Answer / rakesh jha

A 3-phase transfomer required it's neutral to be grounded.
In delta-delta connection, neutral is not grounded. we use
small star-delta transformer to connect with delta-delta
transfomer and neutral will be grounded.

Answer / zizo

In cases where the neutral point of three phase system is
not accessible like the system connected to the delta
connected side of a electrical power transformer, an
artificial neutral point may be created with help of a
zigzag connected earthing transformer.

what are the available sizes of pin type terminal lugs in the market today?

0 Answers  

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A three phase transformer 460v primary 220v secondary (three phase four wire system.) Why did we get 460 volts across the neutral on the secondary side?

3 Answers  

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4-Why we measure the insulation resistance of main core and frame in spite of that must be connected with ground before energize the transformer?

3 Answers  

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what is bausbar?

4 Answers   Essar,

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What is the Ramping rate of Generator. What mena Ramping rate

2 Answers   Siemens,

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what happen if the secondry winding of the transformer is having less no of turns compare to the primery winding.

2 Answers  

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what is the effect of un-synchronized power.

0 Answers  

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Can the same motor be operated in both direction ?

12 Answers  

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What is meant by control system?

0 Answers  

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how to calculate the voltage drop in electrical cable while laying cables?

2 Answers  

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The knee point of a current transformer is normally unique and known.So why in the nameplate of a CT they put the minimum value like this Vk> 400v.

0 Answers  

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is it possible for different brand of H.V transformers to run or operate in parallel to each other? if so how much disturbance can this affact the H.V bus bar?

0 Answers   Unitech,

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