Electrical Engineering XYZ MCQs
Which of the following is a method of improving transient stability:
- Fast acting excitation control
- Dynamic breaking
- Fast acting governing system
- All of these
Correct answer: 4. All of these
Explanation: All of these is correct answer here.
- Fast acting excitation control: Excitation control refers to the adjustment of the field current in a synchronous generator to control the terminal voltage. Fast acting excitation control can help improve transient stability by quickly adjusting the generator’s voltage in response to sudden changes in the system.
- Dynamic braking: Dynamic braking is a method of braking where the kinetic energy of a rotating machine, such as a generator or motor, is converted into electrical energy and dissipated as heat. This can be useful in stabilizing the system during transient events by controlling the speed of the rotating equipment.
- Fast acting governing system: The governing system of a power system regulates the mechanical power input to the generator to maintain a balance between generation and load. A fast-acting governing system can help stabilize the system by quickly adjusting the mechanical power input in response to disturbances.
In summary, all of these methods contribute to improving transient stability by providing fast and effective control mechanisms to respond to disturbances and maintain the stability of the power system.