Answer / rabi

Both are same.
line-to-line fault occurs when any two phases get shorted.

Answer / thran

phase volt is 230 called single phase line volt 440 its called three phase!

WHY WE NEED AUTO TRANSFORMER,WHERE WE CAN USE?

5 Answers   L&T,

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The transformer which is smallest in size is and how to calculate that? The options are 100 KVA, 50 Hz 100 KVa, 100 Hz 100 KVA, 25 Hz 50KVA, 25 HZ

4 Answers   Ranbaxy, Zee Laboratories,

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what is the maximum current carrying capacity of a 95 sqmm cupper under ground cable laid partialy in land and partialy in ground?

4 Answers  

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What are the tests carried out on transformer while testing at sites?..Pls explain me in detail

2 Answers   Suzlon,

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1. If 8.35%Z means the percentage impedance of 132kV-line from power company, we will like to confirm its base capacity?

0 Answers  

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What are the different methods of improving power factor,especially in Wind Sector

2 Answers   Suzlon,

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As we know multiplicity factor derivation equation is as below MF = main c t ratio / main p t ratio * meter c t ratio / meter p t ratio * meter dial constant Where in digital meters for HT kwh import export now a days meter constant are calibrated already which is 1 So my question is For HT 11kv 110 v line values are as below Main c t and p t ratio are 11000 v and 110 v and 20/5 means 20 amp and 5 amp Now meter values are 11000/√3/110√3 and primary and secondary amp are displayed as -/5 amp on kwh meter so what will be the MF for this meter ?

1 Answers   NEPC,

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what is impedance in a transformer? how can i calculate it?

1 Answers  

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Is there any difference between circuit breakers and isolators

7 Answers  

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What is annunciator ?

1 Answers  

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Which power will flow first if we switch on a motor? Active or Reactive? How?

5 Answers   NPTC,

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Is it required to do earthing in 2nd shop if earthed armoured cable is laid from 1st shop ?

0 Answers  

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