1997 Siemens Electric Motor Works (A) (Abridged) Ten years ago our electric motor business was in real trouble. Low labor rates allowed the Eastern Bloc countries to sell standard motors at prices we were unable to match. We had become the high cost producer in the industry. Consequently‚ we decided to change our strategy and become a specialty motor producer. Once we adopted our new strategy‚ we discovered that while our existing cost system was adequate for costing standard motors‚ it gave us inaccurate
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between the transmitter and car. This article focuses on the radio-controlled vehicle category‚ both toy and hobby grades.Cars are powered by various sources. Electric cars are powered by small but powerful electric motors and rechargeable nickel-cadmium‚ nickel metal hydride‚ or lithium polymer cells. There are also brushed or brushless electric motors. Most fuel-powered models use glow plug engines‚ small internal combustion engines fueled by a special mixture of nitromethane‚ methanol‚ and oil (in most
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A direct current (DC) motor is a fairly simple electric motor that uses electricity and amagnetic field to produce torque‚ which turns the motor. At its most simple‚ a DC motorrequires two magnets of opposite polarity and an electric coil‚ which acts as an electromagnet. The repellent and attractive electromagnetic forces of the magnets provide the torque that causes the DC motor to turn. If you’ve ever played with magnets‚ you know that they are polarized‚ with a positive and a negative side. The
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Algebraic and Graphical Methods This paper proposes an algebraic and a graphical method for finding all the performance extreme values of a three-phase induction machine when it operates as a motor or a generator. The performance extreme include maximum efficiency‚ maximum power factor‚ maximum electric power‚ maximum torque and maximum mechanical power in both motoring and generating modes. In addition to the algebraic method‚ this paper shows how an old graphical method can be used to accurately
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Tata motors: In this assignment I am doing the swot analysis of TATA Motors. Strength: Brand Name: TATA was established in 1945. Tata Motors is India’s largest automobiles company with approximately 70000 permanenet employees and it gain a revenue US Dollar 38.6 Billon at the in 2013-2014(www.tatamotors.com). Tata bought land roverand jaguar from ford group in 2008 but they didn’t change the name of the brand because jaguar and landrover are established brand in world market. motors is world’s
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International Operations North America GM World Headquarters in Detroit In North America‚ GM products focus primarily on its four core divisions – Chevrolet‚ Cadillac‚ Buick‚ and GMC. The White House characterized the GM restructuring as a shift toward a new leaner‚ greener GM‚ which will aim to break even with annual sales much lower than previously stated. President Obama declared that the restructuring "will mark the end of an old GM‚ and the beginning of a new GM; a new GM that can
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1 HSC PHYSICS > MOTORS AND GENERATORS| AC & DC Gather secondary information to discuss the advantages and disadvantages of AC and DC generators and relate these to their use. AC generators Advantages The slip rings of an AC generator have a continuous surface that allows the brushes to remain in contact with the ring’s surface. Thus the brushes in an AC generator do not wear out as fast as in a DC generator as they do not create an electric short circuit every half-turn. Therefore
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ELECTRIC POWER UTILISATION AND ENERGY AUDITING UNIT – I ILLUMINATION‚ HEATING AND WELDING Nature-of radiation –definition – laws photometry – polar curves – lighting calculationsdesign of illumination systems (for residential‚ industrial‚ commercial and street lightings) - types of lamps-energy efficiency lamps. Methods of heating requirement of heating material-design of heating element-furnaces – Welding generator-welding transformer and its characteristics UNIT - II ELECTRIC TRACTION
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while the vehicle is stopping. This technology is used on hybrid vehicles that use both gas and electricity as sources of power. The energy that is recouped during braking is saved in a storage battery and used later to power the motor whenever the vehicle is using its electric power source. Conventional Braking Systems In braking systems on conventional vehicles‚ friction is used to counteract the forward momentum of a moving vehicle. As the brake pads rub against the wheels or a disc that is connected
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Topic: Evolution of a fortune 500 company & link the concept covered in theme 1 & 2 with the management evolution of the selected company Fortune 500 Rank 15 - General Motors “A car for every purse and purpose" – Alfred P Sloan Jr‚ Former President & CEO General Motors. General Motors‚ one of the world’s largest automakers‚ traces its roots back to 1908. With its global headquarters in Detroit‚ GM employs 205‚000 people in every major region of the world and does business in some 157
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