Answer / sumit b

P=VI Cos¢ (single phase)
P=√3 VI Cos¢ (three phase)

Answer / v.venkata ramana

L.V cable selection is Al cable 1sqmm carry 3amps
Cu cable 1sqmm carry 6amps

True or false question. 1.The fuse provide phase and neutral 2.power loss in electrical circuit can take place in (resistance or inductance or capacitance). 3.two phase system each phase has separated by a phase difference of (90 or 180 or 270 or 45). 4.3 phase balanced star connected load neutral current shall be (line current or phase current or zero or unity)

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what is W.T?specify the acceptable range?

0 Answers  

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

0 Answers   Dynamics,

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why do we have 230v a.c. as general voltage for domestic supply rather than others?

2 Answers  

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will aqatic animal die if we ground the wire of three phase instead of grounding to earth

2 Answers  

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* Signal transmission in sky wave propagation is due to ? a) Reforction of wave b) Reflection of wave c) Pierus through Inosphere d) None and Reason for this is????

2 Answers  

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what are the protections in 132 kv class electrical systems.....? hw u define that in elctrical terms..? . . .pls answr

2 Answers   ABB,

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ASTM D 3455 - Standard Test Methods for Compatibility of Construction Material with Electrical Insulating Oil of Petroleum Origin has been used for Testing Transformer Oils with a product placed in it. Aged Control Oil has a Power Factor of 0.032% at 100°C. Aged Oil with a Test component has a Power Factor of 0.093% at 100°. Is this increase acceptable? If not why? How much increase is acceptable?

0 Answers  

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if 20 hp motor starts directly delta connection.motor what will be the effect.

3 Answers   HP,

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difference bteween neutral grounding resistor and neutral grounding transformer??

1 Answers  

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how we can convert 3 phase to single phase without using any transformer

8 Answers  

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what diferent amoung three phase supply?

1 Answers  

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