How to calculate current carrying capacity of copper conductor _ such as cable size 25sq mm,50 sq mm, 75 sq mm, 100 sq mm

2 Answers  

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dear all, i want to ask that what is diversity factor. please explain breifly. because i hve quiet no concept about this.

2 Answers  

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What does “battery of 180 AMP HOUR” mean to you?

2 Answers  

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1.In two wattmeter method if one wattmeter shows Negative reading then wat is reason? 2.Wat is the reason for low voltage in houses? 3.Wat is meant by current and voltage? wat is difference between the two?

10 Answers   Engineering,

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It is desired to flood light the front of a building 42 meters wide and 16 meters hig.Projectors of 30 degree beam spread and 1000 watt lamps giving 20 lumen/watt are availabl.If the desired level of illumination is 75 lumen/m and show a suitable scheme.Assume the cofficient of utilization, deprecitation factor and waste light factor are 0.4, 13 and 1.2 respectively.

0 Answers  

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in electric lamp what is ballast. y its needed to start & stop lamp. what is ballast ckt.

0 Answers  

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Why 4 pole generator generates more power and 6 pole generates less power campare to 4 pole

2 Answers   Julius Berger, Suzlon,

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How to calculate the copper in HT motors if KW, RPM & Voltage is given

0 Answers   Control Dynamics, NTPC,

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why scott connection is done why not two phases are directly picked at the output of 3 phase transformer??

1 Answers  

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suppose if oil in transformer is not used than what constructional change you will do,for insulation and cooling?

2 Answers   ABB,

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what is the maximum Load capasity in LV-Panel,MDB,SMDB & Final DB'S in Electrical disribution system?

2 Answers   Sterling,

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What is bode plot?

0 Answers  

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