Question
Download Solution PDFThe cable rating suitable for connecting the load of 3 kW to a single phase supply of 230 V is _________.
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFThe correct answer is option 1):(15 A)
Concept:
The power rating
P = V I cos ϕ
where
V is the voltage
I is the current
Calculation:
P = 3 × 1000 W
V = 230 V
3 × 1000 = 230 × I
I = \( 3 \times 1000 \over 230\)
= 13.043 A
The cable rating suitable for connecting a load of 3 kW to a single-phase supply of 230 V is 15 A
Last updated on May 29, 2025
-> SSC JE Electrical 2025 Notification will be released on June 30 for the post of Junior Engineer Electrical/ Electrical & Mechanical.
-> 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.