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503210: HIGH VOLTAGE POWER TRANSMISSION
Teaching Scheme Examination Scheme
3 Hrs/Week Paper: 100 Marks
Part 1 : HIGH VOLTAGE AC TRANSMISSION
UNIT 1: Engineering Aspects of EHV AC Transmission System.
Principles, configuration, special features of high voltage AC lines, power transfer
ability, reactive power compensation, audible noise, corona bundle conductors,
electric field, right of way, clearances in a tower, phase to phase, phase to ground,
phase to tower, factors to be considered, location of ground wire, angle of protection,
clearances, tower configuration.
Principles of radio interference, origin of radio interference, method of propagation,
factors to be considered in line design. [ 8 Hrs ]
UNIT 2: Power System Transients:
I
ntroduction, circuit closing transients, sudden symmetrical short circuit of alternator,
recovery transients due to removal of short circuit, traveling waves on transmission
lines, wave equation, surge impedance and wave velocity, specifications of traveling
waves, reflection and refraction of waves, typical cases of line terminations ,
equivalent circuit for traveling wave studies, forked lines, reactive termination,
successive reflections, Bewley lattice diagram, attenuation and distortion, arcing
grounds, capacitance switching, current chopping, lightning phenomenon, over
voltages due to lightning, line design based on direct strokes, protection of systems
against surges, statistical aspects of insulation co-ordination.
[ 8 Hrs ]
UNIT 3: Other Issues:
Biological effects of electric field, safe values of electric field, requirements of
transmission line, live line maintenance, basic principle, special tools and procedure,
methods of voltage control, tap changing, shunt compensation, shunt rectors and
shunt capacitors. [ 8 Hrs ]
Part 2: HIGH VOLTAGE DC TRANSMISSION
UNIT 4 : General Background :
EHV AC versus HVDC Transmission, power flow through HVDC link, equation for
HVDC power flow, effect of delay angle and angle of advance, bridge connections,
waveform of six pulse and twelve pulse bridge converter, commutation, phase control,
angle of extinction, control of DC voltage, connections of three phase six pulse and
twelve pulse converter bridges, voltage and current waveforms.
[ 8 Hrs ]
UNIT 5:
Bipolar HVDC terminal, converter transformer connections, switching arrangements in
DC yard for earth return to metallic return, HVDC switching system, switching
arrangements in a bipolar HVDC terminal, sequence of switching operations, HVDC
circuit breakers, DC current interruption, commutation principle, probable types and
applications of HVDC circuit breakers, multi-terminal HVDC systems, parallel tapping,
reversal of power, configurations and types of multi-terminal HVDC systems,
commercial multi terminal systems.
[ 8 Hrs ]
UNIT 6 :
Faults and abnormal condition in bipolar, two terminal HVDC system, pole-wise
segregation, protective zones, clearing of DC line faults and reenergizing, protection
.of converters, transformer, converter valves, DC yards, integration of protection and
controls, hierarchical levels of control, block diagram, schematic diagram, current
control, power control, DC voltage control, commutation channel, master control,
station control, lead station, trail station, pole control, equidistant firing control,
synchronous HVDC link, asynchronous HVDC Link.
[ 8 Hrs ]
Text Books:
1. EHV AC Transmission Rakosh Das Begamudre, New Age Publishers
2. Direct Current Transmission Vol-I, Kimbark E.W. , Wiley Interscience
Reference Books:
1. An Introduction to High Voltage Engineering by Subir Ray, Prentice Hall of India
Private Limited, New Delhi – 110 001.
2. HVDC Transmission- Adamson C. Hingorani N.G.
3. Power Transmission by DC Uhimann E.
4. HVAC and HVDC Transmission, Engineering and practice : S. Rao, Khanna
Publisher, Delhi.
5. Electric Power Systems : B.M. Weddy and B.J.Cory, John Wiely and Sons,
Fourth edition (2002)
6. Power System Analysis and Design : J.Duncan Glover, Mulukutla S.Sarma,
Thomson Brooks/cole /Third Edition (2003)
7. Power System Analysis and Design, B.R. Gupta, S.Chand and Company
(2004)
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For more details, visit http://www.unipune.ernet.in/stud_info/Syllabi/Syllabus_2008.html
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