A study on effect of medium conductivity on its electric strength under different source conditions in nanosecond regimes

Author

Grenier, J. ; Jayaram, S.H. ; El-Hag, A.H. ; Kazerani, M.

Author_Institution

Dept. of Electr. & Comput. Eng., Waterloo Univ., Ont., Canada

fYear

2005

Firstpage

261

Lastpage

264

Abstract

Applications of pulsed electric fields (PEF) are dependent on the output pulse shape and pulse parameters. Both the design of the supply and the sample being tested can influence the pulse shape and its parameters. In this paper the output pulses of two pulsed power supplies, one using a thyratron switch and the other a MOSFET, are examined. The load used in the experiments consists of two circular coaxial electrodes separated by conductive water. The water conductivity is changed from 2.2 × 10^-4 S/m to 5000 × 10^-4 S/m and the effect on the output pulse amplitude, rise-time and fall-time are investigated and explained.

Keywords

MOSFET; electrical conductivity; pulsed power supplies; pulsed power switches; thyratrons; water; H₂O; MOSFET; PEF; coaxial electrodes; electric strength; fall-time; medium conductivity; nanosecond regimes; output pulse shape; pulse amplitude; pulse parameters; pulsed electric fields; pulsed power supplies; rise-time; thyratron switch; water conductivity; Coaxial components; Conductivity; MOSFET circuits; Power MOSFET; Pulse shaping methods; Pulsed power supplies; Shape; Switches; Testing; Thyratrons;

fLanguage

English

Publisher

ieee

Conference_Titel

Dielectric Liquids, 2005. ICDL 2005. 2005 IEEE International Conference on

Print_ISBN

0-7803-8954-9

Type

conf

DOI

10.1109/ICDL.2005.1490076

Filename

1490076