• Skip to primary navigation
  • Skip to main content
  • Skip to primary sidebar

How Engineering Works

  • Home
  • About Us
  • Electrical Engineering
    • Interview Questions
  • Privacy Policy
  • Disclaimer
  • Contact Us
  • Blog

What is the need of synchronizing two different power sources?

January 8, 2018 by Hero

DWQA Questions › Category: (EE) Power System › What is the need of synchronizing two different power sources?
0 Vote Up Vote Down
Hero asked 3 years ago
2 Answers
0 Vote Up Vote Down
dvdff answered 3 years ago

The two systems are interconnected for achieving economy, reliability and security. If they are connected by a synchronous link (same voltage, phase sequence and frequency– AC link) then the frequency of the entire system has to be same under steady state. They can also be interconnected by an asynchronous link (HVDC back to back connection) where the frequencies could be different. 

0 Vote Up Vote Down
Kamal answered 3 years ago

When power sources are not synchronized , there are instances where there is a voltage difference at the same very node where the three sources are connected .Now Mr Kirchoff  told us that such a situation is theoretically impossible. What happens in reality is that there are currents formed that circulate to and fro from the power sources , and given the mag of voltage in your question the power dissipated by those currents will fry the coils and you don’t want that!

You are welcome to read more Important Interview Questions and MCQs.

Primary Sidebar

Related Questions

  • What are the different types of faults which occur in a power system? asked by admin
  • Why are there only 3-phase electrical power systems? why not 6-phase, 9-phase, 12-phase, or some other number of phases? asked by
  • Where is the return path for three phase current? asked by
  • Sequence of questions during opening and closing of a substation circuit? asked by admin

INTERVIEW QUESTIONS

MCQ or Objective





Recommended Post

MCQs on DC motor

MCQs on Engineering Materials

MCQs on Induction Motor

Electrical Engineering Interview Questions

Electric Power

Categories

  • Electrical Articles (19)
  • Electrical MCQ (75)
  • Electrical Questions (11)
  • Interviews Questions (7)
  • IQ Test (1)
  • Uncategorized (10)

About Us | Privacy Policy | Disclaimer

Copyright@2017-2021