Can anyone explain how the vector diagram of a transformer which doesn't have name plate be found whether it is Dy11/Dy5/Yd11 and so on?

4 Answers   TATA,

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To prevent the mal operation of a differentially connected relay while energizing a transformer, the relay restraining coil is baised with (a)second harmonic current (b)fifth harmonic current (c)third harmonic current (d)seventh harmonic current

2 Answers  

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what is the meaning of DY-11 Z-5%

1 Answers  

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Transformer diagram mention each parts ?

0 Answers  

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how we decide scurt (disc) of insulator with respect to kv rating

1 Answers  

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In a power conditoining unit (inverter) of a solar plant when we measure the d.c. current fed by different strings of solar plates to inverter, the current in the negative wire is less almost by 1 ampere to the current in its positive wire say current in positive wire 5 A , then current in negative wire of the same string is 4 A. Since the current entering should be equal to current leaving then why the current is noticably less in negative wire.

0 Answers  

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What do you mean by boost voltage in case of battery charger?

3 Answers   MahaGenco,

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DIFFERENCE BETWEEN POWER AND CONTROL CABLES

9 Answers   NCC,

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in india per day how much power is generated including all power station

0 Answers  

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Why do we require transformer with less specific weight if supply frequency is increased?

0 Answers  

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Explain the fundamental difference between emf (electro motive force) and pd (potential difference) ?

0 Answers  

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sugest any typical project ?

0 Answers  

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