Answer / ashraf.k

Arc horn ,guard ring for arc protection overhead line

Answer / ashraf.k

Arcing horn, guard ring are used to protect from arc

i have a roll dia aprox.43 inches and gear box ratio is 14.3.so my question is how was decide the kw rating of motor.

1 Answers  

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Why 66KV is step down to 11KV and then 433v, not directly 66KV to 433v ?

2 Answers  

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why a diode bridge is provided in vcb control circuit ?

2 Answers  

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is EEE eligible for getting electrical supervisor certificate ? if yes then from which state i sud apply

1 Answers   ONGC,

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can we use inductor for passing or blocking of AC or DC?

3 Answers   Moser Baer, NTPC,

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what is neutral grounding? why is it required? what is neutral grounding resistor and how is its value calculated??

11 Answers   NTPC, ONGC,

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The SFC of an engine is 0.25 kg/kW hr. when the fuel used has a calorific value of 36000 kJ/kg. the thermal efficiency of the engine is

0 Answers   Caterpillar,

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How to choose size of the cable w.r.to current carrying capacity ...

0 Answers   L&T, Saams,

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why square root 2 is multiplied with line voltage in selection of LA ie 11/sqrtroot3=6.35 kv and it is multiplied with sqrt2 ie 6.35 KV*sqrt2=8.9 kv we will select 9kv.my question is why we are multiplying with sqrt 2?

1 Answers   KSPL,

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Draw a SLD of DG distribution up to main LT panel?

0 Answers   HSL, TATA,

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How maesure earth neutral value & how much maximum value value required in between earth & neutral.

0 Answers   Bellsonica, NEC,

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why we use primary delta connectin in hight voltage transformer

2 Answers  

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