what is meant by substation?

5 Answers  

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Sir I want questions for rrb sec technician gr III (electrical)

1 Answers   RRB,

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transform oil how going to act like ainsulation purpose

1 Answers   Siemens,

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After doubling voltage from solar cells & use step down voltage transformer can we get high current output with low voltage.

0 Answers   Transco,

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What is the operational principle of direct current current transformer and direct current potential transformer?if possible plz reply with ckt. diagram.

1 Answers  

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if our load is 65000 watts howcan we find out all char like cable size. mcccb etc

3 Answers  

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What are the advantages and disadvantages of the ac motors?

0 Answers  

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in the thermal power plant, why we use the condenser (for cooling the steam) when we have to heat the steam again. i mean why we are cooling the steam,

6 Answers  

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What is the AVR in DG & its functios

2 Answers   Godrej,

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7. Hrc fuse provides best protection against.......

5 Answers   SSC, UGVCL Uttar Gujarat Vij Company Ltd,

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If the line voltage is reduced to 75% of its rated value then by what percentage current will reduce ?? 75% 25% 50% no change and why ?

0 Answers  

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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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