Answer / krushna ch sahoo

its not safe bcoz the instalation of the
motor & the rotor is made for 1500 rpm
speed

Answer / anil

yes absolutly safe. No problem if you use VVVF drive for
this motor.

How is a 100 MVA transformer cooled?

9 Answers  

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The efficiency of a 100kva transformer is 0.98 at full load as well as half load , for this transformer what is the Copper loss at full load ?

0 Answers  

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what is size of 3phase 4wire cable to be used for 11 ton ductable A.C and how to calculate cable size for different load

0 Answers   Tata Power,

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we have 1000 litre water tank,it located at 25m hight from ground level,the water level on 10m below from ground level.for fill the tank within 1 hour,how much of motor rating(HP) want to select?

0 Answers  

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What are the advantages and disadvantages of the ac motors?

0 Answers  

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New istallation how many eathing have one transformer? Names of earthing connect places?

10 Answers  

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current transformer cannot measure voltage or not ? then y we use P.T ?

1 Answers   Bhel,

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what is mcb

7 Answers   L&T,

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why in dc generator field rheostate kept in maximum position?

1 Answers  

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Pls explain about vfd control?Where it is used, Give some example?

3 Answers   Siemens,

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Is an SCR semi controlled device?

4 Answers   IOCL,

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7. Why AC motors, AC bulbs etc... are donot operated by DC signals? and Why DC motors, DC bulbs etc... are donot operated by AC signals?

2 Answers   Bhel,

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