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Cable expert jian-min tao: tight grasp opportunities is the key




High voltage dc cable transmission capacity is not only communication cable 2 times, and only 40% of the communication cable transmission power loss and the transmission distance greatly extended. "Professor li-sheng zhong xi 'an jiaotong university in 2013 ul international symposium on wire and cable power cable professional exhibition said.

Li-sheng zhong stressed that in our country, central, southern and eastern coastal economic developed area accounted for 75% of the total demand for electricity demand distribution, the coal and electricity, water and electricity resources of our country mainly concentrated in the west and north.

Li-sheng zhong said, as the country "China", "north south electricity to send" and other projects, the main force of high voltage direct current cables will be applied to. In addition, new energy and urban scale access transmission cable construction, all need to application of high voltage direct current cables. High voltage dc cable is offshore wind, sea island's only means of transmission.

Li-sheng zhong said, high-voltage direct current transmission compared with the high voltage ac transmission, prominent superiority. First, the high-voltage direct current transmission line corridors, and more narrow, low cost; Second, high-voltage direct current transmission breakdown strength is high, its working voltage is about 3 times of the ac power; Third, the high-voltage direct current transmission capacity is larger; Fourth, the high-voltage direct current transmission power loss low skin effect, no reactive power loss; Fifth, high-voltage direct current transmission distance transmission efficiency is not affected by the capacitive current, without synchronization between power grid operation.

Li-sheng zhong pointed out that the high voltage dc cable application prospect. High voltage dc cable transmission capacity is not only communication cable 2 times, and only 40% of the communication cable transmission power loss and the transmission distance greatly extended.

On July 18, 2013, 2013 ul international exhibition of wire and cable power cable professional seminar in dongguan, guangdong modern international exhibition center held the lecture hall.




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