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Question 1 of 2066636eed28f7522a1c51d9cc

Referring to the illustration of a twin-screw diesel-electric AC propulsion drive system, concerning the various control pulse signals, what statement is true? Illustration EL-0168

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Question 1 of 20

66636eed28f7522a1c51d9cc

Referring to the illustration of a twin-screw diesel-electric AC propulsion drive system, concerning the various control pulse signals, what statement is true? Illustration EL-0168

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🔍 Key Concepts

• Relationship between motor current and torque in AC propulsion motors • How supply frequency affects speed of a synchronous AC motor (N = 120 f / P) • Roles of the current control pulse signal to the rectifier and the frequency control pulse signal to the inverter in the illustration

💭 Think About

• Looking at the diagram, which control pulse is sent toward the part of the system that determines how strong the motor’s magnetic field and shaft turning force are? • For a synchronous AC propulsion motor, what electrical quantity must be changed to vary its shaft RPM, and which labeled control pulse in the figure is tied to that quantity? • Which option pairs "current" and "frequency" with the effects (torque, speed, power factor) in a way that matches what you know about AC motor behavior?

✅ Before You Answer

• Confirm that torque in an AC motor is primarily tied to current, not frequency or power factor directly. • Confirm that speed of a synchronous AC motor is primarily tied to supply frequency, not current. • From the illustration, verify which control pulse (current vs frequency) goes to which part of the synchrodrive converter and match that to its physical effect on the motor.

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Question 1 of 2066636eed28f7522a1c51d9cc

Referring to the illustration of a twin-screw diesel-electric AC propulsion drive system, concerning the various control pulse signals, what statement is true? Illustration EL-0168

Back

Question 1 of 20

66636eed28f7522a1c51d9cc

Referring to the illustration of a twin-screw diesel-electric AC propulsion drive system, concerning the various control pulse signals, what statement is true? Illustration EL-0168

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

👋 Hi! I'm Genie, your AI study assistant. How can I help you with this question?

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