Oil-Filled Station Service Transformers (46–362kV )

Property Specification

Type: High-Voltage Outdoor Oil-Filled Station Service Voltage Transformer / Step-Down SSVT (46 kV to 362 kV)

Features: Engineered for phase-to-ground connection across high-voltage grounded neutral grids from 46 kV up to 362 kV, this single-phase inductive unit steps down transmission-level voltage to supply low or medium-voltage power distribution panels. Built for flexible installation within substation footprints via single-phase support structures, it connects directly to the HV line to supply substation control panels or off-grid remote loads. Output voltage options span from 120 V up to medium-voltage levels, with single-phase power capacities ranging from 10 kVA to 167 kVA across all system voltages (and up to 333 kVA for 245 kV networks). Configurations are available for power delivery only or power combined with single/double-tapped voltage measurement metering windings. The hermetic oil insulation is protected by an overhead inert gas cushion that prevents ambient moisture ingress. Bushings are ANSI 70 gray with high creepage and flashover strike margins; porcelain is standard (polymer optional), while 362 kV models feature polymer insulation as standard.

Applications: Substation station service auxiliary power, low-power rail system supplies, remote industrial and mining site off-grid power, and cost-effective rural electrification.