Electrical Stranded Conductors

Stranded conductors are very much popular in electrical power system for transmission and distribution line. A stranded conductor is consists of several thin wires of small cross sectional area called strands as shown in figure below- As shown in figure above, at the center of stranded conductor, we are using steel conductor which provided the … Read more

Materials Used for Transmission Line Conductor

Transmission line is an important part of power system. The cost and life of transmission line primarily depend on the material used for making conductor for transmission line. The most important and much suitable material for conductor of transmission line is copper as it having high conductivity and high tensile strength. More ever it is … Read more

Electrical Engineering Materials

Materials are the part of our life and daily works since ancient time. Materials are the primary part of all things surrounding us. In fact some materials have given the name to various ages in human history i.e. Stone Age, Bronze Age, Iron Age, Synthetic Materials Age, Smart Materials Age. The study of these materials … Read more

Classification of Electrical Engineering Materials

Materials used in the field of Electrical Engineering are called the Electrical Engineering materials. Based on properties and area of applications, Electrical Engineering materials can be classified as below- Conductors Semiconductors Insulators Magnetic material A classification chart of electrical engineering materials is shown in figure below Conductors Conductors are the materials which have very high … Read more

Factors Effecting the Resistivity of Electrical Materials

Factors effecting the resistivity of electrical materials are listed below – Temperature. Alloying. Mechanical stressing. Age Hardening. Cold Working. Temperature The resistivity of materials changes with temperature. Resistivity of most of the metals increase with temperature. The change in the resistivity of material with change in temperature is given by formula given below- Where, ρt1 … Read more

Classification of Electrical Conducting Materials

Electrical conducting material are the basic requirement for electrical engineering products. The electrical conducting material can be classified as below- Based on Resistivity or Conductivity Low resistivity or high conductivity conducting material High resistivity or Low conductivity conducting material A classification chart of conducting materials based on resistivity or conductivity is shown in figure below- … Read more

Low Resistivity or High Conductivity of Conducting Material

Material having low resistivity or high conductivity are very useful in electrical engineering for manufacturing electrical engineering machines or equipment’s. These material used as conductors for all kind of winding required in electrical machines, apparatus and devices. These material are also used as conductor in transmission and distribution of electrical energy. Required Properties in high … Read more

High Resistivity or Low Conductivity Conducting Material

Materials having high resistivity or low conductivity are very useful for some electrical engineering products and applications. These material are used to manufacture the filaments for incandescent lamp, heating elements for electric heaters and furnaces, space heaters and electric irons etc. Required Properties in High Resistivity or Low Conductivity Conducting Material The following properties are … Read more

Electrical Conductor

Electrical conductor is a substance or material that allows electrons to flow atom to atom of that material with drift velocity in the conduction band against a small resistance offered by that substance. Electrical Conductor may be metals, metal alloy, electrolyte or some non metals like graphite and conductive polymer. How a Conductor Conducts Current? … Read more

Selection of Materials Used for Electrical Contacts

Materials used for Electrical Contacts, play an important role in the performance of electrical machines and equipment. Hence, it becomes quite important to select a suitable material for electrical contacts. The successful operation of electrical contacts for a specific application, is a function of various factors. While selecting a suitable material for electrical contact, we … Read more