In case of a 3-phase short circuit is a system, the power fed into the system is :

Related MCQs

• The principal information obtained from load flow studies in a power system are 1. magnitude and phase angle of the voltage at each bus. 2. reactive and real power flows in each of lines. 3. total power loss in the network. 4. Transient stability limit of the system Select the correct answer from the codes given below :
• Reducing the number of short-circuit faults in a system, reduces ______
• Consider the following statements : The transient stability of the power system under unbalanced fault conditions can be effectively improved by 1. Excitation control 2. phase-shifting transformer 3. single-pole switching of circuit breakers 4. increasing the turbine input. Of these statements
• Pure inductive circuit takes power (reactive) from the a.c. line when
• The power factor angle of a purely inductive circuit is:
• A circuit having poor power factor will draw:
• A 500 kVA circuit drawing 200 kW and an inductive load requires how much capacitance to obtain unity power factor:
• Tansient disturbance is produced in a circuit whenever
• The transients which are produced due to sudden but energetic changes from one steady state of a circuit to another are called transients.
• In an R-L circuit connected to an alternating sinusoidal voltage, size of transient current primarily depends on