Not on small household generators as they are only single phase. On large industrial 3 phase machines over 100 KW there are internal taps that can be changed depending on the generator coil configurations to select a variety of voltages.
The voltage and frequency ARE the output of the generator. If you change the fuel to the generator, it will change speed, and the voltage will change. Less fuel = less speed = lower frequency = lower voltage.
input 220v ac & output 24v dc
you can't
To convert 110v to 220v using a step-up transformer, connect the 110v input to the primary winding and the 220v output to the secondary winding of the transformer. The transformer will increase the voltage while maintaining the power output.
No, as long as the generator has sufficient KW for the pump's requirements. A 3/4 hp, 220V motor draws around 5 to 6 amps. That's 1.1 to 1.3 KW, but because motors have high starting current, your generator should be rated for at least twice that, preferably 3 times. I would recommend a 3.6KW 220V generator to be safe.
Yes
To get 220v from 12v, you will need to step up the voltage. One option is an inverter, another option is a step-up transformer, a third option is a motor-generator set. There are other options. It all depends on your power requirements.
If it is AC, a transformer. If it is DC, a motor generator.
nothing
Yes it will. The only thing that you have to keep in mind is that in Angola the power is 220V so U'll need a power brick with 220v. Or U can buy a power converter to convert 220v to 110v.
Volts cannot be converted to amps. If you mean convert 220v to 12 volts output, then you need a 220v to 12 v step down transformer with the VA or watt rating you require.
Best way is to use a step up transformer to step up the voltage from 110V to 220V