Задание 1 к текстам DC Generators, AC Generators
Ответьте на вопросы:
- How does the current in the armature move if it revolves between two stationary field poles?
- What should be done to produce a steady flow of direct current from generator?
- Is in older machines the flow of direct current provided by means of a commutator?
- Is there a flow of unidirectional current in the outside circuit to which the generator is connected?
- Are DC generators usually operated at fairly low voltages?
- Why DC generators usually operate at low voltages?
- Do drum armatures usually consist of a large number of windings?
- Why the fields of modern generator equipped with four or more electromagnetic poles?
- 9. How DC generators are commonly classified?
- Is the series-wound generator used mainly to supply a constant current at variable voltage?