How much total power loading will occur if four parallel lines are loaded with the following values: 50 MW, 200 MW, 200 MW, and 200 MW?

To determine the total power loading of the four parallel lines, you simply need to sum the individual power values of each line. The provided values are 50 MW, 200 MW, 200 MW, and 200 MW.

Calculating the total:

• Start with the first line: 50 MW

• Add the second line: 50 MW + 200 MW = 250 MW

• Add the third line: 250 MW + 200 MW = 450 MW

• Finally, add the fourth line: 450 MW + 200 MW = 650 MW

The total power loading for all lines working in parallel results in 650 MW.

Therefore, the total power loading from the four lines is 650 MW. The provided answer of 260 MW does not reflect the sum of the power loads for these lines.

The correct total of 650 MW aligns with a basic understanding of power summation in parallel systems, where loads are additive. Each line contributes its total independently, and when parallel, they combine to form the overall load. The knowledge of system loading is essential for a system operator, as it impacts grid reliability, stability, and capacity planning.

Hence, the appropriate claim regarding the total power loading is that