Answer / dr rajan

There is no formula. It is always a thumb rule. The dielectric
break down of air is about 6kv/cm of gap. So depending on the
terminal voltage, use a rational distance keeping in mind the
connecting terminal dimensions of the cable. An average of 15
cm space between phases in 11Kv accepted as a practice.

Earth Resistivity

2 Answers  

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what is diode? and what it is used for ?

3 Answers  

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Give two basic sprrd control scheme of DC shunt motor.

2 Answers  

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what is meant by lagging & leading current

1 Answers   TATA,

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When i went to a interview the interviewer ask me a question for that i cant able to answer him if anyone knows answer me How will you design a capacitor bank for a plant? if my p.f is 0.6 i have to improve it to 0.9 or 1 what kind of steps i have to do? and is there any formula for calculating this?

6 Answers   APNPDCL,

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what is mean by xlpe swa pvc

5 Answers  

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Can any one explain me about 2 phase motors ?

2 Answers   L&T,

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I completed my BE EEE degree 2006 .... which license should i apply .... ?????

0 Answers   Real Estate,

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can I connect 25KvA stepdown transformer(RYB-440V,UVW-240V) to the output of 15KvA,3-phase online UPS(440V phase to phase)please brief.

1 Answers  

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what do u mean by knee point voltage?

7 Answers   TATA,

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why do the core of transformer saturates???

1 Answers  

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I am designing new project sub station with 220 kV / 11 kV, 40 MVA capacity. This project have many recifier sets, which can generate 3rd harmonics. Now I have to select vector group of This transformer. To minimise 3rd harmonics, what care should I take in selection of Transformer Vecrtor group? If it is Y-Y with open Delta tertiary then what should be the rating & voltage of Tertiary Winding?

0 Answers  

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