LIVE Course for free

Rated by 1 million+ students
Get app now
Class 8 Foundation Course
Class 9 Foundation Course
Class 10 Foundation Course
Class 11 Foundation Course
Class 12 Foundation Course
0 votes
in General by (30.0k points)
closed by
Oil is invariably used in large transformers to
1. Lubricate the core
2. Insulate the core
3. Lubricate the coils
4. Provide fuel for operation

1 Answer

0 votes
by (54.0k points)
selected by
Best answer
Correct Answer - Option 2 : Insulate the core

Transformer oil:

  • Transformer oil works in two ways first it is insulation in electrical power transformer and second, it dissipates the heat of the transformer i.e. acts as a coolant
  • Transformer oil is normally obtained by fractional distillation and subsequent treatment of crude petroleum
  • It prevents corrosion of the internal components and tank


Characteristics of transformer oil:

1) High dielectric breakdown

2) Low viscosity

3) Free from moisture

4) Low pour point

5) Low flashpoint

Welcome to Sarthaks eConnect: A unique platform where students can interact with teachers/experts/students to get solutions to their queries. Students (upto class 10+2) preparing for All Government Exams, CBSE Board Exam, ICSE Board Exam, State Board Exam, JEE (Mains+Advance) and NEET can ask questions from any subject and get quick answers by subject teachers/ experts/mentors/students.