Podcast
Questions and Answers
What happens if one or more of the generators lose synchronism following a disturbance?
What happens if one or more of the generators lose synchronism following a disturbance?
- Synchronism is maintained without any impact
- Power can be transferred between the machines with loss
- No net power can be transferred between the machines (correct)
- The generator efficiency increases
When is a system said to be transiently unstable?
When is a system said to be transiently unstable?
- Following a disturbance, one or more of the generators lose synchronism (correct)
- All generators maintain synchronism at all times
- There are no disturbances in the system
- The voltage magnitude is fixed for all generators
What is the primary requirement for all generators to operate as an interconnected system?
What is the primary requirement for all generators to operate as an interconnected system?
- The voltage magnitude must be different for each generator
- The rotors must turn at exactly the same speed (correct)
- The rotors must turn at different speeds
- The generators must have different pole numbers
What type of models need to be developed in order to study the transient response of a power system?
What type of models need to be developed in order to study the transient response of a power system?
In the generator mechanical model, what does 'J' represent?
In the generator mechanical model, what does 'J' represent?
What is the primary consequence of a loss of synchronism in an interconnected power system?
What is the primary consequence of a loss of synchronism in an interconnected power system?
Which model treats the generator as a voltage source behind the direct-axis transient reactance with a fixed voltage magnitude but changing angle according to the mechanical dynamics?
Which model treats the generator as a voltage source behind the direct-axis transient reactance with a fixed voltage magnitude but changing angle according to the mechanical dynamics?
In which time frame following a system disturbance do we need to develop models for the generator's transient response?
In which time frame following a system disturbance do we need to develop models for the generator's transient response?
What does 'J' represent in the generator mechanical model?
What does 'J' represent in the generator mechanical model?
What is the requirement for all generators to remain in synchronism in an interconnected power system?
What is the requirement for all generators to remain in synchronism in an interconnected power system?
What is the consequence of a loss of synchronism in an interconnected power system?
What is the consequence of a loss of synchronism in an interconnected power system?
What is the equivalent electrical torque in the generator mechanical model?
What is the equivalent electrical torque in the generator mechanical model?
What does the classical model of the generator consider it as?
What does the classical model of the generator consider it as?
What is the primary focus of studying the transient response of a power system?
What is the primary focus of studying the transient response of a power system?
What is the moment of inertia 'J' in the generator mechanical model?
What is the moment of inertia 'J' in the generator mechanical model?
