Normally used in uk houses at 240v rms alternating at 50 times per second 50 hertz. Ac alternating current an electric current that reverses its direction many times a second at regular intervals. Sharif university of technology electrical engineering. Seventh edition modern dictionary of electronics free. These symbols are used in illustrations throughout this dictionary. A dictionary of electrical words, terms and phrases survivor library. Understanding electricity requires knowledge of these basic electrical terms.
Also called a variable frequency drive and an inverter. Cycle the change in an alternating electrical sine wave from zero to a positive peak to zero to a negative peak and back to zero. Pdf this book contains information obtained from authentic and highly regarded. Alternating current ac the type of mains electricity used in the uk having a cyclical current waveform. Alternating current ac a flow of electrons which reverses its. Ac drive an electronic device used to control the speed of an ac motor. Glossary of electrical engineering terms and their definitions. An electrical circuit that produces an output that is a replica of the input. Glossary all terms and definitions listed alphabetically. Ammeter an instrument for measuring the flow of electrical current in amperes. It is also often used generically and interchangeably with the term microwave to distinguish the high frequency ac portion of a circuit or signal from the dc bias. Alternator a device which converts mechanical energy into electrical energy. A dictionary of electrical words, terms and phrases, edwin j houston a dictionary of electrical words, terms and phrases, edwin j houston many of the earliest books, particularly those dating back to the 1900s and before, are now extremely scarce.
Ammeters are always connected in series with the circuit to be tested. Glossary dictionary of electronics terms a a abbreviation for ampere a unit of electrical current. Glossary dictionary of electronics terms hobby projects. A dictionary of electrical words, terms and phrases by edwin j. Dictionary technical english mechatronics robotics. Ieee standard glossary of software engineering terminology. Electrical terms you need to know as an electrician.
Ieee standard glossary of software engineering terminology ieee std 61 0. Glossary of electrical engineering terms maxim ee glossary. Current flow the flow or movement of electrons from atom to atom in a conductor. The abbreviations ac and dc are often used to mean simply alternating and direct, as when they modify current or voltage. Pdf comprehensive dictionary of electrical engineering. A dictionary of electrical words, terms and phrases. Appendix a contains the standard symbols used in electrical and electronic diagrams. The base means that the network uses baseband com munication rather than broadband communi cations, and the 2 stands for the maximum length of cable segment, 185 meters almost 200.
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