DGVCL Exam Paper (11-12-2011)
The main advantage of using fractional pitch winding is to refuce

Amount of copper in the winding
Cost of the machine
Size of the machine
Harmonics in the generated emf

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DGVCL Exam Paper (11-12-2011)
Buchholz relay causes

Tripping for both major and minor faults
Tripping for major faults and alarm for minor faults
Tripping for minor faults and alarm for major faults
Alarm for both major and minor faults

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