Answer / siva prasad

To avoid Voltage Fluctuations from main line we connect to
lighting transformer to have constant voltage for lighting..
if we connect directly light fittings may damage or it may
take long time for hid lamps to on.while it was off due to
voltage dip.

how much insulation resistance 11kv & 33kv under ground cable between earth to phase & phase to phase.

4 Answers   Siemens,

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Differentiate AC and Dc resistance

0 Answers  

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What are documents to be required for export of the material?

1 Answers   Siemens,

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What is meant by full pitched winding?

0 Answers  

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why we used to transmitt the power at higher voltage why not at lower voltage

8 Answers  

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what is principle in relay testing kit?

3 Answers  

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Generally transformers has delta primary and star secondary. But in some transformer i saw Star primary and delta secondary. what is the reason for chosing like this?

2 Answers  

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if sf6 gas low in gis what will happen

0 Answers  

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Which modulation has higher data rates a.fm b.am c.qam d.qpsk

1 Answers   NTDC,

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why the genearation of electricity always in form of sine wave only ??? why not cosine wave ???

1 Answers  

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When we are working on transformer(132\11KV). we are going to isolate the transformer from both HV side and LV side. then we are applying grounding on both side. My question is that we required to isolate the VT which is still connected from secondary side.?

1 Answers  

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technically, what is the reason behind starting the motor star the delta connection .. and what other ways to do this rather than using " star-delta transformer"

0 Answers   Wipro,

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