Previous Year Question
In a power system, the demand factor is the ratio of the:
Correct answer: A
Explanation
Demand factor compares the maximum demand actually imposed by an installation with the total connected load. Because not all connected equipment is normally at full load simultaneously, demand factor is usually less than or equal to one.
Formula
Demand factor = Maximum demand / Connected load
Step-by-step solution
Correct Answer
A — maximum demand to total connected load
Explanation
Demand factor compares the maximum demand actually imposed by an installation with the total connected load. Because not all connected equipment is normally at full load simultaneously, demand factor is usually less than or equal to one.
Key Concept
Maximum Demand / Connected Load
Formula
Demand factor = Maximum demand / Connected load
Exam Point
Demand factor ≤ 1.
Exam tip
Demand factor ≤ 1.
Quick method
Demand factor ≤ 1.