ELECTRIC FIELDS FOR PREBREAKDOWN PARTIAL DISCHARGES IN LIQUID DIELECTRICS
The existence of prebreakdown collision-ionization processes in liquid dielectrics was observed reproducibly far below breakdown, using a coaxial cylindrical electrode geometry. Preliminary values of the critical electric fields, Epd, for ac prebreakdown partial discharges were measured for three li...
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| Veröffentlicht in: | Applied physics letters 1971-01, Vol.18 (11), p.513-515 |
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| container_title | Applied physics letters |
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| creator | Fafarman, Alfred |
| description | The existence of prebreakdown collision-ionization processes in liquid dielectrics was observed reproducibly far below breakdown, using a coaxial cylindrical electrode geometry. Preliminary values of the critical electric fields, Epd, for ac prebreakdown partial discharges were measured for three liquid dielectrics: a silicate ester, Oronite Flowcool 180, Epd ≃ 520 ± 100 kV/cm rms; a mineral oil, Wemco C, Epd ≃ 610 ± 30 kV/cm rms; a dimethyl silicone, dc 331, Epd > 1000 kV/cm rms. However, prebreakdown partial discharges were not observed for the coaxial-cylindrical geometry with close spacings when the breakdown electric fields were lower than the above fields. |
| doi_str_mv | 10.1063/1.1653518 |
| format | Article |
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| fulltext | fulltext |
| identifier | ISSN: 0003-6951 |
| ispartof | Applied physics letters, 1971-01, Vol.18 (11), p.513-515 |
| issn | 0003-6951 1077-3118 |
| language | eng |
| recordid | cdi_crossref_primary_10_1063_1_1653518 |
| source | AIP Digital Archive |
| title | ELECTRIC FIELDS FOR PREBREAKDOWN PARTIAL DISCHARGES IN LIQUID DIELECTRICS |
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