9. Future prospects
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The main developments underway on SEM equipment concern :
combining the functions of several devices into a single device, e.g. disconnector and earthing switch, disconnector and circuit breaker, thus limiting the total number of devices;
possibly associated with the previous point, the reduction in the number of compartments ;
simplifying the replacement of a defective component, for example by using plug-in systems.
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A current development in measurement transformers will be applied to SEM equipment. These new devices, known as "transducers" and currently undergoing international standardization, will use :
Rogowsky coils or Faraday...
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Future prospects
Bibliography
Articles
International standards and technical reports
- Sectionneurs et sectionneurs de terre à courant alternatif. - CEI 60 129 - 1984
- Spécifications et réception de l'hexafluorure de soufre neuf. - CEI 60 376 - 1971
- Guide relatif au contrôle de l'hexafluorure de soufre (SF6) prélevé sur le matériel électrique. - CEI 60 480 - 1974
- Appareillage sous enveloppe métallique à isolation gazeuse de tension assignée égale ou supérieure...
French regulations
Metal-clad switchgear manufacturers
ABB Energie S.N.C., Établissement de Persan.
ALSTOM Transmission et Distribution SA, Postes Blindés Haute Tension, Aix-les-Bains.
Schneider Electric High Voltage SA, Site B1, Grenoble.
SIEMENS SAS, Division Énergie, Saint-Denis.
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