Ground wire DC (direct current) deicing method based on discharge gap insulator
A DC ice melting and discharge gap technology, applied in cable installation, electrical components, overhead installation, etc., can solve problems such as inability to implement ice melting, improve efficiency and safety, reduce system capacity, and avoid tower breakdown and disconnection Effect
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Embodiment 1
[0022] (1) Enter the area where the ice-melting transmission line is located and search for the ice-covered overhead ground wire of the transmission line in the area;
[0023] (2) A piece of insulator is connected in series between the ice-coated overhead ground wire searched in step (1) and the transmission line tower, so that the ice-coated overhead ground wire is transformed into an insulated overhead ground wire;
[0024] (3) A fitting is connected in parallel between the insulator of the insulated overhead ground wire obtained in step (2) and the iron tower of the transmission line described in step (2);
[0025] (4) Short-circuit the ends of the secondary insulated overhead ground wires of the discharge gap generated in step (3);
[0026] (5) Equipped with a DC ice-melting device. Connect one of the two insulated overhead ground wires in step (3) to the positive pole of the DC ice-melting device, and the other insulated overhead ground wire to the negative pole of the D...
Embodiment 2
[0033] Steps (1) to (2) are the same as in Example 1;
[0034] (3), a lightning arrester is connected in parallel between the insulator of the insulated overhead ground wire obtained in step (2) and the iron tower of the transmission line described in step (2);
[0035] Steps (4) to (10) are the same as in Example 1.
[0036] The above-mentioned method for melting the ice of the ground wire based on the discharge gap insulator has been proved to have a good melting effect, fully meets the design expectation, and is easy to operate. Using this method to carry out the icing work of the overhead ground wire can effectively implement the icing of the overhead ground wire, improve the overall anti-icing ability of the transmission line, and ensure the safety and reliability of the power grid.
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