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Protection Of Alternators

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sazxc | 08:44 Thu 27th Aug 2020 | Technology
7 Answers
A 10 MVA, 11 kV, 3-phase star-connected alternator is protected by the Merz-Price balance-current
system, which operates when the out-of-balance current exceeds 20% of full-load current. Determine
what portion of the alternating winding is unprotected if the star point is earthed through a resistance of
9 . The reactance of the alternator is 2 .


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No idea, sorry don't help with homework.
Nor me, especially when so phrased.
Until at
Your question appears to be from a test for a Student of Electrical Engineering for which you are seeking someone to give you an answer.

Please correct me if I am wrong and kindly tell me why you are faced with the 'down to earth' problem.

Just maybe the OP needs to put his hand in his pocket. The question is listed verbatim on numerous student orientated websites but the answer in each case looks like it sits behind a pay wall!
@bigbanana.... IMO...You are 100% correct.

I could mention a site that for $14.95 the answer would be revealed.
However, I refrain, if possible, from unauthorised advertising on Answerbank.


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