BARC EE : Subject Revision Quiz 5

A transmission line is delivering 20 MW of Power at V₁ voltage. If line voltage is changed to 3 times of V₁, then power transfer capacity will be _______MW.

The frequency of ripple in the output voltage of three phase half controlled bridge rectifier depends on

The length of overlap period can be decreased by

GMR value is ________if individual strand has radius ‘r’

For ‘x’ cycle of ON period & ‘y’ cycle of OFF period in AC voltage controller. The ratio of time period of output voltage to input voltage is

Load encroachment in case of impedance relay is a _________Phenomenon.

In a dual converter, Total number of quadrant operation possible is/are _______.

Series capacitor compensation is used in transmission lines to

A 6- pulse diode rectifier circuit with capacitor filter will have an average

voltage for pure resistive load.

An alternate has 20%, 25% and 5% positive, negative and zero sequence reactance’s. What is the value of neutral grounding reactance so that the fault current for single line to ground fault is equal to rated line current?

In the three phase bridge inverter, each steps consist of

Consider a 3-core, 3-ϕ, 50 Hz, 22 kV cable. The inter-phase capacitance between each pair of conductors is 0.4 μF and the capacitance between each line conductor and the sheath is 0.6 μF. Find the charging current?

In context with 180° mode & 120° mode

The zero-sequence impedance of a 3ϕ transformer is shown below. The connection of its winding are:

For an AC-AC converter, SCR is ON for 25 cycles and OFF for 75 cycles. Its input Power factor is ________lagging.

Which of the following statement is NOT correct about insulator?

Which of the following is not true for SMPS?

A 500 MVA 66 kV/132 kV transformer star-delta has per unit leakage reactance of 0.1 pu on the base of 500 MVA, primary voltage 66 kv. What is the leakage reactance referred to secondary side in ohms is:

Resonant pulse commutation is also known as: