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Is it possible to connect a generator of 100MW in parallel to that of 50MW?
yes it is just hook it up and go you will need to check your calcs as you will increase your amperage. while not often done I have done this before.
Why must use 5A fuse when maximum current is 4.33A?
Generally speaking, you need to account for any variance in electrical output. There are a lot of factors that can cause a fluctuation in electrical amperage. You wouldn't want to set the fuse too low or it would blow needlessly, but you also don't want to set the fuse too high, or a dangerous short will not be interrupted. A power source/device can produce/draw more amperage while damaged than in normal operation. A 4.33 amp device might not run at 5 amp while working, but while damaged could exceed that dramatically. When looking at the reason for having a fuse, it provides two things: 1) help protect a working device from having too much amperage forced into it from a damaged power source 2) help protect the power source from having too much amperage draw from it by a damaged device.
How do you calculate power use for a home power generator?
Click the link. There you can figure the size generator you need.
What fuse do you need to run a 200 watt bulb with 230V?
The formula you are looking for is Amps = Watts divided by Volts. Once you find the amperage you can decide as to the size of a fuse you should use. Remember that fusing protects the conductors of the circuit and not the load of the circuit. A #14 wire is rated at 15 amps and can legally be loaded only to 12 amps.
What size breaker do you need for 9000W at 440V 3phase?
This formula will give you the amperage I = kw x 1000/1.73 x E x pf (pf = power factor). Take the amperage and multiply it by 125%. This will give you the breaker size that you need.
