They carry the fastening of the bushing wires of the substation's power transformers. Voltage classes 35-500 kV, production according to standard designs or the customer's project.
| Type of portal | Transformer stations |
| Purpose | Fixing transformers |
| Voltage class | 35 · 110 · 220 · 330 · 400 · 500 kV |
| Design | Lattice racks with a traverse, U-shaped frame |
| Material | Steel 09G2S-12 / S345-3 or St3ps5 / S245, S255 |
| Corrosion protection | Hot-dip galvanising to GOST 9.307-21 |
| Manufacturing | To standard type designs or to the customer's structural drawings |
| Scope of supply | Shipping sections and fasteners; pile caps and embedded parts on request |
| Adjacent structures | Searchlight masts, lightning rods, grillings and metal beams |
| Documents | Data sheet, steel certificates and corrosion protection documentation |
The weight and dimensions of the structure are specified when issuing drawings КМД for the scheme ОРУ and the climatic region of the facility.
The design is selected according to the scheme ОРУ and the voltage class of the substation.
Transformer portals ОРУ Carry the fastening wires of the busbars of the substation's power transformers.
The portal is a U—shaped frame made of lattice racks with a traverse, on which the busbar of an open switchgear is suspended. Unlike closed control rooms, the power conductors here are located outside, so the design is designed for wind and icy loads in the installation area.
Anti—corrosion protection - hot dip galvanizing according to ГОСТ 9.307-21. We manufacture according to standardized standard designs and according to customer drawings, complete with grillings, embedded parts and lighting and lightning protection structures.
We receive the schedule, questionnaire or structural drawings.
We select the types for the route and climatic region and calculate the cost.
We issue working drawings and manufacture the structures with hot-dip galvanising.
Shipped as sections by road or rail.
They carry the fastening of the bushing wires of the substation's power transformers. The type of portal is set by the ОРУ scheme in the substation design: each carries its own hub, and one cannot be replaced by another.
Voltage class ОРУ, circuit diagram of the switchgear or drawings КМ, span between the posts and the height of the traverse, wind and icy area. If there is no project, please describe the task and select a design.
Usually, the same set includes grillings and metal beams for equipment, embedded parts, searchlight masts and lightning rods for lighting and lightning protection of the territory ОРУ.
Yes. We work on standardized standard designs depending on the voltage class, and according to the customer's drawings КМ with the release of working drawings КМД.
Send us a diagram ОРУ or drawings КМ. We will select the design and prepare the calculation.
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