Referring to the illustration pertaining to...

Question 1 / 2066636eed28f7522a1c51d9b5

Question 1 of 2066636eed28f7522a1c51d9b5

Referring to the illustration pertaining to an alternator protection and alarm system, what statement is true concerning the component labeled "LO"? Illustration EL-0067

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Question 1 of 20

66636eed28f7522a1c51d9b5

Referring to the illustration pertaining to an alternator protection and alarm system, what statement is true concerning the component labeled "LO"? Illustration EL-0067

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🔍 Key Concepts

• Follow the fault trip signal paths from OCIT/OC/NPS, RP, and UV/OV/UF/OF into the block labeled LO. • Think about what a master lock‑out or lock‑out relay does in an alternator protection scheme compared with a simple pressure switch. • Note where mechanical/engine protections (like lube oil pressure) are usually shown versus where electrical protections are grouped in a generator one‑line diagram.

💭 Think About

• Is the component labeled LO receiving inputs from several different electrical protection devices, or is it connected to a lube oil system? What does that suggest about its function? • If a device trips the generator circuit breaker and sends a signal to the alarm system for a variety of electrical faults, what kind of relay or function is it likely to be? • Which answer choices talk about mechanical/prime mover protection and which refer to an electrical fault trip / lock‑out device? How does the drawing group these functions?

✅ Before You Answer

• Verify whether any lube oil lines, pumps, or pressure symbols are shown connected to LO in the diagram. • Check that the signals feeding LO are all from electrical protective relays (overcurrent, reverse power, under/over voltage, under/over frequency, etc.). • Confirm which answer choice best matches a device that provides a common trip and alarm for multiple electrical fault conditions on the alternator.

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Question 1 of 20

Referring to the illustration pertaining to an alternator protection and alarm system, what statement is true concerning the component labeled "LO"? Illustration EL-0067

LO is an alternator bearing low lube oil pressure safety shutdown and alarming device.

LO is an alternator prime mover low lube oil pressure safety shutdown and alarming device.

LO is an alternator phase loss safety shutdown and alarming device.

LO is an alternator electrical fault trip master lock-out and alarm device.

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Question 1 / 2066636eed28f7522a1c51d9b5

Question 1 of 2066636eed28f7522a1c51d9b5

Referring to the illustration pertaining to an alternator protection and alarm system, what statement is true concerning the component labeled "LO"? Illustration EL-0067

Back

Question 1 of 20

66636eed28f7522a1c51d9b5

Referring to the illustration pertaining to an alternator protection and alarm system, what statement is true concerning the component labeled "LO"? Illustration EL-0067

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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