Comment fonctionne un testeur tan delta pour l’huile de transformateur ?
- This topic has 1 reply, 2 voices, and was last updated 6 months, 4 weeks ago by Émile Bouvet-Brunel.
Answers
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October 9, 2024 at 6:08 am by Émile Bouvet-Brunel
Un testeur tan delta mesure les pertes diélectriques dans l’huile de transformateur, indiquant la qualité de l’isolation. Le processus comprend :
Application d’une tension AC : Une tension alternative est appliquée à l’huile isolante.
Mesure du déphasage : Le décalage entre la tension et le courant est mesuré.
Calcul du tan delta : Le rapport entre la composante résistive et réactive du courant donne le tan delta.
Interprétation des résultats : Un tan delta élevé suggère des pertes d’énergie et une dégradation de l’isolation, indiquant la présence d’humidité ou de contaminants.
GlobeCore propose des testeurs tan delta précis, facilitant l’évaluation rapide de la santé de l’huile et permettant une maintenance proactive pour assurer la fiabilité des transformateurs.
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