Engine_2014 : Electricity - 503/2299
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| As shown in the illustrated electronic overload relay circuit, what is the functional purpose of potentiometer "R2"? |
| A) it is used to set the overcurrent trip setting of the overload relay |
| B) it is used to set the instantaneous trip setting of the overload relay |
| C) it is used to set the inverse-time function setting of the overload relay |
| D) it is used to protect the rectifier from thermal damage |
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Illustration EL-0046
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