Answer / mak

the secondrary ll produce a demagnetising flux which makes back mmf..so more current is drawn in primary side to neutralise it..

Answer / akash

all the time core losses same .but copper losses change due to ambient temp.on full load efficiency maximum.

they conducted technica for 1 hour..i also managed..they selected 5 boys and only one girl,myself got wait listed.whether they would call or not

2 Answers   MAHINDRA,

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short circuit test of transformer gives what?

9 Answers   NTPC,

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why capacitor offer reactance to alternating current?

1 Answers   Electrical,

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Insulater disk using formula for 33/66/135 line h t line

1 Answers   Hofincons, Kirloskar, KPTCL,

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an amazing situation was faced when an alive distribution panel with 415 volts and carrying almost 200Amps has become short and this metal cubical showing 220 volts against neutral and earth. to redress any confusion i checked the panel with help of single 200watts test lamp which also glowing with max.intensity b/w neutral & metal body of DB. amazing situation is that i hold the DB firmly more than once with necked foot means without insulated shoes but not received any electrical shock. whereas our all running gen sets neutral points also proper grounded and this short DB was completely earthed , this is beyond my understanding . any body explain how is it possible . our running gen set neutral also grounded firmly

1 Answers  

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Why we have use 3 & 1/2 core cable use for general electrical supply arrangement

1 Answers  

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Do any one know exacatly when the results for NHPC held on 8th march 09 for engineering trainees will be released ?. if so please post it, i'm eager to know it.

0 Answers   NHPC,

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What is the difference between UPS and SMPS?

7 Answers   Mukand, NightFox,

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How we can differniate the overhead lines feeded by hydro power stations & thermal power stations

1 Answers  

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What is the function of under voltage release ?

0 Answers  

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What is the LUX

2 Answers  

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WHAT SHOULD BE THE RATING OF generator required to run a pump motor of 45 Kw.

1 Answers   Jauss Polymers,

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