Steady-state
stability of a power system is the ability of the power system to
Maintain
voltage at the rated value
Maintain
frequency at rated value
Maintain
a spinning reserve margin all the times
Maintain synchronism
Maintain synchronism
Steady
state stability of a power system is the ability of power system to maintain
synchronisr between machines and external lines.
Steady
state stability studies are restricted to small and gradual changes in the
system operating conditions.
Hence,
the correct option is (D).
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