MCQ Subject: Power Systems & Transmission

Why are high voltages used for long-distance power transmission?

An unloaded transmission line experiences a voltage rise at the receiving end primarily due to:

What is the primary objective of Economic Dispatch in power systems?

In a high-voltage transmission line, the power transfer (P) can be expressed as a function of voltage (V), current (I), and power factor (cosθ). Which formula correctly represents the power transfer when the current and power factor are known?

The primary factor distinguishing the classification of transmission lines into short, medium, and long is based on:

A 400 kV transmission line replaces a 132 kV line for the same power over a long distance. The primary economic advantage is:

The primary reason for transmitting power at high voltages is to:

In power systems, which type of voltage regulation involves using the load voltage as feedback to adjust the generator field current?

In power transmission line design, which parameter determines the line’s ability to withstand fault currents without damaging the insulation?

In power systems, which type of compensation is primarily used in long transmission lines for voltage regulation by providing or absorbing reactive power?