DC machines used to generate electricity are called alternators. Select one: True O False
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- How do we increase or decrease the generated voltage output in the operation of a factory finished Alternator?An alternator is a type of alternating current generator that is electromechanical. 1. True 2. False1. If the number of poles in a lap wound generator is doubled, then the generated emf will be a) double c) constant d) zero b) half
- What conditions must be met before two alternators can be paralleled together?An alternator has 8 poles. (a) At what speed must the machine be driven to develop 75 cycles? 40 cycles? (b) what frequency is developed if the speed is 1050 rpm? 1800 rpm?1. Smaller aircraft normally use these types of generators. Choose all the correct answers. 2. When the resistance in a DC resistive circuit increases, what happens to the circuit current?
- Create a short essay based on your own understanding and opinion about the question, “How does a dc generator work?”. Minimum of 150 words.Can you explain the given questions in an original way? Voltage (Voltage) Regulator Alternators without Excitation Machine (Constant Voltage Generators) Thyristor regulatorsWrite down construction of an alternator with help of diagram and write its principle of operation. Subject is Electrical Machines.
- Can V curve be plotted for an alternator. If yes then what is the difference between V curve of an alternator and V curve of a motor.5. A welder machine operates automatically as follows : 30A current in 10 seconds, 20A in 10 sec., 10A in 10 sec. And finally 30A for 20 sec. To complete one cycle. What the equivalent rms value over one cycle?The maximum amount of voltage is induced time(s) in 3600 of mechanical rotation for a single loop coil rotating between a north and south magnetic poles of a DC generator. a) one b) two c) four d) none of the above