexafluoride (SF6) Circuit Breakers, maintenance and inspection of circuit breakers
- Fuses, Types of fuses, features of current limiting fuses, advantages of fuses over circuit breakers
- Classes and Divisions of Hazardous Locations, basic requirements for an explosion, flammable substances, oxidizer, ignition source, explosion prevention methods, principles for preventing electrical equipment from becoming a source of ignition, design regulations for explosion-proof electrical equipment, group and class definitions, protection methods, marking, execution to NEC/CEC Standards
- Ingress Protection (IP) Code, Objective of the IP code, description of the IP code, code breakdown, solid particle protection, liquid ingress protection
- NEMA Enclosure Types, definitions, applications, IEC enclosure classifications
- Voltage drop calculations, voltage drop in DC circuits, voltage drop in AC circuits, calculation of voltage drop in single-phase and three-phase circuits, calculation of voltage drop for long paired wire runs, formula methods for calculating the voltage drop and cable size, cable size selection
- Cable tray features, benefits, design, materials, and loading; reliability, adaptability, maintenance, safety, design, selection process, deflection, materials, finishes, corrosion, chemical species
- Frequently asked questions