Electrical Engineering XYZ MCQs
In which configuration power transfer-ability is higher:
- Horizontal configuration
- Triangular configuration
- Same in both configuration
- None of the above
Correct answer: 2. Triangular configuration
Explanation: In electrical power transmission, the triangular configuration generally refers to the delta connection (Δ), while the horizontal configuration typically refers to the star connection (Y). In a delta (Δ) configuration, the power transfer capability is higher compared to a star (Y) configuration.
This is because in a delta configuration, each load is directly connected across a phase, allowing the full line voltage to be applied across each load. In contrast, in a star configuration, the loads are connected between the phases and the neutral, resulting in a lower voltage across each load compared to the line voltage.
Therefore, the triangular configuration (delta connection) has higher power transfer capability compared to the horizontal configuration (star connection).