Variable Voltage And Variable Frequency drives

Presented By:
P.NATARAJU S.E.V.S.RAGHU VARMA
3rd year E.E.E. 3rd year E.E.E.

Abstract:-
Our varying industrial needs demand more precise control of the outputs of our basic electrical prime movers i.e, THE MOTORS. Basically dc motors are easy to control compared to their ac counter parts, but they have their own limitations with increase in capacity. Conversely ac motors in particular squirrel cage induction motors are very economical but their spee ....etc

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need some ideas for implementing of vcr engine in two wheeler si engines ....etc

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ABSTRACT

The engines that are used now a days spot a constant compression ratio. It is economic for the compression ratio must decrease with the speed. But there is a practical difficulty for the engines to alter its compression ratio while in working. But there has been a break through, researchers have found out new ways by which the compression ratio can be altered. Thus comes a new breed of engines called the Variable Compression Ratio Engines. Volkswagen has come up with a production version too. In this type the h ....etc

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I want information about the vehicles which are using vva mechanism and about bench market and about project and how we approch to enchance engine Performance and Emission Requirement ....etc

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i need this pdf file can you please make it available for me. thanx ....etc

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Glaucoma is defined as multi factorial optic
neuropathy. Which is a potentially blinding disease
which affects 66.8 million people worldwide. Risk
assessment of the disease goes a long way in diagnosis
and management of the disease. The blood pressure of
eye is known as intra ocular pressure (IOP) and if it
increases to dangerous level, then affects the optic nerve
axon. Thus, increase in IOP has a significant risk factor
for developing glaucoma. This can result in decrease in
vision and leads to blindness. Glaucoma is similar to
int ....etc

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Sir
This is Vilaskumar, Send me the project report of the VERIABLE COMPRESSION RATIO ENGINE FABRICATION PERFORMANCE ANALYSIS. ....etc

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In internal combustion engines, variable valve timing (VVT) is the process of altering the timing of a valve lift event, and is often used to improve performance, fuel economy or emissions. It is increasingly being used in combination with variable valve lift systems. There are many ways in which this can be achieved, ranging from mechanical devices to electro-hydraulic and camless systems. Increasingly strict emissions regulations are causing many automotive manufacturers to use VVT systems. ....etc

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This will be very useful to me. I search it for a long time.. i'm doing project relating to this Ratio and analysis. i will be very glad if you can help me..

This will be very useful to me. I search it for a long time.. i'm doing project relating to this Ratio and analysis. i will be very glad if you can help me..
....etc

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