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

Question 1 / 205eccefa4bacbc34ba4d482c8

Question 1 of 205eccefa4bacbc34ba4d482c8

As shown in figure "B" of the illustration, the self-test of the OCR performance is applied with a setting of 6 times the full load current and a trip time of 10 seconds is observed, which agrees with the manufacturers current/time characteristics. According to figure "C" of the illustration, under actual operation, how long would the trip time be if the motor was drawing 3 times the full load amperage due to a mechanical overload? See illustration EL-0172.

Back

Question 1 of 20

5eccefa4bacbc34ba4d482c8

No comments yet

Be the first to share your thoughts!

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

🔍 Key Concepts

• Carefully read the current-time characteristic curves in figure C for different time settings (5 s, 10 s, 20 s). • Understand that the self-test at 6 × FLC with a 10-second setting is just one point on the 10-second curve. • Recognize that at a lower multiple of full-load current (like 3 × FLC), the same 10-second setting will trip more slowly according to the curve.

💭 Think About

• On the 10-second curve in figure C, what happens to trip time as you move left from 6 × FLC down to 3 × FLC? • Roughly where does the 3 × FLC vertical line intersect the 10-second setting curve, and what time value does that correspond to on the vertical axis? • How do the times at 3 × FLC compare between the 5 s, 10 s, and 20 s curves—does that help you narrow down the closest answer choice?

✅ Before You Answer

• Be sure you are following the 10-second setting curve, not the 5-second or 20-second curve. • Confirm you are reading the horizontal axis as multiples of full-load current (× FLC) and the vertical axis as time (seconds and minutes). • Estimate the time at the intersection point carefully and compare it with the provided options to pick the closest value.

👋 Hi! I'm Genie, your AI study assistant. How can I help you with this question?

Quick actions

— No credit card needed

Question 1 of 20

5 seconds

10 seconds

15 seconds

25 seconds

Loading interactive features...

Question 1 / 205eccefa4bacbc34ba4d482c8

Question 1 of 205eccefa4bacbc34ba4d482c8

Back

Question 1 of 20

5eccefa4bacbc34ba4d482c8

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