how can we change the supply voltage?

4 Answers   Areva,

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Why and when NGR panel required. Is it necessary to design a NGR panel for a 6.6kV Alternator paralleling with Grid????

0 Answers  

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how to calculate the settings for shaft ct protn in hydro generators

0 Answers  

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how LVDT works?

2 Answers  

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In an alternator running with a balanced zero p.f. lagging load, phase differernc between the resultant armature flux and main field flux is always____? options is 180 degree....why?? explain.

1 Answers   BREB,

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What is double throw isolator and single throw Isolator.

1 Answers   KSEB, L&T, Siemens,

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Explain about retrofitting of machine tool.

0 Answers  

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PLZ EXPLIN ABOUT CLASS PS CLASS CT .WHY THEY R DESINED AND FOR WHAT PURPOSE?WHY OTHER CT CANT BE USED AS PS CLASS CT? EXPLAIN IN SIMPLE LAUNGAGE IF POSSIBLE PLZ GIVE CIRCIT DIAGRAM?EMAIL-RAJ_SINGH_0376@SIFY.COM

0 Answers   ABB,

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Dear sir, my knowledge about cable size determination is limited. Though I read examples I could not calculate the Cable size required for electric driven pump 40 KW, 380 Volt, 50 HZ, 50 meter from transformer and it is three phase star delta starting. Please help as there is no one in my surroundings to help.

0 Answers  

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whats relation b/w motor current & friqency

1 Answers  

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in delta connection, why motor rotate in high speed compared to star connection?

2 Answers  

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why is used for starters for staring motors?

6 Answers   Amrapali, L&T,

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