in my working site. momentary jerck in electrical supply ocurred frequently which cause of multiple losses in our electrical equipements. how can we protect our electrical machines and equipements in this situation.

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

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what is maximum or Threshold value of current 7 voltage that a common man can withstand

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if the length, number of turns and area of coil are doubled then inductance of the coil becomes.?

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Define phase lag and phase lead?

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why we use star and delta connection?why we donot give the supply directly?

12 Answers   Hitech, Siemens, Tata Steel Limited,

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What is the difference b/w earthing & grounding?

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Is there a diode made that works with AC 120 volt 20 amp? If so can it completely stop all current flow in 1 direction at all times?

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Why 11KV PT Secondaries [(11000/1.732)/(110/1.732)/ (110 / 3)]are in star connection ? And why the same should not be in delta ?

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what is the ohmic value of transformers

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which generator is called as brushless excitation generator and why??

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How many types are using in 220kv/400 kv swith yard

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