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Two transmission lines are connected in parallel. On one of the transmission lines, a buck-boost transformer is connected. Which part of the complex power can be controlled?

Answer :

Final answer:

The part of complex power that can be controlled is the reactive power.

Explanation:

When two transmission lines are connected in parallel and a buck-boost transformer is connected to one of the lines, the part of complex power that can be controlled is the reactive power.

Complex power is made up of two components: real power, which is the power that is consumed or supplied to the electrical load; and reactive power, which is the power that is exchanged between the lines or stored in the electrical components. By adjusting the buck-boost transformer, the reactive power can be controlled, leading to a more balanced distribution of power and improving the overall efficiency of the system.

For example, if the system has a high amount of reactive power, the buck-boost transformer can be adjusted to reduce it, resulting in reduced line losses and voltage drops.

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