High voltage electrical network with DC ice-melting device and c

Electrical transmission or interconnection systems – Conductor arrangements or structure

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219209, H02J 1100

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active

041198662

ABSTRACT:
A high-voltage electrical network comprises neutral conductors, at least two of them being grounded, and at least two ground circuits, at least one of them being connected to a neutral conductor and functioning as a first operational grounding means which is a part of a circuit for melting the icing by direct current on one of the lines of the high-voltage electrical network. The ice melting circuit is also provided with at least one more series-connected operational grounding means, a heated circuit of a high-voltage electrical network, a device for melting the icing by direct current on one of the lines of the high-voltage electrical network and a ground used as a return conductor. The high-voltage electrical network, additionally comprises at least one device, for preventing the direct current from flowing to the neutral conductors of the high-voltage electrical network, connected to one of the neutral conductors, coupled to one of the ground circuits used as an operational grounding means and forming a part of a circuit for melting the icing on one of the lines of the high-voltage electrical network by direct current, and to the same ground circuit.

REFERENCES:
patent: 2240772 (1941-05-01), Hampe et al.

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