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I applied via Campus Placement and was interviewed in Jul 2024. There was 1 interview round.
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Introduction
About General knowledge Electrical related
Projects, HT< line
posted on 25 Apr 2024
I applied via campus placement at LD College of Engineering, Ahmedabad and was interviewed before Apr 2023. There were 2 interview rounds.
Quantitative and Electrical Engineering Questions
The power system is a network of electrical components used to generate, transmit, and distribute electricity.
Includes power generation, transmission, distribution, and utilization
Consists of power plants, transformers, substations, transmission lines, and distribution lines
Involves AC and DC power systems
Utilizes various protection and control systems to ensure reliability and safety
Examples: hydroelectric power syste...
Transformer type can be identified by checking the winding configuration, core type, and cooling method.
Check the winding configuration - transformers can be either step-up, step-down, or isolation transformers.
Identify the core type - transformers can have either core-type or shell-type construction.
Determine the cooling method - transformers can be air-cooled, oil-cooled, or water-cooled.
Check for any markings or lab
Types of cables include coaxial, twisted pair, fiber optic, and ribbon cables.
Coaxial cable: used for cable television and internet connections
Twisted pair cable: commonly used for Ethernet networks
Fiber optic cable: transmits data using light signals
Ribbon cable: used for internal computer connections
A transformer is an electrical device that transfers electrical energy from one circuit to another through electromagnetic induction.
Transformers work on the principle of electromagnetic induction
They have two coils, primary and secondary, which are wound around a common magnetic core
When an alternating current flows through the primary coil, it creates a magnetic field which induces a voltage in the secondary coil
Tran...
Skin effect is the tendency of high-frequency current to flow near the surface of a conductor.
It occurs due to the self-inductance of the conductor.
It increases with frequency and decreases with the diameter of the conductor.
It can cause power loss and heating in high-frequency applications.
It is important to consider in designing high-frequency circuits and transmission lines.
Examples include radio antennas and high-f
The material used in a 1km Ht line depends on various factors such as voltage, weather conditions, and budget.
The voltage of the line determines the type of conductor material used, such as aluminum or copper.
Weather conditions can also affect the choice of material, with some materials being more resistant to corrosion or extreme temperatures.
Budget is also a factor, with some materials being more expensive than other...
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