On-Load Capacity-Regulating Transformer, 10 kV (Um 12 kV), 100–630 kVA — SZ13-MZT

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Special Transformers
100 – 630 kVA10 kV / 0.4 kV

Rural and suburban feeders swing between very light load and short heavy peaks, usually around irrigation or heating seasons. A capacity-regulating transformer changes its own winding connection on load, cutting no-load loss dramatically during the light months while still delivering the full rating at peak — an efficiency gain no fixed-ratio unit can match.

Model / SeriesSZ13-MZT-100~630/10
Rated Capacity100 – 630 kVA (dual rating)
Voltage Level10 kV / 0.4 kV
Um (IEC 60071-1)12 kV
PhaseThree-phase
Cooling MethodONAN
Executive StandardIEC 60076
  • Switches capacity on load to cut no-load loss
  • Adjusts voltage at the same time
  • For seasonal and agricultural feeders
  • Remote control and monitoring option
  • Significant lifetime energy saving

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On-Load Capacity-Regulating Transformer, 10 kV (Um 12 kV), 100–630 kVA — SZ13-MZT

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