Electric Supply System

Definition of Electric Supply System?

Electricity Supply System means the network of electrical components used to generate, transmit, distribute and supply electric power.

Conveyance of electric power from a power station to consumers’ premises.

                                    AC / DC Overhead / Underground

                                    Presently 3-phase, 3-wire ac for transmission

                                    3-phase, 4-wire ac for distribution

What are the types of supply systems?

According to the various protection methods and terminologies defined by IEC, low-voltage power distribution systems are divided into three types according to the different grounding methods, namely TT, TN, and IT systems, and are described as follows.

The power supply system is broadly divided into 3 sectors: 

                                             (1) the power generation sector, 

(2) the power transmission and distribution sector, and 

(3) the retail sector.

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