Question
Download Solution PDFThe power factor of a spot welding machine is expected to be around:
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFSpot welding:
- It is used primarily for welding two or more metal sheets together by applying pressure and heat from an electric current to weld area.
- It works by contacting copper alloy electrodes to the sheet surfaces, whereby pressure and electric current are applied and heat is generated by the passage of current through resistive materials such as low carbon steels.
In Spot Welding:
Voltage = less than 8 V.
Current = 5000 Amp.
Power Factor = 0.3 – 0.5 lagging
Ex. Welding of a car body.
Last updated on May 9, 2025
-> PGCIL Diploma Trainee result 2025 will be released in the third week of May.
-> The PGCIL Diploma Trainee Answer key 2025 has been released on 12th April. Candidates can raise objection from 12 April to 14 April 2025.
-> The PGCIL DT Exam was conducted on 11 April 2025.
-> Candidates had applied online from 21st October 2024 to 19th November 2024.
-> A total of 666 vacancies have been released.
-> Candidates between 18 -27 years of age, with a diploma in the concerned stream are eligible.
-> Attempt PGCIL Diploma Trainee Previous Year Papers for good preparation.