πŸ“Š Electrical Drives and Controls (EDC)
Q. Calculate the compensator rating required for a sec(Φ)=1.
  • (A) 0.64 p.u
  • (B) 0.21 p.u
  • (C) 0.57 p.u
  • (D) 0 p.u
πŸ’¬ Discuss
βœ… Correct Answer: (D) 0 p.u

Explanation: the compensator rating can be calculated using the relation qp.u=√1-

πŸ“Š Electrical Drives and Controls (EDC)
Q. Calculate the value of Voltage ripple factor if the Form factor is 1.1.
  • (A) 45.8 %
  • (B) 46.2 %
  • (C) 47.5 %
  • (D) 49.9 %
πŸ’¬ Discuss
βœ… Correct Answer: (A) 45.8 %

Explanation: voltage ripple factor measures the harmonics on the dc side of the converter. the value of voltage ripple factor is √f.f2-1=45.8 %. the form factor is vr.m.s÷vavg.

πŸ“Š Electrical Drives and Controls (EDC)
Q. Full form of VRF.
  • (A) voltage ripple factor
  • (B) voltage revert factor
  • (C) volume ripple factor
  • (D) volume revert factor
πŸ’¬ Discuss
βœ… Correct Answer: (A) voltage ripple factor

Explanation: voltage ripple factor measures the harmonics on the dc side of the converter. the value of voltage ripple factor is √f.f2-1. the form factor is vr.m.s÷vavg.

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