POWER SYSTEM TRANSIENTS MEPS-205

M.E. / M.TECH POWER SYSTEM TRANSIENTS MEPS-205

UNIT I

Origin and nature of transients and surges:Equivalent circuit representations.Lumped and distributed circuit transients.Line energisation and de-energisation transients.Earth and earthwire effects.

UNIT II

Current chopping in circuit breakers:Short line fault condition and its relation to circuit breaker duty.Trapped charge effects.Effect of source and source representation in short line fault studies. Control of transients.

UNIT III

Lightning phenomena:Influence of tower footing resistance and earth resistance.Traveling waves in distributed parameter multi-conductor lines,parameters as a function of frequency.

UNIT IV

Simulation of surge diverters in transient analysis:Influence of pole opening and pole closing.Fourier integral and Z transform methods in power system transients.Bergeron methods of analysis and use of EMTP and EMTDC/PSCAD package.

UNIT V

Insulation Coordination:overvoltage limiting devices, dielectric properties,breakdown of gaseous insulation, tracking and erosion of insulation,high current arcs.

REFERENCE BOOKS:

• Power System Transients by Vanikov

• Power System Transients by C. S. Indulkar and D.P. Kothari

• Power Circuit breaker theory and design by Flurscheim C.H.

• EMTP Rulebook

• EMTDC/PSCAD Rulebook