MGVCL Exam Paper (30-07-2021 Shift 3)
In a series RLC circuit, the supply voltage is 230 V at 50 Hz. The resonant current is 2 A at the resonant frequency of 50 Hz. Under the resonant condition, the voltage across the capacitor is measured to be equal to 460 V. What are the values of L and C?

0.53 H and 15.83 pF
0.53 mH and 15.83 pF
0.73 mH and 13.85 pF
0.73 H and 13.85 pF

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MGVCL Exam Paper (30-07-2021 Shift 3)
Consider the following statements and choose the correct option.
Statement 1: DVR (Dynamic Voltage Restorer) is a series compensation device.
Statement 2: DVR protects sensitive electric load from power quality problems such as voltage sags, swells, unbalance and distortion through power electronic controllers."
Statement 2: In a synchronous motor, at no-load condition, and with normal excitation the armature current

Statement 1 is TRUE and Statement 2 is FALSE
Statement 1 is FALSE and Statement 2 is TRUE
Both Statement 1 and Statement 2 are FALSE
Both Statement 1 and Statement 2 are TRUE

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MGVCL Exam Paper (30-07-2021 Shift 3)
If the velocity of wind is doubled then the power output will

increase by 8 times
increase by 6 times
reduced to half
doubled

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MGVCL Exam Paper (30-07-2021 Shift 3)
Continuous and rapid variations in the load current magnitude which causes voltage variations is known as

Voltage sag
Harmonics
Flicker
Voltage distortion

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