When two alternators are working in parallel, their load sharing depends on various factors such as their ratings, speed regulation, and the total load. In this scenario, we have two alternators rated 40 MVA and 60 MVA respectively, and a total load of 80 MW. Let's understand how load sharing between them will be achieved.


To calculate the load sharing between two alternators, we need to consider their ratings and speed regulation. The formula for load sharing is:

Load Sharing = (Rating of Alternator / Total Rating) x (1 + Speed Regulation)

Using the above formula, we can calculate load sharing for both alternators:

For 40 MVA Alternator:
Load Sharing = (40 / 100) x (1 + 0.05) = 0.42 or 42%

For 60 MVA Alternator:
Load Sharing = (60 / 100) x (1 + 0.05) = 0.63 or 63%

Therefore, the load sharing between 40 MVA and 60 MVA alternators will be 42% and 63% respectively.


The load sharing between two alternators depends on their ratings and speed regulation. In this scenario, the 60 MVA alternator has a higher rating than the 40 MVA alternator, which means it can handle more load. So, it will take a higher share of the total load.

Moreover, the 60 MVA alternator has a higher speed regulation of 5% compared to the 40 MVA alternator, which means it can maintain its voltage and frequency more accurately. So, it will take a higher share of the load to maintain the system's stability.

Therefore, load sharing between two alternators depends on various factors, and it can be calculated using the above formula.

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