why should be the frequency is 50 hz only why not others like 45, 95 56 or anything , why should we maintain the frequency constant if so why it is only 50

3 Answers  

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Why we used 690V in ACS 800 drives.Why dont use standard voltage like 415v or 1.1Kv

0 Answers   India Cements,

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In DC motor,the field MMF is given by NI.N-no.of field winding turns,I-excitation and both are constant.Then how could the main flux decreases due to armature reaction.

4 Answers   Bhel, IBM,

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A cylindrical wire is compressed in length by 10%. The percentage decrease in the resistance will be?????

8 Answers  

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WHAT IS THE TECHNICAL SPECIFICATION OF C CURVE & D CURVE LEGRAND MAKE MCB

0 Answers  

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How to calculate earth wire load by formula

0 Answers   Caparo,

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How to check phase R,Y,B

3 Answers  

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how MW increase when steam input increase in turbine.

1 Answers  

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What do you mean by 4.44 in this transformer equetion E=4.44 nfqm

4 Answers   Bharat Bijlee,

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line diagram for mcb , mccb , rccb .

1 Answers  

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which loses are in transformer .explane each loses

4 Answers  

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What do you mean by transformation ratio of instrument transformer?

0 Answers  

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