hello friends..... any one have papers or any study materials?sail ,hpcl...?

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what is the function of commutator in dc motor?

3 Answers  

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What is the purpose of a process loop? What is the controllers responsibily?

1 Answers  

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in underground cables, we have a grading method called 'capacitance grading' why is it called 'capacotance grading' although we do not use any capacitor in it?

1 Answers  

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for preparation of design note of 11 / 220 kV , 3 phase, 63 MVA transformer how can calculate or consider the iron losses and copper losses

1 Answers  

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Witch do depand of Power factor and theory of power factor?

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WHAT MEANT BY SEVICE FOCTOR?

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1.how many earth pits are required for 1000 k.w plant include substion , transformer ? 2. how many earth pits are required for 500kva generator.what is formula to calcute?

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How to control speed of DC motor with AC power?

7 Answers   vguard,

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Hi, I'm running plastic reprocessing company where all motors are running only in delta. Due to that when I use start my 30 hp motor my transformer gets fuse. Where it happens two times a day. I gt a suggestion from a person about Automatic Power Factor Controller APFC. Is it useful for my problem??? Or is der any other way for solving this problem?? Upgrading the transformer is difficult. Pls give Me ur suggestion. Waiting for ur reply.

2 Answers   Shree Lingaa Polymer,

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What is the difference between a Distribution Transformer and a Power Transformer.

4 Answers  

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Why HT motors are connected in star.

7 Answers   GIL,

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