Process Engineering Division – Instrumentation and Automation Section – Daily Topics – Topic No. 2020-12-26
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Process Engineering Division – Instrumentation and Automation Section – Daily Topics – Question No. 2020-12-26: Discussion topic: 338. The differential gain of the positive differential regulator is 6, and the differential time scale is 60 seconds. Assuming that the output is 0% at the initial stage, what value should the output reach when the signal changes by 10%? (5 points will be given to those who provide the correct answer only; additional points will be awarded for a correct calculation process or detailed explanation.)
The differential gain of the positive differential regulator is 6, with a differential scale of 60 seconds. Assuming that the output is 0% at the initial stage, what will be the output value when the signal changes by 10%? Solution: When the signal changes by 10%, the output = 6*10% = 60%. Answer: When the signal changes by 10%, the output should step to 60%.
When the signal changes by 10%, the output = 6*10% = 60%.
Differentiation first; the output = K*P + 1/TD*P, and it should be greater than 60%
When the signal changes by 10%, the output = 6*10% = 60%.
When the signal changes by 10%, the output = 6*10% = 60%.
When the signal changes by 10%, the output = 6*10% = 60%.
When the signal changes by 10%, the output = 6*10% = 60%.