H - Electricity – 04 – B
Patent
H - Electricity
04
B
317/9
H04B 15/04 (2006.01) H04B 15/02 (2006.01)
Patent
CA 1109120
ABSTRACT OF THE DISCLOSURE In order to suppress high-frequency currents in the bearings of shafts in high frequency treating apparatus, the electrical capacitance of the bearing is arranged in the configuration of an electric quadrupole in such a manner that the high frequency voltage becomes a minimum. A further impedance is connected in series with the bearing impedance between the bearing housing and the housing of the treatment chamber, the sum of the further impedance and the impedance of the shaft being great in comparison to the bearing impedance. An additional impedance inside the treatment chamber is connected between the shaft and the housing of the treatment chamber, the value of the additional impedance being low in comparison to the capacitive impedance of the bearing. Suppression of the bearing currents is desirable to prevent electroerosive destruction of the bearings.
301482
Aktiengesellschaft Siemens
Fetherstonhaugh & Co.
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