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2011/06/25 at 2:14 pm in reply to: if a generator is generating 20MW and only 5MW is used where does the other 15MW goes? #12219Mohsan islamParticipant
dear
yes , The rating of generator is in kva not in kw.
if load is 5MW, then generator will produce power according to load. It does not produce rated power all the time. some power lost as reactive power in kvar and active power is used in kw which may be 5MW, 6MW,15MW etc upto 20MW
Mohsan islamParticipanti want
to calcute my home electricity load and also want to know illuminus calclations
formuly any bdy hlp me plz?Hello Dear mhrnaseer,
You can measure the load current of your home using clamp
ammeter.
Multiply load current to standard voltages which are usually
220V,which results your home load.
Illumination is defined as “the emitted luminous flux per
unit area is called illumination”.
Mathematically
E=Φ/A (lux).
Illumination at any surface can be calculated by two laws:
1) inverse square law
2) Lambert’s law
1)inverse square law tells that the illumination of a
surface is inversely proportional to the square
of the distance of the surface
from the source.
i.e E «1/d^2
2) Lambert’s law tells that illumination is directly
proportional to cosine of the angle made by the normal to the illuminated
surface with the direction of the incident flux.
i.e E « I cosΘ where I is luminous intensity.
combining the both laws we get
E «(I/d^2)cosΘ
Or
E=(I/d^2)cosΘ
Mohsan islamParticipantTransformer losses are found by short circuit test and open circuit test.

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