Traction Rectifier Transformer, 35 kV (Um 12/40.5 kV), 500 kVA–8 MVA — ZQSC

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Special Transformers
500 kVA – 8 MVA10 kV

Traction duty means relentless cyclic loading and harmonic-rich currents. The ZQSC is engineered around that reality: impedance and winding arrangement are coordinated with the rectifier bridge to limit circulating current and harmonic loss, and the thermal design assumes a full day of rush-hour cycling rather than a steady load.

Model / SeriesZQSC series
Rated Capacity500 kVA – 8 MVA
Voltage Level10 kV / 35 kV primary; 590–1180 V secondary
Um (IEC 60071-1)12/40.5 kV
PhaseThree-phase (multi-winding)
Cooling MethodONAN / ONAF
Executive StandardIEC 61378-1
  • Designed for 750 V / 1500 V DC traction
  • 12-pulse and 24-pulse configurations
  • Thermal design for cyclic rush-hour load
  • Coordinated impedance and rectifier bridge
  • For metro, light rail and tram substations

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Traction Rectifier Transformer, 35 kV (Um 12/40.5 kV), 500 kVA–8 MVA — ZQSC

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