Chapter 1 The History of Electric Transformer INTRODUCTION: Transformer is a device that transfers electric energy from one circuit to another‚ usually with a change in voltage. Transformers work only with a varying electric current‚ such as alternating current (AC). Transformers are important in the distribution of electric power. They raise the voltage of the electricity generated at a power plant to the high levels needed to transmit the electricity efficiently. Other transformers
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Our Electric Bicycle Project I have added an electric power assist onto a GT mountain bike. With a 3 HP peak motor‚ it is much more powerful than typical electric bicycles. The basic motivation to build an electric bike was to have a fun and efficient and environmentally friendly way to stay out my car for short trips around town‚ and also as a silent trail bike for exploring the hills. I wanted to get some exercise - this bike can still be pedaled. When I first put this together it was even more
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Hydro Turbine Design in a VR Environment E. Goede 1) ‚ A. Kaps 1)‚ A. Ruprecht 1)‚ U. Woessner2) 1) 2) Institute for Fluid Mechanics and Hydraulic Machinery (IHS)‚ University of Stuttgart Computing Center (RUS)‚ University of Stuttgart Introduction Usually hydraulic turbines have to be designed individually according to the local operating conditions of power station such as discharge‚ head and given geometrical situations. This requires a tailor-made design mainly for the turbine runners
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The Advantages and Disadvantages of Electric Cars Introduction to Electric Cars An electric car is a vehicle which is driven by electric engines. The engines use electrical energy which is usually stored in batteries. Electric car is a variation of electric vehicle (EV). EV speaks of any vehicles which are propelled by electric engines. “Electric car” is a general term for high-speed vehicles which are powered by electricity. In the United States‚ low-speed vehicles which are powered by electricity
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Figure (2-3): Schematic Diagram of a Micro-Turbine Advantages: •Micro turbine unit costs around $1500 to $2500 per installed kW. That could lead to niche applications in areas with high-energy costs for power quality‚ peak shaving or replacement energy. They can run on a variety of fuels‚ including natural gas‚ propane‚ and fuel oil. • The other advantages over other types of DG technologies are a small number of moving parts‚ compact size‚ lightweight‚ good efficiencies in co-generation‚ low
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International Journal of Computer and Electrical Engineering‚ Vol. 2‚ No. 1‚ February‚ 2010 1793-8163 Doubly-Fed Induction Generator for Variable Speed Wind Energy Conversion SystemsModeling & Simulation B.Chitti Babu ‚ K.B.Mohanty Abstract— The aim of this paper is to present the complete modeling and simulation of wind turbine driven doubly-fed induction generator which feeds ac power to the utility grid. For that‚ two pulse width modulated voltage source converters are connected back to back
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INTRODUCTION In hydroelectric power plant‚ turbine been used to generate power from reservoir of water. Turbine been selected by their characteristic curves based on the potential energy available in the water and the amount of power to be generated. Turbine is a type that develops torque by reacting to the pressure or weight of a fluid. The operation of reaction turbine can be describes by the Newton’s third law of motion that is for every action‚ there is an equal and opposite reaction. In this
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1. Motors use the effect of forces on current-carrying conductors in magnetic fields Discuss the effect on the magnitude of the force on a current-carrying conductor of variations in: The strength of the magnetic field in which it is located • The magnitude of the force is proportional to the magnetic field strength. Thus‚ an increase in magnetic field strength will cause an increase in the force on the wire and a decrease in magnetic field strength will cause a decrease in force on the
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VAN DE GRAAFF GENERATOR This is a machine that can build up high voltages of the order of a few million volts. The resulting large electric fields are used to accelerate charged particles (electrons‚ protons‚ ions) to high energies needed for experiments to probe the small scale structure of matter. Principle 1. Skin effect 2. Electrostatic induction 3. Action of points Construction A hollow metallic sphere A is mounted on insulating pillars as shown‚ and a pulley B is mounted at the centre
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whether to do it alone or through a joint venture‚ and how to structure employee compensation. It looks like Gillespie conducted enough corporate anthropology research to identify viable consumer product needs that Lincoln Electric will be able to provide (stick consumables vs. automatic consumables segments). I understand that investing in Indonesia offers many benefits to the organization‚ mostly towards increased profit margins and market share of consumable products (for further information
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