Method for calculating maximum voltage withstanding position of zero load high voltage power cable
A high-voltage power and cable technology, applied in the field of electric power, can solve problems such as the inability to solve the problem of sinusoidal traveling wave calculation
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[0065] The present invention will be further described below in conjunction with the accompanying drawings. The following examples are only used to illustrate the technical solution of the present invention more clearly, but not to limit the protection scope of the present invention.
[0066] like figure 1 As shown, a method for calculating the highest withstand voltage position of no-load high-voltage power cables includes the following steps:
[0067] 1) Calculate the resistance, inductance, capacitance and admittance parameters of the cable loop unit length according to the cable structure parameters.
[0068] The specific calculation formula is as follows:
[0069] R θ =[R 1 +R 2 +(R 1 kappa 1 +R 2 kappa 2 )(θ-20)] / n
[0070] Among them, R θis the DC resistance of the cable loop at temperature θ, R 1 is the DC resistance of the cable core conductor per unit length at temperature θ, R 2 is the DC resistance of the cable sheath conductor per unit length at tempe...
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