A power transformer is used to step voltage up or down at the generation and transmission level of the electrical network — moving large amounts of power efficiently between power stations, substations, and major industrial consumers. This sets it apart from a distribution transformer, which operates at lower voltages closer to the end user.
Key attributes
Place of origin
Bhopal, MP, India
Phase
Three-phase
Mounting
Plinth
Frequency
50 Hz
Impedance
7.15%
Efficiency
≥ 98%
Tap Changer
Off-circuit, as per customer specification
Cooling Type
ONAN
Power Rating
Upto 10 MVA
Vector Group
Dyn11
Core Material
CRGO (cold-rolled grain-oriented steel)
Voltage Rating
33/11 kV
Insulation Class
A/F
Temperature Rise
45°C Oil / 50°C Winding
Testing Standard
IS 2026, IEC
Winding Material
Copper
Protection Rating
IP55
Voltage Regulation
< 5%
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