Power supplies

Power supplies

Industry: Electrical equipment

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Power supplies

permittivity

Electrical equipment; Power supplies

The dielectric constant multiplied by the permittivity of empty space, where the permittivity of empty space, 0 ε , is a constant appearing in Coulomb’s Law.

resistivity (specific insulation resistance)

Electrical equipment; Power supplies

The electrical resistance between opposite faces of a 1-cm cube of an insulating material, commonly expressed in ohmcentimeters. Sometimes called volume resistivity.

cathode

Electrical equipment; Power supplies

The electrode through which an electric current leaves a liquid, gas, or other discrete part of an electric circuit; the negatively charged pole of an electrochemical cell.

electric field intensity

Electrical equipment; Power supplies

The force exerted on a stationary positive charge per unit charge at a point in an electric field. Designated by E. Also known as electric field strength, electric field vector.

The kinetic temperature of a thermal plasma. Often this is expressed in energy units (eV), giving the average thermal energy of an ion or electron in the plasma. The ion temperatures need not be the ...

dielectric strength

Electrical equipment; Power supplies

The maximum electrical potential gradient (electric field) that an insulating material can withstand without rupture, usually expressed in volts per mm of thickness.