how to set relay setting? and example calculation...

0 Answers   JSW,

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1)Explain why the cradle guard is used on railway crossing in overhead line construction?

0 Answers  

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Why capacitor bank is not neccessery to switch on,pls answ me with formula

2 Answers  

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My question is whether bellow formula is correct to find bus size for 46kA for 0.5 second & what is RT in bellow formula. formula to calculate the size of busbar to withstand the thermal stresses due to currents with duration of 0.2 sec to 5 sec. Sp = RT( I x I x t) / K Where Sp – is the cross sectional area of bus bar in millimeters. I -    is the value of AC fault current. t -    is the operating time of disconnecting device in seconds. K –  is the factor depending on the material of the conductor, insulation and initial and final temperature. Value of ‘k’ for copper is 143.

0 Answers   Premier,

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how electrical earthing maintenance done in industry?

0 Answers   L&T,

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if generator is running in iso mode parrallel with grid and suddenly grid breaker off what will happen?

6 Answers   century,

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why a pilot exciter is used in combination with the main exciter? why not only a main exciter is used for excitation to an alternator?

1 Answers   Electrical,

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Why don't we use ground free electricity to avoid electric shock.As birds are do not get shock.

3 Answers  

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What is load shedding?

1 Answers  

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what is the difference between analog and digital signal?

3 Answers  

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what is pf. how to calculate capacitor bank value to maintain unity pf.

18 Answers   JH, Saint Gobain, Supreme Treves,

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In a flange coupling, the flange bolts are designed for

0 Answers   Caterpillar,

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