Diversity Factor Formula

Diversity factor is defined as the ratio of the sum of individual demand to the max demand on the power station. The diversity factor (DF) is inversely related to the maximum demand (MD). A higher DF indicates that MD will be lower and thus the investment on the station will be lower. It is often desirable to obtain the DF as high as possible.

DF = Sum of individual max demand / Maximum demand of the whole station

Calculation Examples

Example 1: A hydroelectric power station powers 6 feeders having their individual demands 10, 20, 5, 3, 18, and 22 MW each. The overall maximum demand is 50 MW. Calculate the DF.

Solution:

Sum of individual maximum demands = 10 + 20 + 5 + 3 + 18 + 22 = 78 MW

From the DF equation DF = 78/50 = 1.56

Remember that diversity factor is always larger than 1.

Example 2: A thermal power plant is responsible to power 2 industrial consumers who have their maximum demands of 10 and 30 MW. It also supplies the municipal grid whose maximum demand is 15 MW.  The overall maximum demand is 35 MW. Find the DF

Solution:

Sum of individual demands = 10 + 30 + 15 = 55 MW

DF = 55/35 = 1.57

Other useful formulas:

2 thoughts on “Diversity Factor Formula

  • March 13, 2018 at 4:18 pm
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    What components does it takes to step down 133 kv to 11kv…. Its a very useful website continue Impacting teaching and empowering us with knowledge

    Reply
    • March 13, 2018 at 5:01 pm
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      Hy Justin, 113 kV to 11 kV is stepped down by using power transformers.

      Reply

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