Recent content by mosta

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Prime mover only moves rotor.. if rotating friction and air resistance is the same at constant speed, how load affects on fuel consumption? and when we reduce the load, fuel consumption becomes reduced too. is it means that torque/power-needed become lower. when load is reduced, the magnetism in...

What I know is there 2 friction; Air resistance and Weight of rotor? Is load of generator consider as friction? I noticed that when generator's load is half, fuel consumption is reduced (but RPM and frequency is still same). I tried to think how that, although weight of rotor is constant. does...

Hello I tried to look for the answer but didn't find enough one for being satisfied How excitation happens in big generators? If we produce electricity from electromagnet on the rotor, and electromagnets need electricity to be activated... and this happens by excitater on same rotor! and this...

Seems like 9 kw is scary number for you :D, anyway. If we said it is 1 kw, I think it can be done and worth?

3 batteries, 12V 250AH.. indeed, I've got those batteries as gift long time and I want to use it but inverters for that capacity is kinda expensive so I tried to think in a way to make it AC and 220 with cheap methods. And I've a lot of small rechargeable batteries ( 18650, 3.7v 3000mah ) so...

I've 3 batteries ( each 3kw X3= 9kw ) and If Inverter for 9kw is too expensive, I just want the 12V AC, so it can be done without transformer? So, in this diagram: http://www.aaroncake.net/circuits/inverter.gif Can I just remove the transformer and put powerful transistors to withstand 9kw input...