Why back emf used for a dc motor? Highlight its significance.

0 Answers  

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suri transmission

0 Answers   Bhel,

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how to calculate power consumption in slip ring motor at different step

0 Answers   ABB,

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In my 3 phase 4 wire electrical system N to earth voltage is 0.08 is it ok What is standard for it ?

1 Answers   Kay Bee,

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how much kn lightning arrestor is used in 11kv line

8 Answers   Power Grid,

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I need model question papers for RRB section engineer Chennai... Please send to my E-mail Id:- maitheerainbow@gmail.com

0 Answers   NTPC,

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how power trnafor from 1 point to another point in bus bar ya transmission line( voltage trnasfer from 1 point to another poin)

0 Answers   Suzlon,

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why no load voltage is greater than full load voltage?

1 Answers  

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What is the criteria for deciding whther fire wall is required between two power transformers

1 Answers  

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what is the multi strand cable size? 0.45mm is area of one strand & 370nos of strand.

1 Answers  

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If we give 2334 A, 540V on Primary side of 1.125 MVA step up transformer, then what will be the Secondary Current, If Secondary Voltage=11 KV?

3 Answers   L&T,

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As we use capacitior bank in 3ph ckt for improvement of PF, why not we use capacitor in single phase domestric use, at our house their are many inductive equipments,like fan,mixer,tube choke,air conditioner they also draw PF... by using capacitor can they improve PF. if yes--what are advantage and how to connect a capactor in single ph,and which type of capacitor if no- what are disadvantages.

0 Answers  

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