Ice melting circuit arrangement for a high-voltage transmission network
First Claim
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1. A high-voltage network comprising:
- a transmitting substation;
a receiving substation;
an overhead power transmission line connecting busbars of the transmitting and receiving substations;
a source for melting ice on said overhead power transmission line joined, during ice melting, to at least one disconnected phase of said overhead power transmission line; and
an insulated conductor joined, during ice melting, to at least one disconnected phase of said overhead power transmission line from its opposite ends.
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Abstract
A high-voltage network includes at least one overhead power transmission line provided with an insulated conductor,which line connects busbars of transmitting and receiving substations. A source for melting the ice is connected, in the course of ice melting, to at least one disconnected phase of the power transmission line. The insulated conductor is joined during ice melting to at least one disconnected phase of the overhead power transmission line from its opposite ends.
39 Citations
17 Claims
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1. A high-voltage network comprising:
- a transmitting substation;
a receiving substation;
an overhead power transmission line connecting busbars of the transmitting and receiving substations;
a source for melting ice on said overhead power transmission line joined, during ice melting, to at least one disconnected phase of said overhead power transmission line; and
an insulated conductor joined, during ice melting, to at least one disconnected phase of said overhead power transmission line from its opposite ends. - View Dependent Claims (2, 3, 4, 5, 6, 7, 14, 15)
- a transmitting substation;
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8. A high-voltage network comprising:
- a transmitting substation;
a receiving substation;
a main overhead power transmission line connecting busbars of said transmitting and receiving substations;
a source for melting ice which forms on said overhead power transmission line joined, during ice melting, to at least one disconnected phase of said main overhead power transmission line;
an insulated conductor connected, during ice melting, to at least one disconnected phase of said main overhead power transmission line from its opposite ends;
an additional overhead power transmission line leading from busbars of said receiving substation; and
an insulated conductor of said additional overhead power transmission line, one end of which is grounded and an other end of said insulated conductor is joined, during ice melting, to at least one disconnected phase of said additional overhead power transmission line. - View Dependent Claims (9, 10, 11, 12)
- a transmitting substation;
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13. A high-voltage network comprising:
- a transmitting substation;
receiving substations;
a main overhead power transmission line connecting busbars of said transmitting and receiving substations;
a source for melting ice which forms on said overhead power transmission line connected, during ice melting, to at least one disconnected phase of said main overhead power transmission line;
an insulated conductor connected, during ice melting, to at least one disconnected phase of said main overhead power transmission line at opposite ends thereof;
an additional overhead power transmission line leading from said busbars of said receiving substations of said main overhead power transmission line;
an insulated conductor of said additional overhead power transmission line, ends of which are connected, during ice melting, to one disconnected phase of said additional overhead power transmission line, said insulated conductor of said additional power transmission line being grounded between said receiving substations of said main and additional overhead power transmission lines or at said receiving substation of said additional overhead power transmission line.
- a transmitting substation;
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16. A high-voltage network comprising:
- a transmitting substation;
receiving substations;
a main overhead power transmission line connecting busbars of said transmitting and receiving substations;
a source for melting ice, which forms on said overhead power transmission line, joined, during ice melting, to at least one disconnected phase of said main overhead power transmission line;
an insulated conductor connected, during ice melting, to at least one disconnected phase of said main overhead power transmission line at the opposite ends thereof;
an additional overhead power transmission line leading from said busbars of said receiving substation of said main overhead power transmission line;
an insulated conductor of said additional overhead power transmission line, ends of which are connected, during ice melting, to one disconnected phase of said additional overhead power transmission line;
another additional overhead power transmission line leading from the sectionalized busbars of an additional substation;
an insulated conductor one end of which is grounded and another end of which is connected, during ice melting, to at least one disconnected phase of another additional overhead line leading from said busbars of said additional substation.
- a transmitting substation;
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17. A device in a high-voltage network for automatic actuation of a circuit for melting ice which forms on overhead power transmission lines, comprising electrical circuit means composed of a series-connected short circuiter and a separator through which insulated conductors are connected during ice melting to at least one disconnected phase of a power transmission line, and at least one voltage sensor which controls said short circuiters and separators in response to a voltage of a specified value applied to said at least one voltage sensor.
Specification