transformer question

[Nemesiswes]

Hey sorry  if i put this in the wrong place on the forums but i really need someone to help answer this question, it's been on my mind for awhile, well the question is what would happen to a transformer if you were to have more power on the secondary then the primary , would the primary start to decrease it's amperage pull or would it increase or would the secondary start to act like the primary and be induceing power back into the primary feed and if it does induce power back could that cause a problem with the power supply (say a generator) but the generator is current limited with a fuse so even if it did induce power back would it really do anything??? well thanks for any info 

[angryScientist]

Hi there,
For an answer to the question, I would say that if you put any power back into the secondary then it would put power back into the primary. Even if it was a 100th of a Watt you would still see it on the primary.
As for what it would do to the power supply, I couldn't say. There are too many variables. What is the phase of the introduced power? What is the frequency? What type of power supply is it? What is the power rating of the supply?
If the supply can handle power you put in to it plus the power it produces it's self, no problem. If the power you put in combines with the produced power in a additive way then something could break down in the circuit where those waves meet.

[Nemesiswes]

thanks, so without taking into account all the variables, it would still work if say you just limited the amount of power that could back into the generator with a resistor and the rest was just routed back to the secondary output . I know it's alot more complicated then that but in it's most basic form , would that work