While an effort has been made to avoid superfluous mathematics, equations are sometimes necessary to completely and effectively define a term. Magnetron atmospheric condition mac testing principles. When talking about electricity an entirely new list of terms are used to describe charac. The magnet can be a permanent magnet, an iron rotor in which a magnetic field is induced, or an electromagnet powered by an externally applied current. Understanding of electrical terms is compulsory for engineers. An electromechanical device that converts mechanical power into ac electrical power. It consists of conductors wires connected between the buildings electrical service panel circuit breakers and the electrical outlets power receptacles. If its slang terms youre looking for, then look no further. Mathematics beyond the highschool level has not been used. Glossary all terms and definitions listed alphabetically.
Power the rate at which electrical energy is transferred by an electric circuit. This is an electric current that reverses its direction many times a second at regular intervals. Either how much electricity an appliance will use, or a circuit fuse, mcb, cable, connectors etc can handle. Terms that are underlined and italicized are included in the glossary as a separate definition. One ampere is the amount of current flow provided when one volt of electrical pressure is applied against one ohm of resistance. Glossary of electrical engineering terms and definitions listed alphabetically. This course will cover general electrical laws, and work rules relating to.
Pictorial glossary the pictorial glossary includes definitions and illustrations for many terms that are frequently used in the electrical industry. The pictorial glossary includes definitions and illustrations for many terms that are frequently used in the electrical industry. Electrical first fix generally used to refer to that part of an electrical installation that is not visible on completion i. Electrical second fix generally used to refer to that part of an electrical installation that is visible on completion i. Leaded chip carrier, also called plcc or plastic leaded chip carrier. Quantity symbol decimal 1 millivolt 1 mv 1 volt 1 volt 1 v 1 volt 1 kilovolt 1 kv volts. However, a basic look at a few of these words and what they mean will. Such an imbalance is sometimes caused by current leakage through the body of a person who is grounded and accidentally touching the energized part of the circuit. Glossary all terms and definitions listed alphabetically maxim. Power factor the ratio of the actual electrical power dissipated by an ac circuit to the product of the r. Normally used in uk houses at 240v rms alternating at 50 times per second 50 hertz. Relay an electrical coil switch that uses a small current to control a much larger current.
Ampacity the maximum amount of electric current a conductor or device can carry before sustaining immediate or progressive deterioration. Infrared thermography for electrical distribution systems. Ac alternating current ac stands for alternating current. A square surface mount chip package in plastic with leads pins on all four sides. Below youll find over xx definitions of electrical terms. As you study electricity in your engineering program, and as you work with electricity in the power plants, industrial plants, you will hear, read, and use various electrical terms. Basic electrical terms and definitions electricalmag. A glossary of electrical terms become an electrician electricians are skilled tradespeople working in a variety of different residential and industrial settings. Alternating current ac the type of mains electricity used in the uk having a cyclical current waveform.
Rectifier an electrical device that converts an alternating current into a direct one by allowing a current to flow through it in one direction only. Also called a variable frequency drive and an inverter. An electrical wiring device that disconnects a circuit whenever it detects that the electric current is not balanced between the energized conductor and the return neutral conductor. Ac drive an electronic device used to control the speed of an ac motor.
A dictionary of electrical words, terms and phrases survivor library. Typically, a magnet spins inside a coil, inducing alternating current in the windings. Tlc recommends that you download and save this pdf document and. Appendix a contains the standard symbols used in electrical and electronic diagrams. Current will flow in a conductor as long as voltage, the electrical pressure, is applied to the conductor.
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