Referring to the illustration of a...

Question 1 / 2066636eed28f7522a1c51d9cc

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 20

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

The current control pulse signal controls motor power factor, and the frequency control pulse signal controls motor rotational speed.

The current control pulse signal controls motor rotational speed, and the frequency control pulse signal controls motor torque.

The current control pulse signal controls motor torque, and the frequency control pulse signal controls motor power factor.

The current control pulse signal controls motor torque, and the frequency control pulse signal controls motor rotational speed.

Question 1 / 2066636eed28f7522a1c51d9cc

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?

Quick actions

— No credit card needed