Chapter 13 - High Frequency Generators or Permanent Magnet Generator.

Question 1

Explain why AC Generators designs will not work for a high frequency Generator?

Answer 1

• With a conventional salient pole or cylindrical rotor any attempt to greatly increase the number of poles would lead to centrifugal force problems

Question 2

Explain How 1600 Hz Generator produces such a High Frequency Output?

Answer 2

• The Rotor is A Permant Magnet in 2 halves
• One half has North Pole Inductors
• The other half has South Pole Inductors
• The North & South Poles are Slightly missaligned which is set by the manufacturer/Operator.
• If the poles where perfectly aligned the resultant EMF would be zero.
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Question 3

List an application for a High Frequency Generator?

Answer 3

• The HF Generator is used to power the Hand or A.V.R for contolling the Main Generator output.