(a) A generator is transferring power to a load through a short line.…
Previous year question for Power System-III.
Question
(a) A generator is transferring power to a load through a short line. The power angle equation is $P = P_m \sin \delta$.The initial power is $P_i P_u$ when a 3-phase fault occurs at the terminals of generator.
(i) Use equal area criterion to find equation for critical clearing angle and critical clearing time.
(ii) Find critical clearing angle and critical clearing time if $P_m = 2 \text{ pu}$, $P_i = 1 \text{ pu}$, $H = 6 \text{ MJ/MVA}$, $f = 50 \text{ Hz}$
(b) Discuss the steady state stability, dynamic stability and transient stability.
- Year: 2018
- Subject: Power System-III