Device for melting the icing by direct current on conductors of

Details Device for melting the icing by direct current on conductors of Device for melting the icing by direct current on conductors of

1977-07-11

1978-04-04

Schaefer, Robert K.

Electrical transmission or interconnection systems

Conductor arrangements or structure

219209, H02B 100

Patent

active

040829626

ABSTRACT:
The device for melting the icing by direct current through conductors of an overhead power transmission line comprises a rectifier coupled during the ice melting period by its lead-out wires to the disconnected conductor of the power transmission line, a ground wire, and a current filter set in resonance to the line at the commercial frequency, which is, for example, a capacitor bank connected in series to a reactor, whose lead-out wires are connected in parallel to the direct-current voltage lead-out wires of said rectifier.
This device can be used to melt the icing by direct current through conductors and cables of overhead power transmission lines within a voltage range from 110 to 220 kv and more.

REFERENCES:
patent: 2240772 (1941-06-01), Hampe et al.
patent: 2870311 (1959-01-01), Greenfield et al.

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