Method and system for real-time monitoring of analog wire coated by ice of overhead power transmission line
A technology of overhead transmission line and real-time monitoring system, which is applied in the early warning of icing on transmission lines, monitoring, monitoring and prevention of icing on overhead transmission line conductors, and can solve the problems of less measuring equipment, more parameters, and low labor efficiency. Achieve the effect of simple algorithm, avoid tripping, and satisfy early warning
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[0031] Embodiment 1: The following further describes the present invention in combination with specific embodiments, but the protection scope of the present invention is not limited to this:
[0032] Take a 500kV line ice-coated conductor as an example, the conductor 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, and the gear distance of the 5th gear is 437m, the height difference is 1.0m, and the installation sag is 14.20m.
[0033] The basic parameters of a single wire are: calculated cross-section 666.55mm 2 ; Outer diameter 33.60mm; unit mass 2.06kg / m; elastic coefficient 63000N / mm 2 ;Linear expansion coefficient 20.9x10 -6 1 / ℃.
[0034] Such as figure 2 As shown, the real-time monitoring system for the icing analog wire of the overhead transmission line includes: a cylindrical measuring head 1, a control device 7, an analog wire 6, and a control host of the master station; the analog wire 6 is a ...
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