GETCO Exam Paper (30-11-2008) Power system A is operating in parallel with other systems and has a frequency bias of 50 MW/0.1 Hz. For a loss of generation in one of the interconnected systems resulting in a frequency drop of 0.02 Hz, system A should provide 30 MW support provide 20 MW of support provide 10 MW of support not be affected provide 30 MW support provide 20 MW of support provide 10 MW of support not be affected ANSWER DOWNLOAD EXAMIANS APP
GETCO Exam Paper (30-11-2008) Steady - state stability limit of a power system means that the system is capable of maintaining All of these the frequency at 50 Hz exactly a constant power flow throughout synchronism between machines and on external tie lines All of these the frequency at 50 Hz exactly a constant power flow throughout synchronism between machines and on external tie lines ANSWER DOWNLOAD EXAMIANS APP
GETCO Exam Paper (30-11-2008) Transient stability of a power system depends on the strength of transmission network All of these the short circuit ratio of generating units fault-clearing time the strength of transmission network All of these the short circuit ratio of generating units fault-clearing time ANSWER DOWNLOAD EXAMIANS APP
GETCO Exam Paper (30-11-2008) Dynamic stability characteristics are predominant in the period both (b) & (c ) immediately following a loss of load between the time the governors start reacting and when the steady-state stability is reached while governor is in action both (b) & (c ) immediately following a loss of load between the time the governors start reacting and when the steady-state stability is reached while governor is in action ANSWER DOWNLOAD EXAMIANS APP
GETCO Exam Paper (30-11-2008) If a power system is transiently stable, it is always dynamically stable may be dynamically unstable both (a) & (c ) will oscillate beyond the first swing is always dynamically stable may be dynamically unstable both (a) & (c ) will oscillate beyond the first swing ANSWER DOWNLOAD EXAMIANS APP
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