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

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Question 1 of 2066636eed28f7522a1c51dae1

As shown in figure "A" of the illustration, what type of ground fault detection system is illustrated? Illustration EL-0132

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Question 1 of 20

66636eed28f7522a1c51dae1

As shown in figure "A" of the illustration, what type of ground fault detection system is illustrated? Illustration EL-0132

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🔍 Key Concepts

• Compare figure A and B and note which one actually uses a ring (core-balance) current transformer around the phase conductors • Look closely at how the circuit in A connects to the system neutral/ground and what is being measured (voltage/ current through a resistor) • Recall what a lamp-type ground detector looks like (number of lamps, where they are connected) versus a current transformer scheme

💭 Think About

• In figure A, ask yourself: is any device encircling all three phase conductors, or is the detection done by measuring current or voltage from the system to ground? • Which of the four answer types would typically use a high‑resistance connection to ground with a meter and alarm relay? • Which type in the list would most likely be shown in figure B, and therefore is NOT the one used in figure A?

✅ Before You Answer

• Identify whether figure A shows any lamps in series across phases to neutral/ground (typical of lamp‑type detectors) • Check if the drawing shows a current transformer symbol around all three phase lines (typical of core‑balance protection) – is that really present in A or only in B? • Confirm whether the device in A is injecting a separate DC source into the system, or simply using the existing AC system voltage through a resistor (current limiter) to ground with a meter/relay

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Question 1 of 2066636eed28f7522a1c51dae1

As shown in figure "A" of the illustration, what type of ground fault detection system is illustrated? Illustration EL-0132

Back

Question 1 of 20

66636eed28f7522a1c51dae1

As shown in figure "A" of the illustration, what type of ground fault detection system is illustrated? Illustration EL-0132

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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