Le choix d’un transformateur d’essai haute tension AC dépend de la tension, de la puissance kVA, du courant de sortie, de la mesure et de la protection.
Testing equipment links are kept for readers who want to compare related machines.
Faits techniques utilisés
- 150kV/50kVA system for 33kV glass, porcelain and polymer insulators.
- 250kV/100kVA system for 11kV to 66kV glass, porcelain and polymer insulators.
- IEC 60060-1:2010 and IEC 60060-2:2010 are listed as applied standards.
- Both examples use single-phase 50Hz output and a 1000:1 voltage turns ratio.
- The 150kV system lists 0.333A output current; the 250kV system lists 0.4A output current.
Conseils de sélection
Il faut partir du type d’isolateur, de la classe de tension, de l’essai sec ou humide et de la norme demandée. Les exemples 150kV/50kVA et 250kV/100kVA montrent comment cadrer une demande technique.
Un système complet doit inclure transformateur, résistance de protection, diviseur capacitif, commande, mesure et dispositifs de sécurité.
Liste de contrôle acheteur
- Insulator type and rated voltage class
- Dry, wet, flashover, withstand or puncture test requirement
- Target maximum voltage and required kVA
- IEC or customer standard to follow
- Available power supply and laboratory clearance
- Preferred reporting and protection functions
FAQ
Can one AC test transformer cover several voltage classes?
Yes, if the maximum voltage, kVA, current and laboratory safety margin are planned correctly. Many laboratories buy one system that covers several product families.
Is IEC 60060 relevant for insulator testing systems?
Yes. IEC 60060 defines high-voltage test techniques and measurement requirements that affect transformer, divider and control system selection.
Contactez Contune pour une recommandation adaptée. Contact page.