If single phase voltage level is 230V than why three phase voltage level is not 660V ?, but it is only 440V.

16 Answers   BSNL, DOS, EFS, HMT, L&T, TCS, ThyssenKrupp,

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What is the Designing & Selection Procedure for a DG/Transormer of rated capacity?

0 Answers   SCS,

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How can we find out earth leakage,(shock)in side the house?.. (with out ELCB)

3 Answers  

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How to determine the Power factor is Leading,Lagging & Unity ?.I don'thave any Meters.

3 Answers  

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What is the effect of leading power factor for power transformer & D.G?

7 Answers   Exide,

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What is the GNA & MNA in armature reaction of Dc Generator

2 Answers   Khetan,

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A 230V dc shunt wound motor has an armature resistance of 0,15Ω.When operating on no load at 650 rev/min the armature current is 6A . The motor takes a full load current of 85A. Calculate the full load speed if the field flux is (i) maintained constant (ii)reduced by 0,03

0 Answers  

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how to reduce the power consumption in office ?

6 Answers  

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During a temperature rise test of a bus duct, it is fed with 415 volts at 2000 amperes. Why dont we get an electric shock if we touch the bus bars?

7 Answers   ABB, SDBL,

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what to do with nuetral when Generators are running in parrellel

11 Answers   APTransco,

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My requirement is 1VA,50/5A Current Transformer for Metering .If I select 15VA , 50/5A CT.Is there any possibility of Technical Problem ?

6 Answers  

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respected sir, sir recentely i have applied for chennai and tiruvananthapur section enggineer and juniour engg in electrical dept. but still i donot get how i have to syart my preparation and also t the same time i donot know exactly what they r going to give in the examinations i mean which sections they r going to give i donot know exactly, can u prefer whichh books i have to follow and model papers or both boards

1 Answers  

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