conductivity measuring instrument

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• Partial discharge — In electrical engineering, a partial discharge (PD) is a localised dielectric breakdown of a small portion of a solid or liquid electrical insulation system under high voltage stress. While a corona discharge is usually revealed by a relatively… …   Wikipedia

• katharometer — noun measures thermal conductivity • Hypernyms: ↑measuring instrument, ↑measuring system, ↑measuring device …   Useful english dictionary