Electrical Breakdown of Insulating Liquids |
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Page 7
... contaminants in dielectrics is so considerable , that most measurements carried out up to now are valueless ... The dielectric strength of mineral oils is rather a function of their moisture contents than of their composition " . In ...
... contaminants in dielectrics is so considerable , that most measurements carried out up to now are valueless ... The dielectric strength of mineral oils is rather a function of their moisture contents than of their composition " . In ...
Page 40
... contaminants acquire a charge as a result of the adsorption of ions , their velocity is proportional to E , when E has a low value . They behave like ions , move along the lines of force and contribute to the con- ductivity of the ...
... contaminants acquire a charge as a result of the adsorption of ions , their velocity is proportional to E , when E has a low value . They behave like ions , move along the lines of force and contribute to the con- ductivity of the ...
Page 98
... contaminants per c.cm of oil is Nr3 , whereas in formula ( 9-10 ) Nr7 / 2 occurs and not Nr3 . Now we may put forward two suppositions , which depend on the nature of the discharges through the insulator ( here the considerations of ...
... contaminants per c.cm of oil is Nr3 , whereas in formula ( 9-10 ) Nr7 / 2 occurs and not Nr3 . Now we may put forward two suppositions , which depend on the nature of the discharges through the insulator ( here the considerations of ...
Contents
Preface | 1 |
IMPURITIES IN INSULATING | 7 |
ELECTROPHORETIC MOTIONS OF PARTICLES | 30 |
Copyright | |
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according acidity amount applied aromatic assumed become breakdown strength bridge cable capacitor cause chapter charges colloid compared compounds concentration conductivity considerable considered consisting constant contain contents corona discharges corresponding decrease depends deterioration determined developed diameter dielectric direct discharges discussed duration effect electric electric field electrical discharge electrodes energy equal experiments factor fibres field strength filter flocculation follows forces formation formed formula frequency gas bubbles gives heat higher hydrocarbon important impurities increase induced dipoles inhibitors insulation interface ion atmospheres ions iron kV/mm less liquid losses lower maximum stress measurements mechanism method molecules observed obtained occur particles permittivity phenomenon place of maximum pointed polarization possible potential present pressure proportional relation remaining represented resins resistance shown soap spark stabilization stress surface suspension take place temperature theory time-lag viscosity void voltage whereas zero