AC

Excitation system

Excitation System in Generator

What is Excitation System? Excitation is the technique of creating a magnetic field using an electric current. An excitation system’s primary job is to supply direct current to the synchronous machine field winding. The excitation system regulates the field voltage and field current to carry out control and protective tasks necessary for the power system …

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Advantages of A.C. over D.C.

A.C. means alternating current, the current or voltage which alternates its direction and magnitude every time. Now a days 95% of the total energy is produced, transmitted and distributed in A.C. supply the reasons are the following. 1) More voltage can be generated than D.C. ( Up to 33,000 volts, when D.C. 650 volts only …

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