Electric Fundamentals 24 PDH Discount Package

This online engineering PDH course provides a basic introduction to AC theory. The text is arranged to let you progress at your own pace, and concepts and terms are introduced as you need them, with many detailed examples and illustrations.

An alternating current (AC) is an electrical current whose magnitude and direction vary cyclically, as opposed to direct current, whose direction remains constant. The usual waveform of an AC power circuit is a sine wave, as this results in the most efficient transmission of energy.

Like DC, with AC circuits, power is equal to volts x amps, but this is only true instantaneously. Thus the power at any one moment in time is equal to the Volts at that time multiplied by the Amps at that time. If we want to find the average power used, we must take the average of the power at each time interval. Mathematically this is known as Integration. The integral of a sinusoid over one full period is zero, because there is as much time spent below zero as above it.

This 3 PDH online course is intended for professionals as well as individuals who are just beginning a career in electrical work, or who require a basic knowledge of electrical principals and equipment to better their primary responsibilities. This course is also a prerequisite for the all other electrical training.

This online engineerng PDH course provides information on capacitance, including electrostatic lines of force, power losses, working voltage and more.

Capacitance is the property of an electric conductor that characterizes its ability to store an electric charge. An electronic device called a capacitor is designed to provide capacitance in an electric circuit by providing a means for storing energy in an electric field between two conducting bodies. A capacitor in its simplest form consists of two conducting plates separated by an insulating layer called a dielectric. When a capacitor is connected in a circuit across a voltage source, the voltage forces electrons onto the surface of one plate and pulls electrons off the surface of the other plate resulting in a potential difference between the plates.

Capacitance is directly proportional to the electrostatic force field between the plates. This field is stronger when the plates are closer together. Therefore, as the distance between the plates decreases, capacitance increases. Also capacitance is directly proportional to the plate area. Larger plates provide greater capacity to store electric charge. Therefore, as the area of the plates increase, capacitance increases.

This 4 PDH online course is applicable to electrical engineers, design and construction personnel, technical staff and facility personnel who are interested in gaining a better understanding of capacitance.

This online PDH course presents the basics of motor and drive systems and briefly describes important terms, relationships, and system design considerations. It also provides a roadmap for finding opportunities to improve motor performance, as well as exploring the economics of motor systems.

Electric motors, taken together, make up the single largest end use of electricity in the United States. In the U.S. manufacturing sector, electric motors used for machine drives such as pumps, conveyors, compressors, fans, mixers, grinders, and other materials handling or processing equipment account for about 54% of electricity consumption.

To achieve cost-effective operation and maintenance of a motor and drive system, operators must pay attention to the entire system as well as to its individual components. Often, when investigating efficiency opportunities, operators are so focused on the immediate demands of this equipment that they overlook the bigger picture, which includes the ways in which system parameters affect all the equipment.

This online engineering PDH course presents the topic of inductance and its role in the relationship of current, magnetism, and motion. The relationship of current, magnetism, and motion is important to the topic of inductance.

Inductance is the property of an electric circuit component that opposes any change in electric current. It is a measure of the amount of magnetic flux produced for a given electric current and is designated by letter "L". An inductor is a component designed to produce a specific inductance i.e. having no resistance or capacitance. An inductor, when subjected to an increasing electrical current flow, generates a back voltage that opposes this current. Inductance quantifies how much energy an inductor can store and is expressed in henrys (h). An inductor consists of at least one winding of wire, but it usually has more. Examples of inductors or devices having inductance are transformers, chokes, coils relays and motors.

This 3 PDH online course is applicable to electrical engineers, design and construction personnel, technical staff and facility personnel who are interested in gaining a better understanding of inductance.

This online engineerng PDH course provides guidance on inductive and capacitive reactance, their characteristics, functions and more.

Reactance is measure of the opposition to the flow of alternating current caused by the inductance and capacitance in a circuit rather than by resistance. Steady electric currents flowing along conductors in one direction undergo opposition called electrical resistance, but no reactance. Reactance is present in addition to resistance when conductors carry alternating current. Reactance also occurs for short intervals when direct current is changing as it approaches or departs from steady flow (e.g., when switches are closed or opened).

Reactance is of two types: inductive and capacitive. Inductive reactance is associated with the varying magnetic field that surrounds a wire or a coil carrying a current. Capacitive reactance is associated with the changing electric field between two conducting surfaces (plates) separated from each other by an insulating medium.

This 4 PDH online course is applicable to electrical engineers, design and construction personnel, technical staff and facility personnel who are interested in gaining a better understanding of inductive and capacitive reactance.

This online engineering PDH course introduces the basic concepts and fundamentals behind electricity. Have you ever wondered about all the material or matter around us? What is it? Is there any universal explanation for its appearance, properties, and behavior?

One theory that explained some of the properties of matter was the molecular theory of matter, which states that matter consists of small molecules in motion. This theory provides an explanation of many characteristics of matter, including how heat works and why materials change from solid to liquid to gas. This was followed by the atomic theory of matter, which states that matter consists of atoms made of protons, neutrons and electrons. Matter is closely associated with energy, and the electricity is a form of energy that comes from the movement of electrons among the atoms of the matter (conductor).

This 4 PDH online course is applicable to electrical engineers, design and construction personnel, technical staff and facility personnel who are interested in gaining a better understanding of matter, energy and electricity.