Answer / k.prakashchandra

22.5 is 4.5 % of 500

In alternator generally we give DC voltage to field of alternator but field (excitor)produce Ac & converts into DC by rotating rectifier(RR ) then fed to rotor .my question is why we cannot give dc voltage directly to rotor instead of Excitor & RR ?

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What is induction motor

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In protection core of a C.T. why Knee pont voltage is greater than SLV and in metering its viceversa?

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How to decide whether A / B / C / D curve type MCB should be used?

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Where all & Why resistance grounding is required?

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What are the main advantages of generalized error co-efficients?

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What are the advantages of nichols chart?

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Can anyone explain me the operating principle of the megger tester?( I just know that its diflection relates with the ratio of currents of control & diflecting coil. I need more information as breif as possible)

1 Answers   TCS,

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what are iron and copper losses

4 Answers  

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