EE1402 HIGH VOLTAGE ENGG

EE 1402 HIGH VOLTAGE ENGINEERING 3 0 0 100

AIM

To expose the students to various types of over voltage transients in power system and its effect on power system.

- Generation of over voltages in laboratory

- Testing of power apparatus and system.

OBJECTIVES

i. To understand the various types of over voltages in power system and protection

methods.

i. Generation of over voltages in laboratories.

ii. Measurement of over voltages.

iii. Nature of Breakdown mechanism in solid, liquid and gaseous dielectrics – discussion on commercial insulants.

iv. Testing of power apparatus and insulation coordination

1. OVER VOLTAGES IN ELECTRICAL POWER SYSTEMS 6

Causes of over voltages and its effect on power system – Lightning, switching surges and

temporary over voltages - protection against over voltages.

2. ELECTRICAL BREAKDOWN IN GASES, SOLIDS AND LIQUIDS 10

Gaseous breakdown in uniform and non-uniform fields – corona discharges – Vacuum

breakdown - conduction and breakdown in pure and commercial liquids – breakdown

mechanisms in solid and composite dielectrics.

3. GENERATION OF HIGH VOLTAGES AND HIGH CURRENTS 10

Generation of High DC, AC, impulse voltages and currents. Tripping and control of

impulse generators.

4. MEASUREMENT OF HIGH VOLTAGES AND HIGH CURRENTS 10

Measurement of High voltages and High currents – digital techniques in high voltage

measurement.

5. HIGH VOLTAGE TESTING & INSULATION COORDINATION 9

High voltage testing of electrical power apparatus – power frequency, impulse voltage and DC testing – International and Indian standards – Insulation Coordination.

L = 45 Total = 45

TEXT BOOK

1. M.S. Naidu and V. Kamaraju, ‘High Voltage Engineering’, Tata McGraw Hill, 3^rd Edition, 2004.

REFERENCE BOOKS

1. E. Kuffel and W.S. Zaengl, ‘High Voltage Engineering Fundamentals’, Pergamon press, Oxford, London, 1986.

2. E. Kuffel and M. Abdullah, ‘High Voltage Engineering’, Pergamon press, Oxford, 1970.