Acsr (aluminium conductor steel reinforced), Physics

ACSR (Aluminium Conductor Steel Reinforced):

Owing to the low tensile strength of aluminium, aluminium conductors produce greater sag which prohibits their use for longer spans and make them unsuitable for long distance transmission. The tensile strength of aluminium conductor is increased with a core of galvanized steel wires. The composite conductor thus obtained is called as ACSR. The steel conductors used are galvanized in order to prevent rusting and electrolytic corrosion. The cross sections of two metals are in the ratio 1: 6, but in the case of high strength conductors their ratio may be 1: 4.

Properties:

1.      The steel core takes a greater percentage of mechanical stresses while the aluminium carriers bulk of current.

2.      ACSR, conductor has a larger diameter than any other type of conductor of same resistance, so corona losses are reduced but stronger supports are required for a given span.

3.      ACSR, conductors get deteriorated in service due to atmospheric corrosion (as a result of bimetallic action of zinc and aluminium, electro-chemical in nature).

4.      Since the skin effect is very predominant in ASCR conductor, therefore, its resistance (composite conductor) is taken equal to that of the aluminium covering alone. The resistance of ASCR conductor is taken to be equal to that of a non-magnetic conductors having diameter equal to that outside of the ACSR conductor.

Uses: ACSR conductor being of high tensile and lighter in weight produces small sag and therefore longer spans can be used.

 

 

Posted Date: 7/21/2012 7:49:30 AM | Location : United States







Related Discussions:- Acsr (aluminium conductor steel reinforced), Assignment Help, Ask Question on Acsr (aluminium conductor steel reinforced), Get Answer, Expert's Help, Acsr (aluminium conductor steel reinforced) Discussions

Write discussion on Acsr (aluminium conductor steel reinforced)
Your posts are moderated
Related Questions
The birghtness of objects past Neptune actually varies approximately as 1/d^4. Why is that the case?

The Broken Pencil-Ray Optics A general classroom demonstration includes placing a pencil (or similar object) within an upright position within a round glass of water. The penci

SMALL ALKALINE CELLS: Hermetically sealed Ni-Cad cells are produced in the same size and shape as their primary counterparts. They are small, portable and maintenance free, but

A steel wire in a piano has a length of 0.6000 m and a mass of 3.600   10 -3  kg. To what tension must this wire be stretched in order that the fundamental vibration correspond to

Q. State Huygen's principle. Huygen's principle: (a) Every point on a specified wave front may be considered as a source of secondary wavelets which spread out with the sp

a person holds of hay over his head for 30 min and gets tired . has he done some wirk or not? justify your answer

si el numero atomico del sodio es 11 y su numero de masa es 22,diga¿cuantos electrones,protones y neutrones respectivamente,tiene su atomo neutro?


A sphere of mass m and radius r is on a smooth fixed inclined plane in equilibrium, if now the sphere is displaced by a small distance along the plane , what will be angular freque

At a distance of 4,000 ft from the launch site, a spectator is observing a rocket being launched. If the rocket lifts off vertically and is rising at a speed of 600 ft/sec when it