EE8701 - HIGH VOLTAGE ENGINEERING (Syllabus) 2017-regulation Anna University

EE8701

HIGH VOLTAGE ENGINEERING

 LPTC

3003

OBJECTIVES: To impart knowledge on the following Topics
• Various types of over voltages in power system and protection methods.
• Generation of over voltages in laboratories.
• Measurement of over voltages.
• Nature of Breakdown mechanism in solid, liquid and gaseous dielectrics.
• Testing of power apparatus and insulation coordination

UNIT I

OVER VOLTAGES IN ELECTRICAL POWER SYSTEMS

9

Causes of over voltages and its effects on power system – Lightning, switching surges and temporary over voltages, Corona and its effects – Bewley lattice diagram- Protection against over voltages.

UNIT II

DIELECTRIC BREAKDOWN

9

Properties of Dielectric materials - Gaseous breakdown in uniform and non-uniform fields – Corona discharges – Vacuum breakdown – Conduction and breakdown in pure and commercial liquids, Maintenance of oil Quality – Breakdown mechanisms in solid and composite dielectrics- Applications of insulating materials in electrical equipments.


UNIT III

GENERATION OF HIGH VOLTAGES AND HIGH CURRENTS

9

Generation of High DC voltage: Rectifiers, voltage multipliers, vandigraff generator: generation of high impulse voltage: single and multistage Marx circuits – generation of high AC voltages: cascaded transformers, resonant transformer and tesla coil- generation of switching surges – generation of impulse currents - Triggering and control of impulse generators.

UNIT IV

MEASUREMENT OF HIGH VOLTAGES AND HIGH CURRENTS

9

High Resistance with series ammeter – Dividers, Resistance, Capacitance and Mixed dividers - Peak Voltmeter, Generating Voltmeters - Capacitance Voltage Transformers, Electrostatic Voltmeters – Sphere Gaps - High current shunts- Digital techniques in high voltage measurement.

UNIT V

HIGH VOLTAGE TESTING & INSULATION COORDINATION

9

High voltage testing of electrical power apparatus as per International and Indian standards – Power frequency, impulse voltage and DC testing of Insulators, circuit breakers, bushing, isolators and transformers- Insulation Coordination& testing of cabilitys.

TOTAL: 45 PERIODS

OUTCOMES:
• Ability to understand Transients in power system.
• Ability to understand Generation and measurement of high voltage.
• Ability to understand High voltage testing.
• Ability to understand various types of over voltages in power system.
• Ability to measure over voltages.
• Ability to test power apparatus and insulation coordination

TEXT BOOKS:
1. S.Naidu and V. Kamaraju, ‘High Voltage Engineering’, Tata McGraw Hill, Fifth Edition, 2013.
2. E. Kuffel and W.S. Zaengl, J.Kuffel, ‘High voltage Engineering fundamentals’, Newnes Second Edition Elsevier , New Delhi, 2005.
3. C.L. Wadhwa, ‘High voltage Engineering’, New Age International Publishers, Third Edition, 2010.

REFERENCES:
1. L.L. Alston, ‘High Voltage Technology’, Oxford University Press, First Indian Edition, 2011.
2. Mazen Abdel – Salam, Hussein Anis, Ahdab A-Morshedy, Roshday Radwan, High Voltage Engineering – Theory & Practice, Second Edition Marcel Dekker, Inc., 2010.
3. Subir Ray,’ An Introduction to High Voltage Engineering’ PHI Learning Private Limited, New Delhi, Second Edition, 2013.

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