In the case of petrochemical area AC drive & AC motor is used where the speed variation is required. Why they are not Using DC drive & DC motors in such areas?

1 Answers  

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in three phase circuit neutral failure what happend in homes

4 Answers  

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what is the terminal voltage of dc series generator running at rated speed at no load?

2 Answers  

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Is it possible to make a 5P10/ CT Ratio 50/1A Burden 5VA

0 Answers   Penspen,

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what is use of thermistor ?

2 Answers  

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Explain with example of functional requirements of protection relay in terms reliability, selectivity, sensitivity

0 Answers   NCC,

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onan full form

5 Answers  

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Why only 1 CVT in Y-phase is used for synchronization in 3 phase power system?

1 Answers   Reliance,

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what is counter poise conductors

0 Answers   IBM,

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What is the formula for calculating Transformer Losses & Efficiency. I want to compare the Transformer efficiency at different loading condition.

6 Answers   Rays Power Experts, Techser,

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Why NGR is required for 11Kv geneartor in power plant

2 Answers   AB Inc, ABB,

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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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