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wat is the difference between rotor 1st stage fault and 2nd
stage fault?
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Answer Posted / imrakesh
Hi friend i m glad dat u came up with a question like dat .
i appreciate ur indepth study of power system .
well basically the rotor system of altenators are unearthed
due to which the single gound fault at the rotor doesnt
actually disturbs the rotor as there is no fault current ,
however if a second gorund to earth faukt develops then the
short circuit between the windings results as the fault
current gets a path to flow . the former is called the 1st
stage fault while the latter is called the 2nd stage fault.
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