Electrical resistance

Every vehicle has a number of electrical instruments. Each one varies due to the certain make and model of the vehicle with the different variations on the particular vehicle. Take a truck for instant it has a speedometer, tachometer, and transmission temperature gauge. Due to the fact that it will be towing a heavy object and be putting stress on the motor, so it doesn’t get too hot the gauge is there to protect it. Now on a sport car your two main instruments will be the speedometer and the…

Nikola Tesla The inventor Nikola Tesla lived from July 10, 1856 to January 7, 1943, he was a well-known engineer who designed the alternating-current (AC) electric system. He was born in what is now Croatia; he came to the United States in 1884 and worked for Thomas Edison for a while before they both went their separate ways. Tesla sold several patent rights to George Westinghouse; one of those was his AC machinery. During Tesla’s career he discovered, designed and developed ideas for a number…

hence equation 3.9 reduces to 3.8. Furthermore, when the conductivity increases, the dielectric time constant decrease, thus the field distribution can reach the steady state condition rapidly. The three equations 3.2, 3.3 and 3.4 demonstrate the electrical behaviour of a weakly conductive of insulation material, while equation 3.9 which is the result of combining these three equations describe the accumulated space charge when the time derivation of current density is not zero and the ratio…

(T, Ψ), voltage vector sector selection, stator flux and torque estimators (Ψs, Te), induction motor, speed controller, and voltage source inverter (VSI). A.PULSE WIDTH MODULATION It is a commonly used technique for controlling power to inertial electrical devices, made practical by modern electronic power switches. The average value of voltage (and current) fed to the load is controlled by turning the switch between supply and load on and off at a fast pace. The longer the switch is on compared…

Frank Sprague’s electric trolley system became the first large-scale electric rail system in the world; in 1911, General Electric unveiled the first electric refrigerator. However, the rise of electricity was fraught with conflict over the type of electrical current. Starting in the 1870’s the fight over electric currents,…

into public networks. This integration served its purpose of reducing operating cost, but significantly increased the power grids exposure to cyber-attacks (Kuder et al., 2010). Recent discoveries that hackers have inserted software into the US electrical grid, allowing the grid to be disrupted at a later date from a remote location, clearly demonstrates the fact that the utility infrastructure is quite vulnerable and that its overall mission of serving the population could be severely…

ACKNOWLEDGEMENT It is my pleasure to thank all those who helped me and made my project work a success. I would like to thank my parents who made this research possible and for extending their moral support and patience. I like to thank the Principal of our Institution, Prof. Parvardhavardhani Gopalakrishnan as well as the Project coordinator, Prof. Y.G. Tharakan, for all the patience and guidance provided to me throughout the dissertation period. I take this opportunity in expressing the…

Harmonics: Harmonic distortions are injected at the generation as well as the consumer end. At the consumer end, harmonics are caused by nonlinear loads such as PCs, CFLs, electronic devices, etc. The harmonics distortion caused by non-linear load such as electric arc furnaces, large concentrations of arc discharge lamps, variable speed motors, saturation of magnetization of transformer and a distorted line current. The current generated by such loads will interact with power system impedance…

John Mauchly pioneered the field of computer science and built the foundation for all modern computing with the creation of the world 's first fully functional digital computer, the ENIAC. The ENIAC, completed in 1946 at the University of Pennsylvania, occupied 1800 square feet, weighed 30 tons, had 18000 vacuum tubes, and cost about $5,000,000 in modern dollars (ENIAC Definition from PC Magazine Encyclopedia). John Mauchly originally conceived the ENIAC as a tool for statistical weather…

just a matter of time when the world will wake up to news about great achievements enabling using alternative sources without any main restrictions. This moment will be very soon, and this sparks my motivations to be an effective and contributing electrical power engineer in this paradigm shift. This rapid increase of renewable sources integration necessarily leads to new power grids. In brief, my research concerns fundamental engineering and economic challenges facing our rapidly evolving…