Answer / ram

lighting transformer is used in system as energy efficiency
measure.
the secondary is provided with various taps lowering the
primary voltage. e.g. 430/420, 415, 410, 405.

Answer / guest

lighting transformer is used to limit the short circuit
current of the bus by varying the transformer impedance.

If we need 4c× 50mm sq cable but it's not available so we can pull 4c×25mm sq two cables?

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I am apply the AAI. So i want electrical sample question paper in technical with answer my id is vijayjobsmart@gmail.com

0 Answers   AAI Airports Authority Of India,

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Why current transformer is earthed??

2 Answers  

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Radio Carbon dating is used in a) find diseases b) find the age of relics c) find the carbon content in the atmosphere d) none of these

2 Answers  

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while doing the excitation current test on power transformer what is the value of voltage to be applied? Nomonal rated voltage or 10% of rated voltage? Is it necessary to apply on high voltage side?

1 Answers   ACC,

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please I wont know how to calculate the vector group for power transformer ZNyn11 best regard.

0 Answers   Al Rasikh,

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What is different type of Electrical curve and how it protects the equipment's while up-normal situation?

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is it possible to have dc motors on single chip

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what is the use of 6.6kV/6.6kV Transformer???

3 Answers  

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Difference between transmission line and cable?when ever a large water channel has to crossed it is easier to use cable then transmission line why?

1 Answers  

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In Electrical 'Single Line Diagram' cable nomenclature shows "2 X 1C X 630sq.mm to be provided for one incomer. The question is how many cable to be proved for one Incomer.

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What is the name of transformer oil?

18 Answers  

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