Answer / vysakh v

when two transformers has to be operated in parallel,their voltage ratios must be the same,Polarities of the transformers must be the same,Percent (per-unit) impedances of the transformers must be the same,Phase sequences and zero relative phase displacement of the transformers must be the same.

Answer / thavam

load 50% available condition connect the one transformer on
the load

Answer / k.prakashchandra

Yes

I have recently seen a transformer which had two primary terminals and was connected between two lines,i would like to know what kind of transformer is it?short discription about it,any advantages,purpose of usage of the same.............

8 Answers  

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AP Transco Assistant Engineer (Electrical) Model Question papers

2 Answers   APTransco, HCL, Tranco, UPSC, VMware,

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hello every one, what is the difference between the Kvar and farads, Rating on Power capacitor is for eg: x kvar, and normal capacitor is eg: x farads. what is the relation between these two?

3 Answers  

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Can you explain about Restricited earth fault protection scheme

0 Answers   NCC,

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What is the need of earthing transformer for delta side of a transformer. (Think of a line section between a star/delta transformer at a grid substation and delta/star transformer at a village. An earthing transformer is there at the delta side of the star/delta transformer at grid substation). As there are no ground reference there will not be fault current if a one phase is grounded. Further L-L phase will be sensed by the primary side of star/delta transformer as a L-G fault. So why an earthing transformer is required at delta side

0 Answers   CEB,

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what is the difference between delta-delta, delta-star transformer???

3 Answers  

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Is it required to lay 2 runs of GI wires along with armoured cables from one power DB to another Power DB?

0 Answers  

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0 Answers   Indian Railways,

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0 Answers   ABB,

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what are the necessary basic electrical topics to learn for mechanical engineer to deal practical problems.

0 Answers   Honda,

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How to know th details about an electrical Drawing ? Please mention the easy method.

0 Answers   Siemens,

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generally on the roadside v hav 11kv line which is being step down to 440v line to line....so any1 can tell me which type of transformer they r using whether it is star to delta,delta to star etc...???

9 Answers   Core Solutions,

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