WorksheetsUNIT-V ASSIGNMENT ONLINE QUIZ
Total questions: 10
Worksheet time: 5mins
How many categories can the synchronous motors be divided into?
4
3
5
2
The Critical Clearance time of a fault in the power system is related to
Reactive power limit
Short Circuit limit
Steady state stability limit
Transient stability limit
Which type of rotor is generally used for high speed alternators or turbo alternators?
Salient pole type
Projected pole type
Smooth cylindrical type
Both (a) & (b)
If the torque angle of the alternator increases indefinitely the system will show:
Steady state stability limit
Transient state stability limit
Instability
None of the above
What information does the swing curve provide?
Stability of the system
Performance of the machine
The rotor performance
All of these
What kind of differential equation is swing equation?
Linear second order
Non linear first order
Linear first order
Non linear second order
What is the value of transient stability limit?
Higher than steady state stability limit
Lower than steady state stability limit.
Depending upon the severity of load
All of these
By using which component can the transient stability limit of a power system be improved?
Series resistance
Series capacitor
Series reactor
shunt capacitor
The stability of the power system is not affected by which among these?
Generator reactance
Line losses
Excitation of generators
All of these
The use of high speed breakers can:
Increase the transient stability
Decrease the transient stability
Increase the steady state stability
Decrease the steady state stability
