Electrical Engineering · Transformers
In a single-phase power transformer, what is the primary technical reason for opening the load switch prior to executing tap changes in the off-load tap changing method?
Verified Solution4 OptionsUpdated: October 2026👁️1 View
Share:
- 1To avoid heavy destructive electrical arcing and sparking at the contact points✓
- 2To prevent structural overheating of the core
- 3To transiently improve the voltage regulation
- 4To minimize copper winding losses
Correct answer
To avoid heavy destructive electrical arcing and sparking at the contact points
Download Single Question PDF
Save this question and verified answer as a clean study sheet with live clickable link.
👥
Share with Friends & Study Groups
Challenge your peer aspirants on WhatsApp or Telegram to solve this question!
Online Test Series
Preparing for Electrical Engineering?
Practice full-length Electrical Engineering mock tests with real exam timers, instant score analysis, and all-India ranking.
Chapter Practice
Practice Transformers MCQs →Want more practice questions on Transformers?
Solve complete topic-wise tests with detailed solutions on GkGet.
Related Practice Questions
Recommended practice questions in Electrical Engineering · Transformers