Question
Download Solution PDFHow many windings are present in auto transformers?
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFThe correct answer is option 2
Auto-Transformer:
- An auto-transformer is a type of electrical transformer with only one winding
- .The “auto” prefix refers to the single coil acting alone (Greek for “self”) – not to any automatic mechanism.
- An autotransformer is similar to a two-winding transformer but varies in the way the primary and secondary winding of the transformer are interrelated.
- In an autotransformer, one single winding is used as the primary winding as well as the secondary winding.
- But in two windings transformers, two different windings are used for primary and secondary purposes.
- A circuit diagram of the auto-transformer is shown below
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.