A bundle conductor is made up of two or more sub conductors per phase.
Bundle conductors are called duplex, triplex, quadraplex, etc.
By utilizing bundled conductors, line inductance is reduced considerably with the incidental advantage of increased power transmission capacity of the line
With the higher effective diameter of the bundle conductor , the corona inception increases
Bundle conductors are used for EHV sub stations and EHV lines generally for 400KV & above voltage system
A bundle of 4 moose conductor is used on 400 KV bus and a bundle of 2 moose conductors is used on 400KV lines.
Width of maximum right of way permitted as per forest conservation act ‘1980 and its subsequent amendment dated 25 th October, 1992, are as per Table 1. Researches are being carried out for further optimizing the Right of Way. Guidelines of forest environmental rules shall be followed to avoid excessive tree cutting i.e. all the trees should be cut from root level in the 3 m corridor below each line conductor / earth wires. In the balance corridor, trees branches are only to be lopped to attain the specified clearance as per Table 1. Table 1 – Guidelines for Right of Way as per forest conservations act 1980 and subsequent amendment dated 25 th October, 1992 Line voltage (kV) 66 110 132 220 400 500 HVDC 765 Row width (Meter) 18 22 27 35 52 52 85 Electrical clearance: Electrical clearance while power lines crossing each other. In case of power line crossings, minimum clearance between lowest conductor of line and ground wire / top conductor of ...