What is the primary function of a circuit breaker in a power system?
Q.282Medium
The stability of a power system depends on which of the following factors?
Q.283Easy
Which of the following is NOT a renewable energy source integrated into the Indian grid?
Q.284Easy
What is the standard frequency of the Indian power grid?
Q.285Easy
In a power system, the angle between voltage and current phasors is known as:
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Q.286Medium
The per-unit (p.u.) system in power systems is used primarily to:
Q.287Medium
Which protective relay is used for phase-to-phase fault detection in transmission lines?
Q.288Medium
A synchronous motor operating at no-load consumes:
Q.289Medium
The reactive power generated by an over-excited synchronous generator is:
Q.290Medium
What is the primary cause of voltage instability in a power system?
Q.291Hard
The swing equation of a synchronous machine is given by: 2H(d²δ/dt²) = Pm - Pe - D(dδ/dt). What does H represent?
Q.292Easy
In India's 2024-25 grid, which state has the highest installed renewable energy capacity?
Q.293Hard
The critical clearing angle (δcr) in transient stability analysis represents:
Q.294Medium
Power system harmonics in Indian grids are primarily caused by:
Q.295Hard
The fault level (short-circuit capacity) at a bus is determined by:
Q.296Medium
In load flow analysis, which bus type is used to specify active power and voltage magnitude?
Q.297Hard
The maximum power transfer in an AC transmission system occurs when the sending and receiving end voltages are:
Q.298Medium
Which of the following is a measure of power quality as per Indian Standards (IS 16001:2017)?
Q.299Medium
In a three-phase power system with balanced conditions, the zero-sequence current flows through:
Q.300Easy
In a 400 kV transmission line in India's western grid, if the series reactance is 0.35 Ω/km and the line length is 250 km, what is the total series reactance of the transmission line?
