Dear Muhammed,
sorry, that was confusing. I didn't mean series connection in the electrical sense. But the four MVPS are connected in such a way that the segments between them carry different power. The first carries 1/4 of the total power, the second half, the third 3/4, and the last the total power.
We want to calculate the total losses of the mv line, both for the mv lines between the transformers and for the mv line between the last MVPS and the feed point.
Here are the lengths:
MVPS1-MVPS2: 0.431 km
MVPS2-MVPS3: 0.192 km
MVPS3-MVPS4: 0.369 km
MVPS4 - injection point: 7.84 km
Best regards