Why are transformers used in the National Grid to produce high voltages for transmission?

Why are transformers used in the National Grid to produce high voltages for transmission?|||There is less power loss if you push a small current with a high voltage than if you push a high current with a small voltage.





A transformer will increase (or decrease) the voltage depending on how it is set up. A transformer is basically a metal doughnut usually iron cos being magnetic is very important. The doughnut has coils of wire wrapped around it that will have a current passed through it. The electric current induces a magnetic field and will induce an electric current in another coil wrapped around the core.





Vs/Vp = Ns/Np





is the equation where Vs is the induced voltage in the secondary coil Vp is the voltage in the primary Ns is the number of coils in the secondary coil and Np is the number in the primary.





So... with a higher voltage less current will pass through the wires meaning that less of the energy is lost due to the resistance of the wire.|||To transmit the power for 1000nds miles we need


transformers. power=Voltage times Current(P=V*I)


To transmit Ether we can increase the current or


a voltage. By increasing current we increasing


the diameter of power lines which iseconomicallyy


stupidest thing to do.That'ss why we increasing


voltage by using step- up transformers.


Oncee transmission is complete we using step


down transformers to decrease the voltage.