High voltage technique IS-FEE-10034

The principal objective of lectures is to cover the fundamentals of high-voltage test technique, generation and measurement of high voltages, electrical breakdown in gases, solid and liquid dielectric, travelling waves in high voltage lines, lightning and overvoltage protection and to present the basics of high voltage insulation design.Skills of performing measurements, tests and studies on high voltage generators, electrical withstand of insulators and insulating materials and measurements of high voltages and high currents. Skills of safe work with high voltage electrical devices and apparatus.
Lecture
High voltage test technique. Generation and measurement of high alternating and direct voltages. Generation and measurements of impulse voltages and currents. Dielectric loss and capacitance measurements. Partial discharge measurements. Disturbances in high voltage laboratory. Electrical breakdown in gases, solid and liquid dielectric. Travelling waves in high voltage lines. Reflection of travelling waves. Reflection of travelling waves against transformers. Lightning, mechanism, philosophy of protection, lightning protection of structures. Lightning and switching transients in power system. Protection against overvoltages. Surge protective devices. Insulation coordination. Construction elements for high voltage circuits. High voltages cables and capacitors. Design, materials and testing. High voltage Transformers. Materials and testing. External insulation. Design and testing.
Laboratory class
Measurement of voltage distribution across an insulator string. Measuremets of electrical withstand of air subjected to high voltage of AC, DC and surge type. Methods of measurement of high voltages. Investigation of surge generators. Investigation of oil insulation.

Requirements:
Students should have basic knowledge in the field of mathematics, electrical physics, circuit theory, digital and analog electronics, fundamentals of computer science. The general requirement is that student has studied engineering for at least 2 years. In some cases prerequisites are defined.