If one tertiary phase i.e. R,Y or B is earthed of a loaded type tertiary delta connected (Without load)of a power auto transformer, what is its advantage/disadvantage?

0 Answers   Amara Raja,

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What do you mean by transformation ratio of instrument transformer?

0 Answers  

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1.What is the proper definition of power system stability? 2.some times a blue spark is visible in the secondary side of a distribution transformer at the contact position of bushings and fuse wire,why?

1 Answers  

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Safety of on line ups

0 Answers   Bhushan Power Steel, GE,

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what is called inrush current??

1 Answers   KSEB,

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What is the difference between Contactor and Circuit breaker ?

8 Answers  

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what is the meaning of Ring Mean Unit in a substation or trasformer also tell me its oerpuse?

4 Answers   NPTC, NTPC,

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how can we change the rotating direction of single phase AC induction motors?

12 Answers   Heubach Colour, L&T, MNM Jain Engineering College,

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What is the starting current of a DC Motor?

2 Answers  

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A 10 kva ,400v/200V , single phase transformer with 10% leakage impedance draws a steady short -circuit line current of

1 Answers  

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What is LMU and LMDU. in PLCC communication of 132 kv transmission line. is it possible to use only one LMU with out LMDU ?

1 Answers  

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How efficiency of thermal plant can be improved?

0 Answers  

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