Relationship between UHF PD Detection and Apparent Charge Quantity of Metal Protrusion in Air

On the basis of the experiment model of metal protrusion, the relationship between UHF measurement and pulse current method was investigated by theory and experiment results. The results indicate that the optimal regression curve is energy of UHF signal relative to square of apparent discharge quantity. The variation of voltage has no impact on the regression curve. However, while the distance between protrusion and plate is changed, the slope of regression curve changes according to it and the same energy is corresponding to bigger discharge quantity. Streszczenie. Bazując na eksperymentalnym modelu rozrzutu metalu w powietrzu badano zaleznośc pomiaru UHV i metodą prądu pulsującego. Stwierdzono, ze energia sygnalu UHV zalezy w kwadracie od natezenia wyladowania. Wprawdzie energia wyladowania nie zalezy od zmian napiecia ale wraz ze zmianą odleglości miedzy elektrodami wyladowania zmienia sie ksztalt krzywej regresji w zalezności od napiecia. (Zaleznośc miedzy detekcją UHV wyladowania niezupelnego a wielkością ladunku metalu rozpylanego w powietrzu)

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