Fleming's right-hand rule regarding direction of induced e.m.f., correlates
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Electrical Engineering · all questionsD.C. Generators
D.C. Generators
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Compensating windings are used in D.C. generators
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Flashing the field of D.C. generator means
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In a separately excited generator supplying rated load the armature reaction:
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If a D.C. generator fails to build up the probable cause could not be
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D.C. generators are connected to the bus-bars or disconnected from them only under the floating condition
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Two generators are running in parallel. One of the generators may run as motor for which of the following reasons?
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The function of pole shoes in the case of D.C. machine is
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In case of a 4 pole D.C. generator provided with a two layer lap winding with sixteen coils, the pole pitch will be
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For the parallel operation of two or more D.C. compound generators, we should ensure that
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For a D.C. generator when the number of poles and the number of armature conductors is fixed, then which winding will give the higher e.m.f.?
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In any rotating machine that part which houses the conductors and in which e.m.f. induced is to be utilised is called
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In any rotating machine that part which houses the conductors and in which e.m.f. induced is to be utilized is called
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The resistance of armature winding depends on
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A D.C. welding generator has
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Iron losses in a D.C. machine are independent of variations in
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In a shunt generator the voltage build up is generally restricted by
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The series field of a short-shunt D.C. generator is excited by
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D.C. series generator is used
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Which of the following D.C. generators will be in a position to build up without any residual magnetism in the poles ?
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