what generator do i require to buy to run a 100 watt bulb?

Question

i have a project to generate electricity which im workin on. for this i got to buy a generator which will light a 100 watt bulb at full glow... i want to know what generator has to be purchased such that i get 100 watts.. i want to know the specs, that is minimum speed, torque and /or everything else that i need to know while getting a generator made for the specs mentioned.can anybody guide me.thanx

Answer 1

Generators are rated by the wattage. If you buy a 100 watt generator, you will be able to light the bulb. If you want to overengineer, double the capacity and go with a 200 watt minimum generator.

Answer 2

I'll try. First things first. At what voltage is the bulb operating? It can be 12 volts DC, 120 volts AC, or rarely 240 volts AC. These are standards.

If it is 120 volts AC then you need a source of 100 watts to light the bulb. Then when you figure in losses from .707 watts RMS, you would probably want a 200 watt generator.

Here's the hard part. The smallest AC generator that I've seen is 700 watts. Honda makes a 4 cycle 1000 watt generator.

Basically all generators operate at 3600 RPM or 1800 RPM. This is where you get the 60 Hertz (cycle) AC from.

If you are using a 100 watt 12 volt DC then I = P/E. Or to find the amount of current needed to produce 100 watts I=current, P=power or watts, E=Voltage. So to find how much current you need divide the watts by the voltage. I = 100 watts/ 12 Volts. That equals 8.333 Amps (current).

You can build a 12 volt generator with a small horizontal shaft gasoline lawn mower and a car generator with a built in regulator, and a car battery. This will operate your 12 volt DC bulb. Plus you can put a inverter on this system and change the 12 volt DC to 120 or 240 volt AC.

I suggest you check out this web site. They explain everything in detail. Check it out, be safe, and have fun.

http://theepicenter.com/tow02077.html

Answer 3

A generator is rated in watts as is the light. One of the smallest is 3000 watts. Divide that by 100 and u have your answer. Most all are designed to run at 60 cycles . The speed only changes to Carry the change of load,and it is in degrees ,not cycles. The 60 cycles are very stable and the advanced version has the ability to parell.

Answer 4

Probably you will not be able to buy a generator with only a 120 volt, 100 watt output.

Perhaps the lest expensive way would be to use a car battery and one of those gadgets that uses a 12 volt DC to 120 volt AC inverter.