When paralleling two AC generators, the...

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Question 1 of 205eccefa4bacbc34ba4d481c5

When paralleling two AC generators, the synchroscope selector switch and frequency meter switch should be set up to sense the frequency of which of the following?

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5eccefa4bacbc34ba4d481c5

When paralleling two AC generators, the synchroscope selector switch and frequency meter switch should be set up to sense the frequency of which of the following?

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🔍 Key Concepts

• Paralleling AC generators requires matching three things: voltage, frequency, and phase sequence. • A synchroscope compares the frequency and phase of two AC sources: one is the reference, the other is the one being adjusted. • Think about which machine you are actually adjusting when you bring a second generator online.

💭 Think About

• When you are about to close the breaker to parallel a second generator, which generator’s speed (and therefore frequency) are you changing with the governor control? • Does the bus frequency change significantly while you are preparing to parallel, or is it held steady by the generator already on the line? • Is the synchroscope meant to show the condition of the system already supplying power, or the one you’re trying to match to that system?

✅ Before You Answer

• Identify which generator is already carrying the bus and which is the incoming (oncoming) generator. • Confirm which side is treated as the reference (usually the one already on the bus) and which side is being matched to the reference. • Make sure you are clear that the instrument should sense the frequency of the source you are ADJUSTING, not the one that’s already stabilizing the bus.

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Question 1 of 205eccefa4bacbc34ba4d481c5

When paralleling two AC generators, the synchroscope selector switch and frequency meter switch should be set up to sense the frequency of which of the following?

Back

Question 1 of 20

5eccefa4bacbc34ba4d481c5

When paralleling two AC generators, the synchroscope selector switch and frequency meter switch should be set up to sense the frequency of which of the following?

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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