Answer / prashant

Neutral does not carry curret only in the cae of a balanced
load. However in the case of an unbalanced load ( 3
Phase ), neutarl definitely carries the unbalance current.
That is why we have 4 pole ELCBs - to ISOLATE THE CIRCUIT
IN CASE of fault in neutral

why the CT ratio secondary is always divided by 5 for eg( 75/5,80/5,50/5)

6 Answers  

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How to justify this statement ??? "Capacitors in series provide less capacitance but higher voltage breakdown rating for the combination"

0 Answers  

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63MVA,220KV/6.9KV Transformer LV side neutral is connected to Earth pit through NGR. Whether this earth pit required to connect with near by below grouding earth mat or it is to be kept separate?

0 Answers   GSECL, L&T,

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132/6.6𝚔𝚟 𝚝𝚛𝚊𝚗𝚜𝚏𝚘𝚛𝚖𝚎𝚛 𝚗𝚎𝚞𝚝𝚛𝚊𝚕 𝚑𝚊𝚜 𝚘𝚗𝚎 𝚎𝚊𝚛𝚝𝚑 𝚙𝚒𝚝 𝚍𝚎𝚍𝚒𝚌𝚊𝚝𝚎𝚍. 𝙸'𝚟𝚎 𝚊𝚗𝚘𝚝𝚑𝚎𝚛 𝚝𝚛𝚊𝚗𝚜𝚏𝚘𝚛𝚖𝚎𝚛 𝚘𝚏 6.6𝚔𝚟/415𝚟 𝚌𝚊𝚗 𝙸 𝚌𝚘𝚗𝚗𝚎𝚌𝚝 𝚗𝚎𝚞𝚝𝚛𝚊𝚕 𝚝𝚘 𝚜𝚊𝚖𝚎 𝚎𝚊𝚛𝚝𝚑 𝚙𝚒𝚝 𝚊𝚜 𝚘𝚏 13/6.𝚔𝚟 𝚝𝚛𝚊𝚗𝚜𝚏𝚘𝚛𝚖𝚎𝚛?? 𝙸𝚏 𝙽𝚘.. 𝚃𝚑𝚎𝚗 𝚠𝚑𝚢??

0 Answers  

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A synchronous motor is operating at a leading power factor .if the applied voltage is decreases ,(the excitation remains constant ) ,the motor current a)increases b) decreases c)remains same d) none of these

2 Answers  

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Why capacitor bank does not require in DG Set?

21 Answers   IBM,

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How to calculate the slip ring induction motor rotor current and voltage.

1 Answers   Bhel,

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Explain the laying procedure and laying depth of submarine/subsea power cable for 220/400KV system? Also available cable diameter?

0 Answers   ABB,

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What is the capacitance values of 132,220,400 & 765 kV current transformer

0 Answers  

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Why the substation measure in KV but not in the power ratings of transformer.

4 Answers  

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Explain dc generator with its types?

0 Answers  

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why use only sf6 circuit breker in 400 kv sub station

5 Answers   BARC,

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