Mathematics · Electrical Machines
When a rated load with 0.8 lagging power factor is supplied, the terminal voltage of a three-phase star-connected alternator is 6600 V (line-to-line value). With the same excitation, the voltage developed on open circuit is 7154 V (phase value). What will be the percentage voltage regulation of the alternator?
- 187.8%✓
- 2-46.7%
- 314.54%
- 446.7%
Correct answer
87.8%
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!
Preparing for Mathematics?
Practice full-length mock tests with real exam timers, instant score analysis, and all-India ranking.
Want more practice questions on Electrical Machines?
Solve complete topic-wise tests with detailed solutions on GkGet.
Related Practice Questions
Recommended practice questions in Mathematics · Electrical Machines