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Direct Transmission – Advantages of DC transmission, Disadvantages of DC transmission
Direct Transmission Let us see the transmission of DC power from the AC power. The single line diagram of high voltage direct current transmission is given in Alternative current is generated and stepped up to high voltage through the sending end transformer. This high voltage alternating current is converted to the direct current by a […]
Overhead line transmission – Main components used in overhead lines, Transmission line conductors, Properties of conductors
Overhead line transmission The overhead lines are used to transmit electricity from power plants to consumers. A network of electrical power lines are used to transmit the electricity over a geographic area is called power grid. Main components used in overhead lines i. Electric conductors ii. Poles and towers iii. Insulators iv. Cross arm that […]
Arc lamp and Carbon arc lamp
Arc lamp The principle of an arc lamp is that when two electrodes carrying current are separated through a small distance, an arc is struck between them. The arc lamps were used in the past for street lighting purposes but nowadays these are used when extreme brightness is required. Carbon arc lamp is most commonly […]