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
Force: Force may be defined as a push or a pull upon an object.  In the English system the pound (1b) is used to express the value of a force.  For example, we say that a force

two insulated charge Cu spheres A and B OF IDENTICAL size have charge qa and -3qa when they are brought in contact with each other and separated,what are new charge on them

1. A screw gauge consists of U- shaped metallic frame F. To one end of this frame, a flat shaft is fixed. On the opposite end of a hollow long cylinder C is fixed. 2. The hollow c


Q. Show the linked representation of the graph.                                                            Ans: The linked representation of given graph is:


What are ferrites? Ferrites are ceramic compounds having trivalent metal having three valence electrons, iron and oxide of divalent element

Applications of cement mortar 1. It is used to carry out pointing and plaster works on exposed surface of masonry. 2. It is used to bind the building units like bricks, ston

The nuclei have been separated on the basis of the number of protons (atomic number) or the total number of nucleons (mass number) as given below: (i) Isotopes: The atoms of ele

Find the speed of the wave A copper wire, whose cross-sectional area is 1.1 x 10 -6  m 2 has a linear density of 7.0 x 10 -3 kg/m and is sturng between two walls. At the ambient