Answer / k.prakashchandra

W -winter grade ( temp), 40 means SAE viscosity number

what are the materials used in HRC fuse

3 Answers   Bhel,

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CONTACTORS ARE MADE UP OF WHICH MATERIAL?

6 Answers   IOCL,

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What is the function of semicon in 33kv ht cable ?

4 Answers   Denson, Finolex,

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what is the difference between 230v and 115v?

1 Answers   Bhushan Power Steel,

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WHY TRANSFORMER RATING IS MENTIONED IN KVA RATHER THAN KW

5 Answers  

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what is voltage, and how it makes the electron to move?

6 Answers  

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what is meant by neutral compensation factor and where it is used

0 Answers  

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what is the d/f b/w dol & star delta starter.

2 Answers  

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What are the condition for parallel operation of transformers?

2 Answers   Alfanar,

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HOw can we calculate power factor at HT side.

6 Answers  

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Ferranti Effect says that voltage at the receiving end is higher than that at the sending end. How is it possible?

4 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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