Answer / neha

when an amount greater than the rated voltage and
current passing through the motor leading to increase
losses in the motor due to which it burns.

Answer / b soni

When the motor get mor Load Then its Capecty And If Ther is
a Single Phase In the three Phase Motor

Answer / manoj

When mototr takes more current then its rated capcity then
the insulation gets weeken of the winding & its results in
to flashover between two winding or winding to ground & it
gets burnt

Answer / kj

A motor will burn out because of the failure of the
insulation.
This can be because of heat from overload, high or low
voltage or not enough cooling. The insulation can also fail
because of moisture, age, dirt or salty environment.

Answer / tharan

over load, terminal losse connection,noise, flexibility amps variation that is y winding weak r gets burn..

what happen if we give 220 volts dc supply to d bulb r tube light?

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What does the term power factor shows?

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Can we use all 3 cores of a cable to connect DC motor + ve terminal and similarly one more cable for - ve terminal.

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Why using synchronising methed in DG's sets?

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how do you find making current and breaking current of the circuit breaker

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It is a three inch fan and i want it to rotate to other direction .I've tried cutting the wire and reconnecting them inverse like black to white and white to black ,but it won't start rotating when i plug it in that way.And then it works again when i rejoin the wire to the way it is. I don't know what causing the problem.Is there anyone familiar with these small mortor?Any suggestion would be appreciated.Thanks!! http://i296.photobucket.com/albums/mm163/sasukebloodwheel/110527-105859.jpg

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why one side of tubelight glows after switch off ?

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If the earth is a good conductor of electricity, why don't people get shocked every time they walking on earth?

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how to design step down 12 V, 1mA small transformer from 220 V AC? Because according to VI relation and power transfer it results bulky...

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last 5 year rrb allahabad junior engg electrial engg question paper

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