Assuming the alternator shown in figure "A"...

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Question 1 of 2066636eed28f7522a1c51d351

Assuming the alternator shown in figure "A" of the illustration is equipped with a diode plate as configured in figure "D", what is the purpose of the diode plate? Illustration EL-0037

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Question 1 of 20

66636eed28f7522a1c51d351

Assuming the alternator shown in figure "A" of the illustration is equipped with a diode plate as configured in figure "D", what is the purpose of the diode plate? Illustration EL-0037

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🔍 Key Concepts

• Brushless excitation system in large AC alternators • Function of a rotating rectifier (diode) assembly connected to the exciter armature • Difference between rectifying AC to DC and inverting DC to AC in generator systems

💭 Think About

• Look at figure D: Are the diodes mounted on the rotor or the stator, and what does that imply about the need for brushes? • In a brushless alternator, what kind of current must flow in the main field winding on the rotor: AC or DC? • What type of current is produced in the exciter armature, and what must be done to that current before it can be used for the main field?

✅ Before You Answer

• Verify whether the exciter armature output is AC or DC in this design. • Decide whether diodes are normally used to rectify AC to DC or to invert DC to AC in power systems like this. • Check which of the answer choices are consistent with eliminating brushes when the rectifier/diodes are mounted on the rotating assembly.

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Question 1 of 2066636eed28f7522a1c51d351

Assuming the alternator shown in figure "A" of the illustration is equipped with a diode plate as configured in figure "D", what is the purpose of the diode plate? Illustration EL-0037

Back

Question 1 of 20

66636eed28f7522a1c51d351

Assuming the alternator shown in figure "A" of the illustration is equipped with a diode plate as configured in figure "D", what is the purpose of the diode plate? Illustration EL-0037

No comments yet

Be the first to share your thoughts!

If the question has a related picture, it will appear here.

🔍 Key Concepts

💭 Think About

✅ Before You Answer

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