why is efficiency of transformer more than that of other rotating machines?

1 Answers  

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An engineer measures the direct current resistance of a transformer using ohm meter. When he/she takes out one of the leads of the meter, spark comes.. Why ?? This effect is known as...

1 Answers   Saint Gobain,

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the circuit having same properties in either direction is known as.......

2 Answers  

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ohm's law is applicable to DC/AC/Both??

6 Answers   KPIT,

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What is negative sequence over voltage element?

0 Answers   Green T&D,

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Y phase plates are used in transmission line??? what is there need???

0 Answers  

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when the direction of a 3phase induction motor is reversed , is there any losses increases?

5 Answers   IOCL,

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I decided to provide a 11KV / 440V Xformer in my Substaion. What are the protection required for that?

5 Answers  

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orifice sizing how done, checking & selection

0 Answers  

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wat s the difference between diode and capacitor

20 Answers   TCS,

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list the advantages of RCCB over other circuit breakers?

0 Answers  

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what is the difference between ac and dc generator

14 Answers  

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