As shown in the illustrated electronic...

Question 1 / 2066636eed28f7522a1c51db17

Question 1 of 2066636eed28f7522a1c51db17

As shown in the illustrated electronic overload relay circuit, what is the functional purpose of potentiometer "R2"? Illustration EL-0091

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Question 1 of 20

66636eed28f7522a1c51db17

As shown in the illustrated electronic overload relay circuit, what is the functional purpose of potentiometer "R2"? Illustration EL-0091

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🔍 Key Concepts

• Location and label of R2 in relation to the CT input, rectifier/diode bridge, and the rest of the timing circuitry • Difference between overload (inverse-time) protection and instantaneous protection in an electronic overload relay • How separate potentiometers in the diagram (R2 vs. the "Inst. Current Setting Pot." and the "Time Delay Setting Pot.") suggest different adjustment functions

💭 Think About

• Trace the current path from the CT input through R2 and the rectifier section: what value or signal would changing R2 actually affect? • Compare what part of the circuit is associated with time delay (look for capacitors and the "Time Delay Setting Pot.") versus what part simply scales the sensed current level. • Why would an overload relay need both an instantaneous setting and a long‑time/overload setting, and which labeled controls in the diagram appear to correspond to each?

✅ Before You Answer

• Identify which component in the diagram is explicitly labeled as the Instantaneous Current Setting Pot. and compare its position to R2 • Check which potentiometer is directly associated with the Time Delay label and timing capacitor(s) and confirm whether that is R2 or a different pot • Confirm whether R2 is in the part of the circuit that shapes the current threshold into the detector, or in the part that shapes the time delay response

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Question 1 of 20

As shown in the illustrated electronic overload relay circuit, what is the functional purpose of potentiometer "R2"? Illustration EL-0091

it is used to set the inverse-time function setting of the overload relay

it is used to set the overcurrent trip setting of the overload relay

it is used to protect the rectifier from thermal damage

it is used to set the instantaneous trip setting of the overload relay

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Question 1 / 2066636eed28f7522a1c51db17

Question 1 of 2066636eed28f7522a1c51db17

As shown in the illustrated electronic overload relay circuit, what is the functional purpose of potentiometer "R2"? Illustration EL-0091

Back

Question 1 of 20

66636eed28f7522a1c51db17

As shown in the illustrated electronic overload relay circuit, what is the functional purpose of potentiometer "R2"? Illustration EL-0091

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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