Prediction method of haloing field intensity for UHV split conductors considering altitude correction
A technology of halo initiation field strength and split wires, applied in the direction of measuring electricity, measuring devices, measuring electrical variables, etc., can solve problems such as limiting the use of Peek formulas, and achieve the effect of improving safety and economy
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[0026] A method for predicting the halo intensity of split conductors considering altitude correction, comprising the following steps:
[0027] Step 1: Build a predictive model:
[0028]
[0029] Among them, n is the split number, r 0 is the radius of the sub-conductor, a 4 , b 4 , c are the first to third parameters of the model respectively; δ' is the relative air density parameter, and the calculation method is:
[0030]
[0031] In the formula: H is the altitude above sea level in kilometers; k 1 is the fourth model parameter;
[0032] Step 2: Measure the altitude H and the radius r of the sub-conductor 0 , split number n;
[0033] Step 3: Calculate the halo field strength value.
[0034] The first to fourth parameters are: 35.75, 0.74, -1.34, 10.7 sub-wire radius 1.34cm≤r 0 ≤1.995cm, split number 4≤n≤12, altitude 19m≤H≤4000m.
[0035] This embodiment can accurately predict the halo initiation field strength of the sub-conductor with a radius of 1.34cm-1.995...
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