As you work and study in electrical engineering you are going to run into proofs and equations that are based on trigonometry. For example, there are lessons that take you from the “ Fundamentals of Trigonometry” to the more sophisticated requirements in electrical engineering. This site contains special supplemental lessons that zero in on those identities and equations. Supplemental Electrical Lessons In all power electrical analyses, the student will encounter special Trigonometric and Mathematical identities and equations. These courses will provide you with the knowledge to comprehend the concept and how it is applied. An understanding of this method is essential for the understanding of fault analysis and modern-day protection schemes. These sets of phasors are called the positive, negative, and zero sequence components. The method of “ Symmetrical Components” is used to simplify asymmetrical three-phase voltages and current analysis by converting the unbalanced system into two sets of balanced phasors and a set of single-phase phasors, or symmetrical components. It is important for all power engineers and technicians to be familiar with the concept of Per Unit as it is being used and referred to every day in power flow, short circuit evaluation, and motor starting studies. When you finish you will have a though understanding of this subject. Several examples of working with Per Unit are demonstrated in this crisp clear presentation. In these courses, you will learn exactly what Per Unit Analysis is, the main advantages of using it, how manufacturers of equipment use and rate their products, and the technique of converting to and from the Per Unit system. Calculations are simplified because quantities expressed as per unit do not change when they are referred from one side of a transformer to the other. “ A Per-Unit System” is the expression of system quantities as fractions of a defined base unit quantity. With hey Searle and extensive study of “Per Phase” & “Per Unit” methodologies system faults are analyzed with the use of symmetrical components. System modeling is then used in order to aid in this process, with the ability to move between asymmetrical and symmetrical systems. This includes working with AC Power, Power Factor, Resonance, Complex Numbers, Reactance, and Impedance Advanced Electrical Learning These Courses involve subjects such as “ Short Circuit Analysis for HV Three-Phase Systems” which introduces the student to the basic concepts of fault studies on a high voltage three-phase system. These AC courses deal specifically with sinusoidal waveforms and will provide the student with the basic understanding of working with circuits involving Alternating Current, which includes sinusoidal waveforms, vectors & phasors, reactance & impedance of R,L,C circuits, as they relate to the basic laws and theorems of electricity. The abbreviations AC and DC are often used to mean simply alternating and direct, as they are applied to current or voltage. Alternating Current (AC – an electric current that periodically reverses direction) is the form in which electric power is delivered to businesses and residences, and it is the form of electrical energy that consumers typically use when they plug kitchen appliances, televisions, fans, and electric lamps into a wall socket. Conductors and Insulators are investigated along with their connected components, Capacitors, Inductors, and how they are influenced by Electromagnetism. Subsequently, this will lead to the development of Kirchhoff’s Laws as they help to further analyze Network Analysis & Metering Circuits. The first, and perhaps most important, relationship between current, voltage, and impedance, “Ohm’s Law”, and its relevance to Series and Parallel Circuits. These lessons examine such basics as Ohm’s Law, Series, and Parallel Circuits. Basic Electrical Learning For those new to the industry, there is a beginner’s group of courses that cover the “ Fundamentals of Electricity” including DC and AC Circuit Analysis. I have also taken suggestions from students of what they would like to see in addition to these courses which I have given live in person. As a retired electrical engineer who has gone through the experience of developing a career in electrical power systems, I know how frustrating it can be to try and find the answers, so I put together these courses that I feel would have been a major help to me in my development. “ Power Systems Electric” is On-Line training that bridges the gaps between textbook theories and practical power systems experience. Whether you are new to the industry or are well seasoned and want to review some of the basic information that you learned in the past, these courses and lessons will clearly outline what you are looking for.
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