Answer / joeredd

You need to know the full load motor current at the supply voltage you are going to be using. Your contactors/overload are rated on current. Their voltage rating needs to be higher than the supply voltage.  (I.e. 415vac supply, 600vac rating). Knowing the motor wattage (7.5Kw) on its own is not helpful. 

which fault is severe and why?between lll fault and lllg fault which fault is severe and y?

0 Answers   GE,

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how would you determin the horsepower of a motor without a nameplate

3 Answers  

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i need to calculate high voltage line power factor daily basics but there is meter reading kwh and kvah while calculating power factor kwh/kvah formula was right. for examble there is point c=13kwh c=1.8 lag c=1.2 lead and c=14.5kvah like that i know that p.f =kwh/kvah but c=1.8lag kvarh and c=1.2lead kvarh points i dont know if u know please reply

1 Answers  

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how to calculate the starting current of a motor? gopal

3 Answers   JIPT,

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what is the necessary of using inductance property in transmission lines even through resistance is used to opposes the high current flows in that?????

0 Answers  

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How can you limit the fault level in a power system?

1 Answers   Alfanar,

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what are advantage and disadvantage of hvdc transmission . please tell us technic of hvdc technology

2 Answers  

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what is spadar bar .why I use in DC generator.

0 Answers   BSL,

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Which do you think is the most significant cause of energy loss in a factory?

0 Answers  

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Find the octal equivalent for the binary number 101101110

1 Answers   Ecil,

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In domestic supply, when neutral touches earth the earth leakage trips. Does this mean that if the star (neutral) point of an alternator is earthed that power will flow to earth i.e. a direct short to earth?

1 Answers  

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where we use stardelta starter and dol starter

4 Answers   HCL,

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