Answer / srinathsam

yes.why b/c the loads like induction motors which are mainly
used industries,and also sycronous motors speed mainly depends
on frequency.

Why dry type cast resin transformers tap link blast in HV side while power shut down times on load?

0 Answers  

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Where the ON LOAD TAP CHANGER is provided in the setp up transformer?

2 Answers  

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WHY IS CT SECONDARY SHORTED TOWRDS TH EQUIPMENT TO BE PROTECTED

1 Answers  

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How can we decide the fualt levels of sub-stations?

2 Answers   Bhel, Enercon, Prakash Industries,

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Draw the vector diagram and condition for the following: 1) Dyn1 2) Ynd0 3) YnYn0

0 Answers  

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why we choose 50 or 60 hertz not other value for the power system?

4 Answers  

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What is the role and reponsibilities of Electrical Engineers in construction field?

12 Answers   ETA, Garg Electronics, L&T,

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Why is DC use instead of AC for protection and control circuits?

4 Answers  

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Why the transformers making noise?

2 Answers   L&T,

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can you any one give exact mathematical relation between AC current and DC current?

0 Answers  

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For overhead protection we use which transformer?

0 Answers  

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We have 800KW motor operating at 6600Volt,50 Hz supply.During 1st startup it tripped on overcurrent trip.It's FLA is 88 Amps.The K factor of Thermal overloaaad was set on .94 initially.then we set at 0.97 and then it started fine.i dont understand why it tripped first?What are the protections which comes in picture during starting ?

6 Answers  

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