Answer / sujit

in case of copper conductor cablesize in mm is equal to onefourth of fulload current and in case of aluminium it is equal to flc.current rating can be calculated from power rating,input voltage along with powerfactor.

MCB MCCB ACB VCB

1 Answers  

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why DG,Transformer,UPS capacity will be tell in KVA but not in KW?

4 Answers   Godrej,

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How do I calculate/select Droop CT ratio for various capacity of generators?

0 Answers  

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No load test of induction motor is carried out to compute= A stator resistance B rotor resistance C magnetizing reactance D rotor reactance

1 Answers  

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why we are used D.c. voltage in L.T.side or controling side.we can use UPS also ,in place d.c. voltage

5 Answers   ABB,

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I don't understand why when we connect high voltage source in DC to electronic motor , we must add capacitor and resistor in parallel ? (I know that we use capacitor because we want to absorb the current that in the first second electronic motor in opposed with current course produce. ) what are the feature of Resistor and in such situation ?

0 Answers  

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As we know multiplicity factor derivation equation is as below MF = main c t ratio / main p t ratio * meter c t ratio / meter p t ratio * meter dial constant Where in digital meters for HT kwh import export now a days meter constant are calibrated already which is 1 So my question is For HT 11kv 110 v line values are as below Main c t and p t ratio are 11000 v and 110 v and 20/5 means 20 amp and 5 amp Now meter values are 11000/√3/110√3 and primary and secondary amp are displayed as -/5 amp on kwh meter so what will be the MF for this meter ?

1 Answers   NEPC,

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what is the value of voltage & current lightning during rainy season.

0 Answers  

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I AM FROM ELECTRICAL ENGINEERING ? I AM ASPIRING FOR "BHEL".HOW I HAVE TO PREPARE .ON WHICH TOPICS TO BE CONCENTRATE MORE.PLEASE GIVE FULL DETAILS OF WRITTEN EXAM.

0 Answers   Bhel,

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How can I calculate the Mega watts required to run a plant having many electric motors and other electrical components.

0 Answers   ISS,

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What are the earthing required for commissionthe DG Set?

2 Answers   HSL,

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why are maintine power factor 0.99 in Eb line? why are used capacitor bank in Eb line? what is the purpose capacitor bank?

4 Answers   TNEB Tamil Nadu Electricity Board,

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