Power distribution system The medium voltage transformer using transmission lines are reduced by step down transformer (415V, or 240V) are used to the consumer. This system includes the feeder lines, distributors and service mains. Feeder line The feeder line is nothing but similar as power transmission conductors. It connects the power from sub-station and power […]
Incandescent lamp The filament of this lamp is heated up to the incandescent stage of heat. So these types of lamps are called as incandescent lamps. There are two types. 1. Vacuum type lamp and 2. Gas filled type lamp In this type of lamp, the sphere shaped glass cover is used. The glass stem […]
Sodium vapour lamp Sodium vapour lamps are some of the most efficient lamps in the world. They have an efficiency of up to 190 lumens per watt compared to an incandescent street lamp which has between 15 and 19 lumens per watt. This sodium vapour lamps comes in two major groups: 1. High pressure sodium […]
