Cold-climate projects must contend with extreme low ambient temperature, cold start after long idle periods, snow and ice loading, and condensation during temperature swings. Haocheng box substations and transformers (S11/S13/SHB15/SCB10/SCB11) are specified for these conditions.
Ambient down to -40C and below (to -60C on request); low-temperature-resistant steels and sealing materials are specified.
Units are prepared for energisation after prolonged idle periods in low ambient, with cold-start review of oil viscosity and auxiliary circuits.
Enclosure roof loading, snow shedding and ice protection for doors, louvres and cable entries.
Anti-condensation heaters and ventilation strategy to limit internal moisture during temperature swings.
Insulated steel enclosure rated IP54+ with snow and ice protection and anti-condensation heating where required.
Oil-immersed S11/S13 with low-temperature oil specification; dry-type SCB10/SCB11 for heated indoor rooms.
50-2500 kVA with 6/10 kV or 10/20 kV input; common output 400V at 50Hz, configurable per project.
KYN28A-12 / HXGN HV chambers and GCK/GCS/MNS LV distribution per the single-line diagram.
Equipment is supplied to IEC standards with CE marked and CCC. Export documentation is provided, and we support Eurasian conformity work (EAC / GOST frameworks) with the technical file, test reports and documentation required by the destination authority. Share your project parameters for selection.
Standard design covers -25C to +40C; cold-climate execution extends operation to -40C and, on request, to -60C with appropriate materials.
Cold-start review covers oil viscosity, auxiliary circuits and Protection settings so the unit can be energised after long idle periods in low ambient.
Oil-immersed S11/S13 with low-temperature oil suits outdoor substations; dry-type SCB10/SCB11 suits heated indoor rooms.
Anti-condensation heaters with a controlled ventilation strategy limit internal moisture during temperature swings.
IEC-based test reports, CE marked and CCC documentation, export documents, plus technical file support for EAC / GOST conformity.