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
an aeroplane is moving horizontally with a velocity of u . it drops a packet from a height h. the time taken the packet in reaching the ground is?

working and construction of interferometer

As a longitudinal wave moves through a medium, the particles of the medium: w) Vibrate in a path parallel to the path of the wave x) Vibrate in a path perpendicular to t

(i) A matter pulse is not electromagnetic in behavior. (ii) Practical observation of matter waves is possible only when the de-Broglie wavelength is of the order of the size of

The given circuit diagram shows a series LCR circuit linked to a variable frequency 230 V source: (a) Verify the source frequency which drives the circuit in resonance. (b) G

Derive the mathematical expression PV r = constant for an ideal gas undergoing adiabatic reversible expansion.

Write down the relation between focal length and power of a lens. Write down the expression for the equivalent focal length of two thin lenses separated by a distance.

The lead alloy: Most of the soldering in the electronic industry is carried out using tin lead alloy. Pure lead metals at 327 0 C, whereas tin melts at 232 0 C and the mixture of

Explain Tension Force (Ftens) : Force that is transmitted by a string, rope, cable or write when it is pulled tight by forces acting from opposite ends. The tension force is fix

Illustrates the research of electron microscopy? Research in electron microscopy includes: a. Materials qualification b. Electron beam induced deposition, and materials a