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Auto Transformers (ICT), Oil-Immersed Voltage Transformer

Auto Transformers (ICT), Oil-Immersed Voltage Transformer

Auto Transformers (Interconnecting / ICT) are high-capacity transformers used in extra-high-voltage (EHV) transmission networks for interconnecting two voltage levels within the same grid. Unlike conventional two-winding transformers, auto transformers share a common winding between primary and secondary, resulting in reduced size, lower losses, and higher efficiency. Designed for 132kV to 400kV systems with capacities from 10MVA to 500MVA, they are fully compliant with IS 2026 and IEC 60076 standards

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  • Brand
  • Model
  • Type
  • Capacity Range
  • Primary Voltage (HV)
  • Secondary Voltage (LV)
  • Frequency
  • Core Material
  • Winding Material
  • Cooling Type
  • Insulation Class
  • Efficiency
  • Tap Changer
  • Vector Group
  • Installation

Sku: STE-T-AT-002
Brand: SPRINT ELECTRIC

Specification

Brand Sprint Electric
Model Auto Transformer (ICT)
Type Oil-Filled (Auto / Interconnecting)
Capacity Range 10MVA to 500MVA
Primary Voltage (HV) 132kV / 220kV / 400kV
Secondary Voltage (LV) 33kV / 66kV / 132kV / 220kV
Frequency 50Hz / 60Hz
Core Material CRGO Silicon Steel (Step-Lap)
Winding Material Electrolytic Copper
Cooling Type ONAN / ONAF / OFAF / ODAF
Insulation Class Class A / Class F
Efficiency Up to 99.7% at Full Load
Tap Changer OLTC (On-Load Tap Changer)
Vector Group YNa0 / YNa0d11 / Custom
Installation Outdoor (Substation Yard)