What question did this study set out to answer?

To review the initiation mechanisms, multi-physical influencing factors, and additive-based suppression methods associated with electrical tree degradation in HVDC and HVAC cable insulation.

April 6, 2020High VoltageOpen Access

Electrical tree degradation in high‐voltage cable insulation: progress and challenges

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To review the initiation mechanisms, multi-physical influencing factors, and additive-based suppression methods associated with electrical tree degradation in HVDC and HVAC cable insulation.
Synthesized literature on theoretical initiation models, including Maxwell electromechanical stress, charge injection-extraction, charge trapping, and electroluminescence.
Evaluated the operational impacts of coupled multi-physical fields such as high electric fields, elevated temperatures, and mechanical stress on tree growth.
Assessed chemical suppression strategies incorporating organic and inorganic additives and analyzed their microscale-to-macroscale insulation mechanisms.
Identified electrical treeing as a primary pre-breakdown degradation pathway governed by localized charge transport and electromechanical stress in dielectric polymers.
Found that incorporating inorganic and organic additives inhibits tree growth by modifying material microstructure and altering charge trapping dynamics.
Determined that future advances require high-precision initiation modeling and better multi-field coupling, while industrial implementation in commercial cables remains challenging.

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Implication

Review outlines electrical tree degradation mechanisms and suppression strategies in high-voltage cable insulation, highlighting challenges for reliable power transmission.

Cite This Study

Su et al. (2020) studied this question.

synapsesocial.com/papers/6a712fbb31a3df82432965ea https://doi.org/10.1049/hve.2020.0009

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Implication

Review outlines electrical tree degradation mechanisms and suppression strategies in high-voltage cable insulation, highlighting challenges for reliable power transmission.

Electrical tree degradation in high‐voltage cable insulation: progress and challenges

Key Points

Discussion

Implication

Cite This Study

Electrical tree degradation in high‐voltage cable insulation: progress and challenges

Key Points

Discussion

Implication

Cite This Study

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