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- 2011/04/27 at 1:20 am in reply to: if a generator is generating 20MW and only 5MW is used where does the other 15MW goes? #12020
Simon Foster
ParticipantMizun said:
If you load 2tons on a truck of 18 tons, where does 16 tons go?
If you can answer this, you have answered your question.
Mizun Group
That's your answer…
The generator is capable of 20MW but only does it when required.
Simon
Simon Foster
ParticipantAnother way of looking at this, and the way it's measured during factory acceptance testing is:
Short circuit is placed on the LV connections, then simply apply a voltage to the HV connections to create Full Load current in the LV winding.
The percentage of HV voltage required to do this is also the percentage impedance.
example:
600V required on HV to circulate Full Load current in the LV.
If HV rated Voltage is 12000V
The %Z is 5% or 600/12000
Hope this helps
Simon
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