INSTRUCTIONAL MANUAL IN ALTERNATING CURRENT CIRCUITS An Instructional Manual Presented to the Faculty of the Graduate School Western Institute of Technology La Paz‚ Iloilo City In partial fulfillment of the Requirements for the Course EGC 600 – RESEARCH by Engr. boysie t. tejada March 2012 INSTRUCTIONAL MANUAL IN ALTERNATING CURRENT CIRCUITS An Instructional Manual Presented to the Faculty of the Graduate School Western Institute of Technology La Paz
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The War of the Currents was a battle between Thomas Edison‚ Nikola Tesla and George Westinghouse. Thomas Edison was a famous inventor who invented motion pictures and practical electric light bulb‚ as well as a good businessman. Nikola Tesla was a famous inventor‚ electrical and mechanical engineer. George Westinghouse was a famous entrepreneur and engineer who invented the railway air brake and was a pioneer of the electrical industry They were trying to decide which electricity system‚ either direct
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mechanical and electrical engineering. Moreover‚ as a physicist‚ inventor‚ and futurist‚ Tesla designed the contemporary alternating current system used in electrical systems. Notably‚ as an eccentric genius‚ the innovations
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known as the “War of Currents” started between the two in the late 1800s over whose current system was superior. Edison developed direct current‚ which is a current that runs continually in a single direction‚ like in a battery or a fuel cell. Tesla thought this current had problems and that he could improve upon it. Tesla’s solution was his invention of the alternating current. By Edison not wanting to loose his royalties‚ he spread misinformation about Tesla’s AC current. This in turned caused
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frequencies 2. Zero regulation (constant DC output voltage) for a wide range of AC line voltages and over the entire range of load currents that are required by the powered circuitry. 3. Zero power dissipation. 4. Instantaneous recover from changes in line voltage and load current. 5. Overload protection so that normal operation is automatically restored when the excessive current demand is removed. Power line disturbances and Sources of Power line Disturbance. Blackout - Sustained lack of AC line
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Westinghouse Electric Company had quickly become an Edison competitor. Edison‚ not wanting to lose the royalties he was earning from his direct current patents‚ began a campaign to discredit alternating current. He spread misinformation saying that alternating current was more dangerous‚ even going so far as to publicly electrocute stray animals using alternating current to prove his point. “If he had a needle to find in a haystack he would not stop to reason where it was most likely to be‚ but would proceed
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HAMZA BIN TARIQ EE-123086 Section PHY 7 Submitted To Ma’am Javeriah Iftikhar Abbasi Physics lab project Introduction: In this project we have created a device which takes input of 220 volts of ALTERNATING SOURCE and it gives us out put of 5 volts of DIRECT CURRENT for this purpose we have used various electronic components as mentioned below and made its circuit on PCB we have learned the concept of RECTIFICATION in this project. Components used: Following are the components
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25017 1 March 2013 Tesla vs. Edison Everyone knows who Thomas Edison is‚ and many attribute the “invention of electricity” to Edison‚ but this is simply not accurate. The truth is‚ while Thomas Edison did patent and market DC‚ or direct current‚ electricity‚ he did not “invent” electricity‚ and as a matter of fact‚ much of his work was actually basically stolen from other scientists‚ among them‚ one brilliant scientist‚ Nikola Tesla. We are all taught about Edison in school‚ but never once
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Engr. C.D. Sanchez Instructor II. Theoretical Discussion Alternating currents and voltages Figure 1 shows the plot of alternating voltage and alternating current as a function of time in a circuit that has only a resistor and a source of alternating current — an ac generator. | | | | | | Figure 1 | Current and voltage from an ac source through a simple resistor. | | | Because the voltage and current reach their maximum values at the same time‚ they are in phase
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System The following are recognized as standard systems of distribution. Distribution systems differing from these will be specially considered. • Two-wire direct current • Three-wire direct current • Two-wire single-phase alternating current • Three-wire three-phase alternating current • Four-wire three-phase alternating current * Three-wire single-phase AC may be used in conjunction with this system for lighting. Voltage and Frequency Variations (2008) Electrical appliances supplied
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