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R - Fachgebiet Hochspannungstechnik

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Capacitive Loading by Shielding Electrodes<br />

Capacitance of a sphere to ground<br />

(ground at infinity):<br />

C K = 4 πε 0 ε r r k<br />

ε 0 = 8,86 pF/m<br />

C K = 1,11 r K = 62 pF<br />

⇒ Capacitive current: 20 mA<br />

⇒ Reactive power: 20 kVA<br />

<strong>Fachgebiet</strong><br />

<strong>Hochspannungstechnik</strong><br />

High-Voltage Technology / Chapter 6 - 18 -

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