Electrical Engg (EEE) - MCQ Practice Questions

In the latest Indian RE (Renewable Energy) integration guidelines 2024, what is the maximum renewable energy penetration level being targeted by 2030?

In load flow analysis using Newton-Raphson method, what determines the convergence rate?

What is the primary advantage of using HVDC transmission over HVAC for long distances?

Which protection scheme is typically used for protecting transmission lines in Indian grid?

In a 3-phase balanced fault at a bus, what is the fault current expression for a synchronous generator?

What is the economic dispatch problem in power systems?

What is the relationship between power factor and reactive power in a 3-phase system?

In voltage stability analysis, what does the P-V curve represent?

What is the primary purpose of a phasor measurement unit (PMU) in modern Indian grids?

In selective fuse coordination, which fuse should operate first during a downstream fault?

What is the primary function of phase-shifting transformers in Indian grid operation?

In a 400 kV transmission line, if the sending end voltage is 400 kV and receiving end voltage drops to 380 kV, what is the percentage voltage regulation?

A synchronous generator has a subtransient reactance (X''d) of 0.15 pu and transient reactance (X'd) of 0.25 pu. During a three-phase fault, which reactance is used for the initial fault current calculation?

Which protection scheme is mandated for inter-state transmission lines in India according to Grid Code 2023?

A capacitor bank rated 50 MVAR at 400 kV is to be switched in a power system. Which device is most suitable for controlled switching to avoid transient overvoltages?

In the Indian power system, the frequency regulation bandwidth for Load Frequency Control (LFC) is typically maintained within:

A 50 MW, 11 kV, 50 Hz synchronous generator has an inertia constant H = 6 seconds. Calculate the kinetic energy stored in the rotor at rated speed.

In a multi-machine power system stability study, which parameter is used to measure relative rotor angle instability between two generators?

A STATCOM (Static Synchronous Compensator) is installed in a 220 kV network. In what mode should it operate to provide reactive power support during a voltage sag?

In selective coordination of protective devices, what is the minimum time interval required between the operation of primary and backup fuses as per Indian standards?