Answer / lux

in tanks due to rotational movements of fluids the charges
gets accumulated on the surface of the tank.. it is
grounded at regular intervels in order to assure the
workman's safety..

Answer / will

Static electricity is produced by various phenomenons like
you find on the computer monitors, on tv screens.
All this is due to the movement of light packets hitting
the screen and accumulating the charge on the surface.

How to calculate earth fault current for 6.6 KV , 50 HZ , 756 Amps , 3000 RPM , 0.8 PF generator

0 Answers  

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(1)The demand for electricity , the amount of renewable generation available, the amount of fossil fuel generation available and the cost of the fossil fuel generation are shown in table below period(hrs) demand(MW) renewable (MW) fossil- fuel(MW) cost of fossil fuel(MW) 00.00 - 01.00 2000 1800 2000 30 01.00 - 02.00 2300 2500 2000 30 02.00 - 03.00 2500 2700 2100 45 03.00 - 04.00 2900 3100 2100 50 04.00 - 05.00 2700 2600 2500 45 05.00 - 06.00 2400 2000 2700 50 06.00 - 07.00 2200 1800 2000 36 07.00 - 08.00 2100 1600 2000 36 Assuming that the renewable generation incurs zero cost, determine an optimal generation schedule(specifying the amount of renewable generation and fossil fuel generation used in each period, the cost for each period and the overall cost for 8 hours.)

0 Answers  

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how will you find out the fuse failure by remote operation?

1 Answers  

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is dc shunt moter oprate on ac? if no why? if yes how?

8 Answers   IOCL, JJJ, Power Grid,

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in a induction motor if we put capacitor across it will the power factor of the motor will improve? if yes how

6 Answers   Reliance,

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Differentiate between voltage and current feedback in amplifiers?

0 Answers  

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We know that primary transmission is done to reduce current so that i^2*r loss could be minimised but according to ohm's law v is directly proportional to i,which indirectly means higher potential difference means larger current?so how the current is minimised in high power transmission line??

2 Answers  

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Why  we are always  only used 11 kv.  , 22 kv ,33kv      in transmission line? Why not use 25,  55 ,65 kv ?

3 Answers   Khidmah LLC, Precision Camshafts Limited,

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why the three phase transformer's star point does not sparks or seperated? while we often see that two phases touches each other it sparks and ocationaly conductor breakes out.

4 Answers  

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how hazordious area is classified at an oil & gas plant and categorise suitable class of electric equipment in that area like induction motors, LCS, Lighting Fixtures Fluerescent/Flood lights Mercury& sodium lights, J.Bs, Power Cables etc

0 Answers  

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How does one convert an AC motor into a generator?

6 Answers   Bhel, ZK,

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In a flange coupling, the flange bolts are designed for

0 Answers   Caterpillar,

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