In DC current-excitation to transformer, why it sucks more current? Eventhough there is no power transfer between primary and secondary? R is very low so it should suck less current only na thn y its current increases?

2 Answers   Cairn,

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Detailed working of a diesel generator set ?

1 Answers   Airtel, Honda, Kirloskar,

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Why air gap in rotating machines should be small?

3 Answers  

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why the earth terminal in three pin top is longer than rest of the two terminal and of bigger size?

6 Answers   BARC, MAHINDRA,

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Can we use same copper cable for both AC & DC power.

3 Answers  

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what are the types in Relay?

1 Answers   PLA,

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should %impedance be high or low in a power transformer? if so why?

0 Answers  

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why we can not use dc in our country( INDIA)

5 Answers  

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phase association of 3PH L&T static CT meter is wrong. means 1PH & 1 CT connected properly and other 2 voltage and CT's inter changed. what would be the impact in the reading?

3 Answers   KSEB,

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what is the name of the oil is used in transformer?

5 Answers  

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how to calculate the tarriff for an industry whose kva demand is 10 mva

0 Answers  

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Name the test signals used in control system

0 Answers  

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