What are the two segments of nyquist contour.

0 Answers  

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anti pumping relay function

3 Answers   Hofincons,

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what is the safety of VCB.

5 Answers   Nagarro, Roto Power, RotoPower,

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relation between voltage and frequency.

5 Answers   IIUI, Lucky Cement, Reliance,

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last week we did the REF relay test by closing single pole (R phase) of CB and apply 380V at the primary of delta transformer. we get 33A at the primary of the R phase star end. but we get 380A at both R an B in delta side. how and why?

1 Answers   Siemens,

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For my plant the electricity department charging some amount for t/f losses. May i know what are transformer losses

1 Answers   L&T,

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At the time of 1st charging of transformer, there were huge inrush current, so why at that diffrential relay are not operated? Why?

3 Answers   Adani,

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why 6.6,11,22,33,66kv? what basis they have considered?

5 Answers  

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In 3.5X150 Sq.mm cable what does 150 stand for outer dia or inner dia?

4 Answers  

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what is negative d.c. voltage, why this voltage is used in base transciever station.

0 Answers   Vintage Air,

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why we step down the voltage from 440 to 220 in machines

4 Answers  

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the power consumption of perminant magnet moving coil?

1 Answers  

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