EE2028 Power Quality Important Questions April May 2014 - 8th Semester EEE Anna University - EE2028 Important Questions - Power Quality Important Questions - EEE Anna University Important Questions - Anna University Important Questions - PQ Important Questions
UNIT – I
1. Explain the following terms: Voltage Sag, Voltage Swell, Under Voltage, Over Voltage, Transients, Interruptions, Voltage Fluctuation, Power Frequency Variations
2. Explain Distortion and types.
3. Write short notes on CBEMA.
UNIT – II
1. Explain the Sources of Over voltages and Interruptions.
2. Estimate the Voltage sag performance.
3. Explain the voltage sag due to induction motor starting.
4. Estimate the Voltage severity and mitigation of voltage sags.
5. Explain Static transfer switches and fast transfer switches.
UNIT – III
1. Explain the sources of Over Voltages.
2. Explain Capacitor switching, Lightning, Ferro resonance
3. Explain Surge Arresters.
4. Explain the protection of transformer and cable.s
5. Write short notes on PSCAD, EMTP
UNIT – IV
1. Explain the harmonic sources from industrial and commercial loads.
2. Explain the power system response characteristics.
3. Explain the devices for controlling harmonic distortion.
4. Write short notes on : IEEE, IEC
UNIT – V
1. What are the monitoring considerations.
2. Explain the various power quality problems.
3. Explain quality measurement equipments
4. What are the applications of expert systems for power monitoring
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