La selección de un transformador AC de alta tensión depende de tensión, kVA, corriente de salida, medición y protección.
Testing equipment links are kept for readers who want to compare related machines.
Datos técnicos utilizados
- 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.
Consejos de selección
Conviene empezar por el tipo de aislador, clase de tensión, ensayo seco o húmedo y norma aplicable. Los ejemplos de 150kV/50kVA y 250kV/100kVA ayudan a definir el alcance.
Un sistema completo debe incluir transformador, resistencia de protección, divisor capacitivo, control, medición e interbloqueos de seguridad.
Lista de verificación del comprador
- 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
Preguntas frecuentes
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.
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