Real-time monitoring method of ice coated on overhead transmission line conductor and system
A technology of overhead transmission line and real-time monitoring system, which is applied in the fields of monitoring and prevention, early warning of icing on transmission lines, and monitoring of transmission line conductors. It can solve problems such as low temperature, camera failure, and low labor efficiency.
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[0036] Example 1: Take the first tensile section of a 500kV line ice-coated conductor as an example, the 4th gear (#147-#148) and the 5th gear (#148-#149), the wire model is 4*LGJ-630 / 45, the gear distance of the 4th gear is 352m, the height difference is 39.0m, the installation sag is 9.27m, the gear distance of the 5th gear is 437m, the height difference is 1.0m, and the installation sag is 14.20m. The installation environment The temperature is 0°C and the horizontal tension is 33950N. The length of the suspension insulator string is 5.5m and the weight is 1960N.
[0037] The basic parameters of the wire are: calculated cross-section 666.55mm 2 ; Outer diameter 33.60mm; unit mass 2.06kg / m; elastic coefficient 63000N / mm 2 ; The coefficient of linear expansion is 20.9x10-61 / ℃.
[0038] The real-time monitoring system for conductor ice coating of overhead transmission lines includes a tilt-temperature monitoring device 1, a deviation angle-wind declination monitoring device 2, an...
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