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
A gas is compressed from 400 cm3 to 200 cm3 at a constant pressure of 100 kPa. At the same time, 100 J of heat energy is transferred out of the gas. What is the change in internal


It is the energy possessed by a body because of the interactive forces inside the object. This may be defined as the work done in assembling all the particles of a body in a exact


It is described to this law, if the temperature T of the object is not very dissimilar from that of the environment T0, then rate of cooling -dT/dt is proportional to the temperatu

Lenz''s Law states that the Nature of induced emf in the coil is such that it opposes the causes of it. It can be explained by a simple understanding of Faraday EM induction exper

How to make a simple pulley A reasonably satisfactory pulley can be complete from a wire clothes hanger and a cotton reel. Cut off both wires of the hanger at a distance of abo

How fast would the train be travelling when it in Lac-Mégantic derailed. There were 5 locomotives and 72 cars filled with 113,000 litres of crude oil. The elevation was 520 m Cote


Step to improve Power Factor By using static capacitor: Static capacitor is usually used to better the power factor of the power system. As the capacitor draws leading curre