Answer / shakeel tu

it is the cosine of the angle between voltage and
current.so we can write vi sin(some angle).

Answer / balaji

The real power means p=visin
angle,The reactive power means p=vicos angle...
the ex for reactive power is battery...in a power station
the reactive power is used to inject in the some additional
to real power.....

What is the difference between earth and neutral

4 Answers   ABB, Tamboli Engineers,

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What is reverse power relay?

0 Answers  

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How to PLC give the command to electrical

1 Answers  

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how to check the earth resistance value& what is the minimum earth resistance for good earthing sysytem.

33 Answers   Brookfield, BSNL, DMRC, Epoch, KPTCL, Polycab, Power Control, SIEA, Siemens, Wipro,

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Why current shoots up in the secondary on the knee point voltage during saturation test of CT? How core saturation effects the secondary current (while the primary side is open)? What the logic behind this?

0 Answers  

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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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Whether the over frequency protection is turbine or alternator and why?

1 Answers   Marg,

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A CT is marked as 10VA 0.2FS in its name plate. What is it? Where it is used?

1 Answers  

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Why high Voltages come in multiple of 11, like 11 KV, 33KV, 66 KV, 132 KV etc.

11 Answers  

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what happened when we supply a dc current in dc motor?? can it worked properly?

0 Answers  

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State and define norton’s theorem?

0 Answers  

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what is the reason for choosing DYn11 in transformer, why not DYn12 or something else

1 Answers  

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