How does and Earth Fault Relay operates in DG set control panel?

1 Answers   Cummins, University,

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a 120 60 watt incandescent lamp has to be operated from 50 c/sec 1 phase ac supply. in order to do this a circuit element has to be connect in series with the lamp. which one of the following sries element is preferable.

1 Answers   SSC,

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the parts of transformers ?

1 Answers   Bhel, Facility management,

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what is the maximum load on for 10 kva & 25 kva transformer

8 Answers   ABB, Power Grid,

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surge tank, hrc fuse, earthing transformer, firm power objective type

0 Answers  

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send me the upsc conventional papers of 2006

1 Answers   Juniper Networks, Siemens,

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What happend if we connect star point to ground of a star connected motor? And what will be effect on system and effeciency of motor?

1 Answers  

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In an electrical conductor, if current flows because of flow of electrons, then why not the conductor gets thinner day by day???

1 Answers  

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why the transformer neutral give to the earth ?

2 Answers   Jindal, JLL,

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what is recommended breakdown voltage of transformer oil?

5 Answers  

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for hipot test on 33kV busbar, we will test on 70 kV or 56kV, what is the acceptable leackage current?

0 Answers  

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what is the difference between delta delta and star delta connection transformer? why we use delta delta transformer since it need earthing transformer for grounding?

0 Answers  

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