Precision Electrical Measurements |
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accuracy adjusted admittance alloys alternating amplifier breakdown voltage bridge British Electricity Authority C₂ calculated calibration capacitor divider cavity chopped wave circuit cm spheres coil compressed gas capacitor conductor connexion constant constantan copper detection detector diameter dielectric dielectric constant difference direct current discharge earth capacitance effect electrical electrode Engrs error factor fault field flashover flashover voltage full wave heater high-voltage impedance impulse tests impulse voltages inductance inductors Instn instrument insulation kc/s kV eff low-voltage magnetic manganin material Mc/s method microseconds Mumetal National Physical Laboratory neutral current obtained ohms oscillator oscillograms output paper permeability permeameter permittivity possible potentiometer power frequency precision ratio rectifiers resistance resistor resistor divider resonance sample screen short-circuit shown shunt specimen sphere-gap stability standard temperature coefficient terminal test object thermal converters thermocouple time-constant transformer tube voltage divider voltmeter wattmeter winding wire zero