GETCO Exam Paper (30-11-2008)
If a power system is transiently stable, it

is always dynamically stable
may be dynamically unstable
will oscillate beyond the first swing
both (a) & (c )

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GETCO Exam Paper (30-11-2008)
A buchholz will operate in a transformer whenever there is

any of the above
saturation of magnetic circuit
large internal fault
over load

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