Tests and calculations of short‐circuit forces and displacements in high‐voltage substations with strained conductors and droppers

Stein, Norbert; Meyer, W.; Miri, A.M.

doi:10.1002/etep.4450100302

Cited by 3 publications

(3 citation statements)

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“…Research centers around the world have already been interested in studying the phenomenon of electrodynamic interactions for short overhead spans in switching stations. Calculation of the dynamic effects in power distribution substations with flexible conductors has been discussed by many authors [1][2][3][4][5][6][7]. In the nineties, the issue was also addressed by CIGRÉ.…”

Section: Introductionmentioning

confidence: 99%

“…Based on the obtained results, they developed a calculation method taking into account short circuit duration, which leads to reduced forces and displacements in the case of brief current flows. In reference [6], Stein et al conducted extensive short circuit tests on substation bus bars of stranded conductors with and without droppers. These tests included 100 and 400 kV systems.…”

Section: Introductionmentioning

confidence: 99%

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Estimation of Short Circuit Duration for the Assessment of Dynamic Effects in Distribution Substations with Flexible Conductors

et al. 2020

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The paper focuses on finding short circuit duration for computing the dynamic effects in Extra High Voltage (EHV) distribution substations with flexible conductors with the use of probabilistic method. To find fault duration for selected substation points, a risk criterion was involved, namely the expected annual frequency of exceeding the calculated values of dynamic forces. A dedicated simulation model based on the Monte Carlo method was used to analyze the dynamic effects of short circuit current flow in the substation during faults within it and in its vicinity. The short circuit duration model is the key part of the simulation model. Due to the discussion of how the selected factors affect the estimated short circuit duration, indications helpful to find the values of the latter were formulated and some examples for the 220 kV distribution substation were given.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Estimation of Short Circuit Duration for the Assessment of Dynamic Effects in Distribution Substations with Flexible Conductors

et al. 2020

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“…One of the significant effects of the short-circuit current flow through the bus conductors are the dynamic forces on the supporting structures. The computation of dynamic effects in the substations with flexible conductors has been a question discussed by the Polish and foreign authors [1,11,12,14,15,18,19].…”

Section: Introductionmentioning

confidence: 99%