EE2028 Power Quality April May 2014 Important Questions

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Anna University

Department of Electrical and Electronics Engineering

Eighth Semester

EE2028 Power Quality

Important Questions (April May 2014 Edition)

(Regulation 2008)

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  EE2028 Power Quality IMP.pdf (Size: 358.85 KB / Downloads: 831)

UNIT – I

• Explain the following terms: Voltage Sag, Voltage Swell, Under Voltage, Over Voltage, Transients, Interruptions, Voltage Fluctuation, Power Frequency Variations
• Explain Distortion and types.
• Write short notes on CBEMA.

UNIT – II

• Explain the Sources of Over voltages and Interruptions.
• Estimate the Voltage sag performance. 
• Explain the voltage sag due to induction motor starting.
• Estimate the Voltage severity and mitigation of voltage sags.
• Explain Static transfer switches and fast transfer switches.

UNIT – III

• Explain the sources of Over Voltages.
• Explain Capacitor switching, Lightning, Ferro resonance
• Explain Surge Arresters.
• Explain the protection of transformer and cable.s
• Write short notes on PSCAD, EMTP

UNIT – IV

• Explain the harmonic sources from industrial and commercial loads.
• Explain the power system response characteristics.
• Explain the devices for controlling harmonic distortion.
• Write short notes on : IEEE, IEC

UNIT – V

• What are the monitoring considerations.
• Explain the various power quality problems.
• Explain quality measurement equipments
• What are the applications of expert systems for power monitoring