Question
Download Solution PDFThe volume of copper required for an AC transmission line is:
I. proportional to the voltage
II. proportional to power factor
III. inversely proportional voltage and proportion to current
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFConcept:
Let, P = Transmitted power
V = Line voltage in volts
cosϕ = Power factor
l = Length of the line
R = Resistance
ρ = Resistivity
A = Cross-sectional area
Consider the transmission of electric power by a three-phase line.
The total power loss is given by:
Volume
Therefore, the volume of copper required for an AC transmission line is inversely proportional to voltage and proportion to the current.
Last updated on Jul 1, 2025
-> SSC JE Electrical 2025 Notification is released on June 30 for the post of Junior Engineer Electrical, Civil & Mechanical.
-> There are a total 1340 No of vacancies have been announced. Categtory wise vacancy distribution will be announced later.
-> Applicants can fill out the SSC JE application form 2025 for Electrical Engineering from June 30 to July 21.
-> SSC JE EE 2025 paper 1 exam will be conducted from October 27 to 31.
-> Candidates with a degree/diploma in engineering are eligible for this post.
-> The selection process includes Paper I and Paper II online exams, followed by document verification.
-> Prepare for the exam using SSC JE EE Previous Year Papers.