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

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

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

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

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