tell 2 reasons for why only copper is used in domestic wires& only alluminium in transmission lines ?

10 Answers   ABB,

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Which of the following connection is best suited for 3-ph, 4 wire system A delta-delta B star-star C delta-star D star-delta

2 Answers  

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how to write program by ladder logic in case of PLC operation

3 Answers   Gridco, Sofcon,

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how the frequency was generated in power station

2 Answers  

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WHY CURRENT DECREASES WHEN VOLTAGE IS INCREASED IN A CURRENT TRANSFORMER ?

5 Answers   Sterling Wilson,

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HOW WOULD YOU PRESENT THE POWER FACTOR PRACTICALLY ON A GRAPH

4 Answers   Bhel,

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In separately excited m/c,we excite the field by a dc source,what not with ac source?

1 Answers  

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why buchholz relay is kept on inclined position and why it is cover??

1 Answers   GSECL,

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The SFC of an engine is 0.25 kg/kW hr. when the fuel used has a calorific value of 36000 kJ/kg. the thermal efficiency of the engine is

0 Answers   Caterpillar,

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Why do we use 36KV LAS for 33kv line and 9KV LAS for 11KV line?

1 Answers  

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what is the value of voltage & current lightning during rainy season.

0 Answers  

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Give the two basic speed control of DC shunt motor.

4 Answers  

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