Description:

A 100 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 low voltage for various applications, including industrial and commercial settings. These transformers are typically three-phase and can be designed as oil-immersed or dry-type units.

Key Specifications:

• Rated Power: 100 kVA
• Primary Voltage: 20 kV
• Secondary Voltage: 0.4 kV
• Frequency: 50 Hz or 60 Hz
• Cooling Method: Oil-immersed (ONAN) or Dry-type (AN)
• Winding Material: Copper or Aluminum
• Vector Group: Dyn11 or Yyn0
• Impedance Voltage: Approximately 6%
• Tap Changer Range: ±2 x 2.5%