Motors & Generators

motors-generators

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172180

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A compound wound DC generator has a combination of shunt and _____ characteristics, depending on the predominance of each type of winding.

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172181

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In a series wound DC generator:

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172182

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The voltage produced in each phase of a three phase generator is displaced by _____ electrical degrees from the other phases:

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172183

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Which of the following is NOT a requirement for synchronizing alternators?

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172184

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Alternators are constructed to use slip rings made of brass or:

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172185

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The rotating field of an alternator is produced by applying _________ to the rotor with:

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172186

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The connection provided on DC motors to supply the armature with power:

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172187

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Synchronous motors have construction that is identical to:

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172188

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Brush gear for DC machines have brushes made from carbon because:

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172189

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The _____ of a DC machine is built up of laminated steel plates mounted on a shaft. The coils are connected to a commutator mounted on one end of the rotor shaft.

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172190

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The electromagnetic field for a DC machine is termed the

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172191

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There are three main types of DC generators; series, shunt and compound wound. Each is

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172195

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Alternators must run at constant speed in order to maintain

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172196

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The output voltage of a shunt dc generator may be varied by adjusting the

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172198

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The armature core of a DC machine is built up of laminations of

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