Description:

A 1000 kVA transformer with a primary voltage of 20 kV and a secondary voltage of 0.4 kV is commonly used in electrical distribution systems to step down medium voltage to a lower voltage suitable for commercial or industrial applications. These transformers are typically three-phase and can be designed as oil-immersed units.

Key Specifications:

• Rated Power: 1000 kVA
• Primary Voltage: 20 kV
• Secondary Voltage: 0.4 kV
• Frequency: 50 Hz
• Cooling Method: Oil-immersed, Natural Air Cooling (ONAN)
• Winding Material: Copper or Aluminum
• Vector Group: Dyn11
• Impedance Voltage: Approximately 6%
• Tap Changer Range: ±2 x 2.5%