Electrical Conductors and it's types.pptx

This PowerPoint presentation is about Electrical Conductors used in Electrical Power system

1. CONDUCTOR

2. WHAT IS CONDUCTOR A conductor is a substance or material that allows electricity and heat to flow or pass through it is called conductor. The ability to conduct electricity is called electrical conductivity. The ability to conduct heat is called heat conductivity.

3. In an electrical conductor, the electrical charges moves from atom to atom when the potential difference is applied across them. m ost metals are electrical conductors. In an thermal conductor,the heat passes from atom to atom when we supply heat energy.

4. TYPES OF ELECTRICAL CONDUCTORS Plasma These are the best type of electrical conductors.

5. Semiconductors These type of conductors which allows electricity to flow through them but not as well as plasma electrical conductors.

6. Resistors These type of conductors that makes electricity flow very difficult.

7. GOOD CONDUCTOR OF ELECTRICITY Silver 8.Platinum Gold 9.Brass Copper 10.Bronze Aluminum 11.Graphite Steel Iron Mercury

8. OVERHEAD CONDUCTORS Overhead conductors means electrical conductors installed above ground, except conductors deenergized and grounded or enclosed in protective conduit or other metal covering

9. PROPERTIES OF OVERHEAD CONDUCTORS MATERIAL High electrical conductivity High tensile strength so as to withstand mechanical stress Relatively lower cost without compromising much of other properties Lower weight per unit volume

10. TYPES OF CONDUCTING MATERIAL COPPER CONDUCTOR : Copper is the perfect Conducting material for overhead lines because of its high electrical conductivity and good tensile strength .But because of its high cost and unavailability, it is seldom used.

11. 2. ALUMINIUM CONDUCTOR : As compared to copper, Aluminium has very low conductivity and lower tensile strength. However, the main advantage of aluminium is that it is cheaper. Considering the various properties such as cost, conductivity and weight and tensile strength etc. Aluminium is widely used for heavy current transmission.

12. 3. AAC(ALL ALUMINIUM CONDUCTOR) AAC is also referred as ASC (Aluminium Standard Conductor).it is made up of stands of of EC grade or electrical grade aluminium. AAC conductor has conductivity almost 61% IACS(International Annealed Copper standard).AAC has limited use in Transmission & Distribution lines .

13. 4. ACAR(ALUMINIUM CONDUCTOR ALOY REINFORCED) It is formed by concentrically standard wire of aluminium 1350 or high strength Aluminium-Magnesium-Silicon alloy core.The number of wires of Aluminium 1350 & aluminium-magnesium-silicon alloy depend on the cable design. These conductor are extensively used in overhead transmission and distribution lines.

14. 5. AAAC(ALL ALUMINIUM ALLOY CONDUCTOR) These conductor are made from aluminium alloy 6201 which is a high strength aluminium-magnesium-silicon alloy. This alloy conductor offer good electrical conductivity (about 52.5% IACS) with better mechanical strength. AAAC may be use for distribution purpurpose. However, it is not usually preferred for transmission

15. 6. ACSR(ALUMINIUM CONDUCTOR STEEL REINFORCED It is concentrically standard conductor with one or more layers hard drawn 1350-H19 aluminium wire on a galvanized steel wire core. ACSR conductor are recognised for their economy, dependability, favourable strength per weight ratio. It has both characteristics; light weight and good conductivity of aluminium with the high tensile strength

16. 7.ACCC (ALUMINIUM CONDUCTOR COMPOSITE CORE) ACCC is stand for aluminium conductor composite core.it is a concentrically standard conductor.This conductor is available with one or more layers in trapezoidal-shaped. ACCC conductor uses corbon fibre core that is 25% more stronger and 60% lighter as compared to the traditional steel core.With the help of trapezoidal shaped stands allow the conductor to increase its aluminium content by over 28%

17. 8. CADMIUM COPPER CONDUCTOR: If we add 1 or 2% Cadmium to pure copper, the tensile strength is increased by 50% and only 15% conductivity of the pure conductors is reduced. Hence Cadmium copper is very useful for long span.

18. 9. GALVANIZED STEEL CONDUCTORS The steel wire consists of high tensile strength and hence it is widely used for long spans of transmission line. However the resistance of conductor is large . That’s why it is widely used in rural areas where cost effectiveness is the main factor

19. TYPES OF CONDUCTOR Solid Conductor Hollow Conductor Stranded Conductor Bundle Conductor

20. TYPES OF ACSR TRANSMISSION LINE CONDUCTOR Dog Panther Zebra Moose

21. SAG CALCULATION The distance between the highest point of electric poles or towers and the lowest point of a conductor connected between two poles or towers.