Plasma Density Measurements Using a Double Langmuir Probe in a Prototype Vaccuum ARC Fault Current Limiter
| Autor: | P. D. Pedrow, J. L. Shohet, L. M. Burrage |
|---|---|
| Rok vydání: | 1981 |
| Předmět: |
Materials science
business.industry General Engineering Electrical engineering Energy Engineering and Power Technology Arc-fault circuit interrupter Plasma Cathode law.invention symbols.namesake Current limiting Optics Physics::Plasma Physics law Fault current limiter symbols Langmuir probe Electrical and Electronic Engineering Current (fluid) Resistor business |
| Zdroj: | IEEE Transactions on Power Apparatus and Systems. :2740-2745 |
| ISSN: | 0018-9510 |
| DOI: | 10.1109/tpas.1981.316367 |
| Popis: | Electric power systems could benefit from a device that would limit the magnitude of short-circuit current. A switched resistor fault current limiter requires a commutating switch capable of interrupting current without the benefit of a natural current zero. The unstable diffuse plasma discharge between electrodes in a cylindrical geometry might be capable of such a task but the phenomena involved in this discharge is not completely understood. To develop a detailed model of this unstable discharge, measurements of the plasma density as a function of position and time were made using a double probe. A maximum density of 5 x 1020 m-3 was measured 90 mm from the cathode of this diffuse copper vapor discharge in vacuum. |
| Databáze: | OpenAIRE |
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