I just don't understand it, what does it mean when people say 3 phase or 2 phase Voltage, I know higher phases are used to power bigger more voltage demanding things but what does it mean?Can you get both AC and DC in each phase?Is phase just basically saying higher phase higher voltage for higher voltage equipment?How do you convert between phases?Are high phases created with the use of transformers or can they be created directly from things like wind turbines?What is the maximum and minimum phase?How does the phase effect the amps?
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First off you need to realize that AC power is 60 cycle sine wave that goes from positive to negative. (50hz in europe). With 3 phase power you have 3 hot circuits. The peak voltage happen at a different time on each of the 3 hot circuits. You can not have any phases in DC power because DC is a constant voltage, it does not cycle from positive to negative. Higher phase does not higher voltage. You term high phase makes no sense. It's either a 3 phase circuit or a single phase circuit. A single phase circuit is when you have just one hot wire. Like your wall outlet. Note that you can get a single phase circuit by just using one part of a 3 phase circuit. Phase does not affects amps. To make a 3 phase circuit from a single phase circuit you need a motor/generator.
Let me explain briefly about the Electric power source and what it has. We get electric power source normally from power station where it is produced by means of Electric power generators. The generator has an Armature which comprises three windings (say coil). Each winding has two ends and all these ends are connected with each other. From Armature windings 'THREE LINES' are drawn to transmit the Electric power source. {Power station produces very high voltage (Electro Motive Force) and transmit the source through over head lines to the various step down Transformers where it is finally step-ed down to low voltages ranging from 600 to 220 volts and supplied to us.} As said above the 'THREE LINES' that Carry's the electric power source from the power stations to us are said as THREE PHASES. VOLTAGE is the unit of the 'Electro Motive Force' (EMF) which is supplied to us from power sub station. What is 220 and 120 volt ? Power substation Supply power source to us by means of 4 wires where the three wires which are called Phases as said above and the fourth wire is called as Neutral. The phase wires carries power source where as Neutral wire carries no power source. America and other countries which follows American Standard, use a phase wire and a neutral wire for 120 volt Supply especially for lighting loads and two wires of phases are used for 220 volt Supply for appliances etc., If you measure the voltage between phases it will read 220volt and phase to neutral it will read 120 volt. Manufacturers of motors, home appliances, electrical equipments, etc., are the deciding authority to Communicate the voltage requirement of their PRODUCTS based on the way they made them. We can find this detail in the name plate of the equipment. Regarding AC and DC Supply. Batteries are made to Supply DC Supply and it can be used for AC equipments with suitable invert-or to change DC to AC.
