2018-19
- Differentiate between stability and instability.
- On what factor does maximum power transfer depend?
- What is transient stability? Describe different methods of improving transient stability of a power system.
- Explain equal area criterion for stability by taking a suitable example of power system.
2017-18
- Show that the steady state power which could be transmitted over a transmission line will be maximum when R, where X and R have their usual meaning.
- Explain equal-area criterion for the stability of an alternator supplying infinite busbar via an inductive interconnector.
2016-17
- Define inertia constant of a synchronous machine and write the unit for inertia constant.
- Write the power angle equation of a synchronous machine connected to an infinite bus.
- Explain the inertia constant and swing equations. Explain the terms swing curves in power system stability.
- Discuss the factors which affect transient state stability of a power system.
- Write short notes any two of the following: (i) Synchronous machine (ii) Doubling Effect (iii) Transmission lines.