Collection of rain water from paved or G.I. corrugated roofs and paved courts yards of houses, known as rainwater harvesting, is common in areas having high rainfall intensity well distributed in the years. Such areas include: Himalayan areas, north eastern states, Andaman and Nicobar Islands, Lakshadweep, Rajasthan and southern parts of Kerela and Tamil Nadu.

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Verdana] ....etc

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Introduction
Electromechanical device that converts electrical energy to mechanical energy
Mechanical energy used to e.g.
Rotate pump impeller, fan, blower
Drive compressors
Lift materials
DC Motors – Components
Field pole
North pole and south pole
Receive electricity to formmagnetic field
Armature
Cylinder between the poles
Electromagnet when current goes through it
Linked to drive shaft to drive the load
Commutator
Overturns current direction in armature
AC Motors – Synchronous motor[/ ....etc

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PRESENTED BY:
MANJUNATHA B.E


Abstract-
 As the cost of energy increases it is increasingly more important to remove inefficient motors from operation.
 It describes the results of a very-low-cost & accurate method for determining the motor efficiency without the need for removing the motor & without the need for measuring the output power or torque.
 Test results indicate that the novel method has an accuracy of over 99%.
INTRODUCTION-
Methods:
1.To place the motor on a test stand ....etc

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i want to disadvantages of written pole electric motors ....etc

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i want paryavarana parirakshna essay in telugu ....etc

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respected sir/madam,
i saurabh kumar pran is doing b.tech(final yr.) from bharath university.i want little description regarding to the projectHall Effect sensor based non-contact Tachometer for electrical motors speed measurement. i also want to know what are the component used in this project and what is its expected cost.i have already worked on many sensing device in our previous semester mini project.if you have possible please send me block diagram of this project. i m highly obliged if you can ....etc

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NTRODUCTION:

The predominant type of prime movers for DP propulsion plant is Electric Drive.


The most commonly used motor drives are:


DC converters, or SCR for DC motors.

Cyclo converters for AC motors ,normally for Synchronous motors .

Current Source Inverters (CSI) for Ac motors (Synchronous Motors )

Voltage Source Inverters ,(VSI)for AC motors ,i.e. asynchronous, ....etc

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I am preparing for competition in my school so please send me the rain water harvesting essay in tamil ....etc

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