Why neutral has to switch on-off with phase in TN IT TT systems i.e neutral should be taken as fourth pole

1 Answers  

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every motors written in name plate IP 55 what is this?

2 Answers  

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WHERE IS THE LIGHTING ARRESTER SHOULD BE PLACED IN DISTRIBUTION LINES?

26 Answers   APTransco, BARC,

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when turbine trips generator will becomes induction motor or synchronous motor?

4 Answers   JSW,

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Why the dc voltage drop during starting of emergency lube oil pump? The Voltage drop from 135kv to 125 kv for one min. before re-establish to 135kv?

0 Answers  

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Explain the Term in CT Name Plate – Class: 5P10

6 Answers   Jindal, SRES,

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According to underground cables a) stress b/w sheath & conductor is high b) inrush of core & conductor

0 Answers   CDS, Engineers India Limited, TNQ,

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what is direct dischage of power transformer

1 Answers  

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What is the loss of transformer of 220kv/11kv, 63/80 MVA and 18.05% impedance

0 Answers  

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what is relay

8 Answers  

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howmany insolaters needed in 66kv line

9 Answers   Essar, L&T,

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documented proof that aluminium bus bars are better than aluminium cables

0 Answers  

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