As shown in figure "A" of the illustration,...

Question 1 / 2707066636eee28f7522a1c51f31d

Question 1 of 2707066636eee28f7522a1c51f31d

As shown in figure "A" of the illustration, what statement is true concerning the voltage sensing unit? Illustration EL-0066

Back

Question 1 of 27070

As shown in figure "A" of the illustration, what statement is true concerning the voltage sensing unit? Illustration EL-0066

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

🔍 Key Concepts

• Automatic Voltage Regulator (AVR) operation in an AC generator • How a comparator works – it compares two DC levels (feedback vs. set point) • Purpose of a voltage sensing circuit – scaling and conditioning the generator output before it reaches the AVR electronics

💭 Think About

• Look at the illustration: what kind of signal does the comparator need in order to compare it with the "set" voltage adjustment – AC or DC? • If the alternator is producing 440 VAC, can that full value be applied directly to delicate electronic components, or must it first be reduced and conditioned? • Does the voltage sensing block seem to be taking three‑phase AC and producing a single processed signal? What type and approximate magnitude would that most likely be?

✅ Before You Answer

• Verify whether the comparator is typically used with DC levels or raw three‑phase AC in AVR circuits. • Consider whether the voltage sensing stage should provide a signal proportional to the alternator voltage or equal in magnitude to it. • Confirm from the figure whether the sensing circuit output is likely a low‑level conditioned signal suitable for electronic comparison, rather than the full generator line voltage.

Question 1 of 27070

As shown in figure "A" of the illustration, what statement is true concerning the voltage sensing unit? Illustration EL-0066

The voltage sensor delivers an AC signal voltage equal in magnitude to the alternator output voltage to the comparator.

The voltage sensor delivers a relatively low value of DC signal voltage proportional to the alternator output voltage to the comparator.

The voltage sensor delivers a relatively low value of single phase AC signal voltage proportional to the alternator output voltage to the comparator.

The voltage sensor delivers a DC signal voltage equal in magnitude to the alternator output voltage to the comparator.

Question 1 / 2707066636eee28f7522a1c51f31d

Question 1 of 2707066636eee28f7522a1c51f31d

As shown in figure "A" of the illustration, what statement is true concerning the voltage sensing unit? Illustration EL-0066

Back

Question 1 of 27070

As shown in figure "A" of the illustration, what statement is true concerning the voltage sensing unit? Illustration EL-0066

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