Anna University Power System Transient Notes – EE2027 Notes

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Anna University Power System transient Notes – EE2027 PST Lecture Notes, Subject Notes for EEE 6th Sem

download Anna University Power System Transient Notes in PPT. EE2027 PST Lecture Notes, Subject Notes, Unit Wise Notes for EEE 6th Semester Elective Subjects download in PPT and in PDF format . Download Anna University EE2027 Notes and content of EE2027 PST notes is also provided.

EE2027 POWER SYSTEM TRANSIENTS ANNA UNIVERSITY NOTES – EE2027 PST NOTES

Subjects : Power System Transient (PST)

Subject Code : EI2027

Department : Electrical and Electronics Engineering (EEE)

Semester : 6th Sem

University : Anna University, Chennai

EE2027 power system transients anna university notes download

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Content in EI2027 Lecture Notes:

UNIT I INTRODUCTION AND SURVEY
Review and importance of the study of transients – causes for transients.
RL circuit transient with sine wave excitation – double frequency transients – basic transforms of the
RLC circuit transients.
Different types of power system transients – effect of transients on power systems – role of the study
of transients in system planning.
UNIT II SWITCHING TRANSIENTS
Over voltages due to switching transients – resistance switching and the equivalent circuit for
interrupting the resistor current – load switching and equivalent circuit – waveforms for transient
voltage across the load and the switch – normal and abnormal switching transients. Current
suppression – current chopping – effective equivalent circuit. Capacitance switching – effect of source
regulation – capacitance switching with a restrike, with multiple restrikes. Illustration for multiple
restriking transients – ferro resonance.
UNIT III LIGHTNING TRANSIENTS
Review of the theories in the formation of clouds and charge formation – rate of charging of thunder
clouds – mechanism of lightning discharges and characteristics of lightning strokes – model for
lightning stroke – factors contributing to good line design – protection using ground wires – tower
footing resistance – Interaction between lightning and power system.

UNIT IV TRAVELING WAVES ON TRANSMISSION LINE COMPUTATION OF TRANSIENTS
Computation of transients – transient response of systems with series and shunt lumped parameters
and distributed lines. Traveling wave concept – step response – Bewely’s lattice diagram – standing
waves and natural frequencies – reflection and refraction of travelling waves.
UNIT V TRANSIENTS IN INTEGRATED POWER SYSTEM
The short line and kilometric fault – distribution of voltages in a power system – Line dropping and
load rejection – voltage transients on closing and reclosing lines – over voltage induced by faults -
switching surges on integrated system
Qualitative application of EMTP for transient computation.
 TEXT BOOKS
1. Allan Greenwood, ‘Electrical Transients in Power Systems’, Wiley Interscience, New York, 2nd
edition 1991.
2. R.D.Begamudre, ‘Extra High Voltage AC Transmission Engineering’, Wiley Eastern Limited,1986.
REFERENCES
1. M.S.Naidu and V.Kamaraju, ‘High Voltage Engineering’, Tata McGraw Hill, 2nd edition, 2000.

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