Analysis and experiment of conductive rod of high voltage casing considering creep condition
Transformer bushings are used in large quantities in substations, and their operational reliability directly affects the operational safety of equipment and the power grid. The conductor rod is a crucial component of a high-voltage (HV) casing, and any breakage can trigger line protection actions an...
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| Main Authors: | , , , , , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
AIP Publishing LLC
2024-12-01
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| Series: | AIP Advances |
| Online Access: | http://dx.doi.org/10.1063/5.0244491 |
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| Summary: | Transformer bushings are used in large quantities in substations, and their operational reliability directly affects the operational safety of equipment and the power grid. The conductor rod is a crucial component of a high-voltage (HV) casing, and any breakage can trigger line protection actions and lead to significant economic losses. Since the conductive rod is subjected to the tension exerted by the compression spring for a long time and the influence of other external tensions, it is in a state of slow creep, and thus the conductive rod gradually fails. Therefore, this paper investigates the stress and deformation of the conductor rod in a 750 kV HV casing under service conditions that take creep characteristics into account. First, a finite element model of the rod connector considering creep characteristics is established. Second, stress and deformation experiments of the sample are carried out, considering the effect of creep characteristics. Finally, the experimental results are compared with the simulation results to verify the accuracy of the simulation. |
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| ISSN: | 2158-3226 |