why usa use 60hz and 110v?

2 Answers  

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What is the correct procedure to shutdown VCB in 11kv substation.safety and work procedure

3 Answers   EGA,

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what is meant by loss of field in a DC motor? how a universal motor works?

0 Answers  

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when secondary volts is given how do we find primary volts, turns, amps of primary and secondary given???

1 Answers  

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what is basic difference betmeen normal & flame proof motor??

0 Answers   Dynamics,

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hi pot test principal

1 Answers   NTPC,

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For small size, high frequency coils, the most common core material is- a. )Air b. )Ferrite c.) Powdered ion d.) Steel

0 Answers   Ecil,

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Why r use in the tap changing x' mer.

2 Answers   L&T,

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What is the function of Buchholz relay in transformer ?

1 Answers  

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Why diversity factor are applied to the load?

2 Answers  

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At light load transformer efficiency is less because A secondary output is low B transformer losses are high C fixed loss is high compared to output D copper loss is small

1 Answers  

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parallel operation for tansformer which condition fill fil for that

11 Answers   ITC Infotech, Suzlon,

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