transmisssion type

0 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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what is method for testing CT

0 Answers   DCM,

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what is the reason of current flow in nutral although load is balanced (three phase equal current)

3 Answers  

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wht do u mean by load in circuit.wht dp u mean by inductive load

7 Answers   SGS,

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Different types of relay fault which phase sequence??

0 Answers  

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why the secondary winding of the transformer is not open circuited ?

5 Answers   Nepal Electricity Authority, Torrent Pharma,

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What are the different sign conventions used in electric circuits?

0 Answers  

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why breaker closing coil gets burnt if supply is continously provided to it.

1 Answers   TATA,

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what is S.D.F stands for ? (S.D.F unit 80 amp , TPN )

6 Answers  

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What type of bulb used in small size cross symbol boder and original flame type(Deepam)?

1 Answers  

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What is the Powar consumption of fan low speed to full speed? is it same ?

3 Answers  

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