Electrical Engineering MCQ
The preferred cooling method for large turbine generator:
- Nitrogen cooling
- Hydrogen cooling
- Oxygen cooling
- None of these
Correct answer: 2. Hydrogen cooling
Explanation: Hydrogen is the preferred cooling medium for large turbine generators. Hydrogen has excellent heat transfer properties, low density, and high thermal conductivity. This allows for efficient cooling and helps in maintaining the temperature of the generator within acceptable limits. Hydrogen cooling is particularly advantageous for high-capacity generators, as it enables better heat dissipation compared to other gases.