Answer / nur.asidik

resonance mean when XC is equal to XL, 

can we use ps class in combination with protection class in differential protection and over current protection.

1 Answers  

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Which is remain unchanged in transformer action?

6 Answers   NTPC,

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what are the installation procedure of high voltage power transformer,CT,CB&PT?

0 Answers   Siemens,

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How do you know when the battery is fully charged?

6 Answers   ABB, Pricol,

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What is the differentional relay...what is the work of this in power Tx. how it is works..

0 Answers   ABB,

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sir, plz tell me how much kvar capacitor required for 1000 amp or 500 Kw load ? what is the formula ?

14 Answers   CSPL,

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I have carried out wiring for lighting in a shed in Industrial area which contains Metal halide lamps & have balanced in 3ph.Now when we put all the lines on in the daytime the current taken at 3phases at MCB comes to be equal i.e.28,29,28Amps respectively but in the night time i.e between 7p.m.to 11p.m. at the same MCb the current is 52,59,62Amp, though I have fit 63A MCB it is tripping in the above period.What may be the reason.? Note: This industry is located in industrial area where majority of steel ingot manufacturing plants are there. Whether this may be due to harmonic? what should I do to overcome above problem.pl suggest urgently.

4 Answers  

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what is the spdt

1 Answers  

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How much costly in percentage wise is sandwich busduct costly than air insulated busduct of any rating?

0 Answers  

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2 t/f operating in parallel will share the load according 2 their- a)leakage reactance,b)pu impedence,c)efficiency,d) rating.

1 Answers  

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In a generator (Synchronous) does the rotor speed (frequency) corresponds to the speed of the water (in hydro). does the torque on the turbine relate to the flow of water?

2 Answers  

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what is two wattmeter test

2 Answers   Jindal,

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