Otimização dos parâmetros de um divisor de potencial resistivo.

Abstract

The main objective of this thesis is to develop a technique for optimizing the parameters of a measuring systern for high impulse voltages using a resistive divider. The parameters considered in this sense are: the shielding electrode geometry, the damping resistances, and the resistance of the low voltage arm. A new technique for optimizing a measuring system for high impulse vo.ltage is developed in using an equivalent circuit model of a resistive voltage divider. This technique has been applied to obtain the optimum parameters- values of a measuring system for 1MV impulses. The optimum response and the step-response of the measuring system have been calculated. Using the optimum parameters-values a resistive voltage divider was constructed. The step-response of the measuring system and the response time were obtained. The measured response time less than 20ns.