why we use copper earthing for neutral while for body GI.

1 Answers   Chennai Metro Rail Limited CMRL, Valeo Lighting Systems India Private Limited,

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Is it reuired to use house service barcket for 31/2 core 300 Sq.mm cable,if the distance between pole & shop is around 2 mtrs only or can I hang the cable with GI support in air? upto what size of cable GI serrvice btacket is necessary?

1 Answers   HAL,

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Is there any thumb rule for cable selection for any current rating ?

1 Answers  

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why characteristics of overcurrent relay is time-->psm instead of time-->current?

0 Answers   ABB,

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What is the role of feedback in a closed loop control system?

0 Answers   GE,

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The coils having selfinductancs 10mh and15mh,effective inductance 40mh when connected in series aiding. what will be the equivalent inductance if we connect them in series opposing?

1 Answers   BSNL,

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What is meant by soft starter used in motors?

4 Answers  

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Hi, i want to know is meant by power quality? How it can calculated ? How we can improve?

1 Answers  

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1 Kva = How many KW

3 Answers   Reliance,

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When measuring the Insulation resistance of a motor winding (winding to earth) using a megger meter, Applied voltage(1000V) was automatically reduced to 500V. and the measured insulation resistance values are also very low (in Kohm range) Can anyone give me a reason???

3 Answers  

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what is the difference between on line & off line UPS

3 Answers  

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what effect will 10 milliampere current cause to human body

1 Answers   NPCIL,

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