MGVCL Exam Paper (30-07-2021 Shift 1)
A fully controlled natural commutated 3-phase bridge rectifier is operating with a firing angle α = 30°, The peak to peak voltage ripple expressed as a ratio of the peak output dc voltage at the output of the converter bridge is

√3-1
√3 -1
0.5
1-(√3/2)

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MGVCL Exam Paper (30-07-2021 Shift 1)
A balanced delta connected load of 8+j6 Ω per phase is connected to a 415 V, 50 Hz, 3-phase supply lines. If the input power factor is improved to 0.9 by connecting a star connected capacitor bank, then the required kVAR of the bank is

14.98 kVAR
10.98 kVAR
16.98 kVAR
8.98 kVAR

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MGVCL Exam Paper (30-07-2021 Shift 1)
Replace the underlined phrase in braket grammatically and conceptually with the help of the given options. If the given sentence is correct then select the option 'The given sentence is correct'.

The new client had to pay money to initiates a account and activate their service

had to pay money to initiate a
The given sentence is correct
had to pay money to initiate an
have to pay money to initiate an

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