Various Systems of Power Transmission

It has already been pointed out that for transmission of electric power, 3-phase, 3-wire a.c. system is universally adopted.  The different possible systems of transmission are :

1. D.C. system

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Comparison of D.C. and A.C. Transmission

The electric power can be transmitted either by means of d.c. or a.c. Each system has its own merits and demerits.

1. D.C. transmission.

For some years past, the transmission of electric power by d.c. has been receiving the active consideration of engineers due to its numerous advantages.
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Electric Supply System

The conveyance of electric power from a power station to consumers’ premises is known as electric supply system. An electric supply system consists of three principal components viz., the power station, the transmission lines and the distribution system.
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