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Multi-Sided Switchyard Gantries 220 and 330 kV: Sizes, Heights, Bays
The sizes of multi-sided switchyard gantries for 220 and 330 kV: marks, types, heights to the crossarm and ground-wire post, bay lengths, the numbers of ground-wire posts and lightning rods, and product cards.
Contents
The 220 and 330 kV multi-sided gantry series
Multi-sided switchyard gantries are made of bent steel posts with a multi-sided section. The designations of the ПС-220…-Б and ПС-330…-Б series (PS-220…-B and PS-330…-B in Latin letters; on the drawings they are written in Cyrillic) repeat those of the typical gantries in the catalogue Typical Unified Switchyard Portals 35–500 kV, but the posts here are multi-sided. How they beat the typical lattice gantries is explained in Polygonal Switchyard Portals: Advantages over Typical Designs, Design of Portals and Foundations.
The type of the gantry is given by the letter in the mark: Ш — busbar, Я — bay, П — jumper, Т — transformer. The gantries are designed for the loads of the typical series 3.407.9-149.0. For each mark the tables give the height to the crossarm and to the ground-wire post, the bay length, and the numbers of bays, ground-wire posts and lightning rods; the mark itself leads to a page with the drawing and the PDF product card. 35, 110 and 150 kV gantries are on the page Multi-Sided Switchyard Gantries 35–150 kV.
Multi-sided switchyard gantries 220 kV: sizes of the ПС-220…-Б series
The ПС-220…-Б series has five marks: the busbar gantry ПС-220Ш2-Б and the bay gantries ПС-220Я1-Б to ПС-220Я4-Б. The height to the crossarm is 11.35 m for the busbar gantry and 17 m for the bay gantries; the bays are 14.5 and 15.4 m respectively.
Where a ground-wire post is fitted, it stands 6 m above the crossarm (23 m) and the lightning rod rises another 7.5 m, so the overall height is 30.5 m. Only ПС-220Ш2-Б and ПС-220Я1-Б have no ground-wire posts and lightning rods: their overall height equals the height to the crossarm. The marks have 1 or 2 bays (ПС-220Я4-Б has two).
| Mark | Height to the crossarm, m | Height to the ground-wire post, m | Overall height, m | Bay length, m | Number of bays | Number of ground-wire posts | Number of lightning rods |
|---|---|---|---|---|---|---|---|
| ПС-220Ш2-Б | 11.35 | — | 11.35 | 14.5 | 1 | — | — |
| ПС-220Я1-Б | 17 | — | 17 | 15.4 | 1 | — | — |
| ПС-220Я2-Б | 17 | 23 | 30.5 | 15.4 | 1 | 1 | 1 |
| ПС-220Я3-Б | 17 | 23 | 30.5 | 15.4 | 1 | 2 | 1 |
| ПС-220Я4-Б | 17 | 23 | 30.5 | 15.4 | 2 | 3 | 2 |
Layouts and heights that are not in the table are designed individually.
Multi-sided switchyard gantries 330 kV: sizes of the ПС-330…-Б series
The ПС-330…-Б series has eleven marks of four types: the busbar gantry ПС-330Ш1-Б, the jumper gantries ПС-330П1-Б to ПС-330П4-Б, the transformer gantries ПС-330Т1-Б and ПС-330Т2-Б, and the bay gantries ПС-330Я1-Б to ПС-330Я4-Б. All have a 16 m bay; the height to the crossarm is 15 m, and 10 m for the busbar gantry ПС-330Ш1-Б.
Where a ground-wire post is fitted, it stands 6 m above the crossarm (21 m) and the lightning rod rises another 7.5 m, so the overall height is 28.5 m. ПС-330Ш1-Б, ПС-330П2-Б, ПС-330П4-Б, ПС-330Я2-Б and ПС-330Я4-Б have no ground-wire posts and lightning rods. Marks of one type with one and two bays differ in the number of bays: for example, ПС-330П1-Б and ПС-330П3-Б.
| Mark | Height to the crossarm, m | Height to the ground-wire post, m | Overall height, m | Bay length, m | Number of bays | Number of ground-wire posts | Number of lightning rods |
|---|---|---|---|---|---|---|---|
| ПС-330Ш1-Б | 10 | — | 10 | 16 | 1 | — | — |
| ПС-330Я1-Б | 15 | 21 | 28.5 | 16 | 1 | 1 | 1 |
| ПС-330Я2-Б | 15 | — | 15 | 16 | 1 | — | — |
| ПС-330Я3-Б | 15 | 21 | 28.5 | 16 | 2 | 1 | 1 |
| ПС-330Я4-Б | 15 | — | 15 | 16 | 2 | — | — |
| ПС-330П1-Б | 15 | 21 | 28.5 | 16 | 1 | 1 | 1 |
| ПС-330П2-Б | 15 | — | 15 | 16 | 1 | — | — |
| ПС-330П3-Б | 15 | 21 | 28.5 | 16 | 2 | 1 | 1 |
| ПС-330П4-Б | 15 | — | 15 | 16 | 2 | — | — |
| ПС-330Т1-Б | 15 | 21 | 28.5 | 16 | 1 | 1 | 1 |
| ПС-330Т2-Б | 15 | 21 | 28.5 | 16 | 2 | 1 | 1 |
Layouts and heights that are not in the table are designed individually.
Material, design loads and corrosion protection
The gantries are made of steel C245 and C345 to DBN V.2.6-198:2014. All steel elements are protected by hot-dip galvanising to DSTU EN ISO 1461:2024. The loads are calculated according to the typical series 3.407.9-149.0; if the substation design has other loads, we recalculate the gantry and design it for them.
How to order a gantry
To work out the price, send the voltage class, the mark or type of the gantry, the wind and ice regions, the seismicity and the site. Layouts and heights that are not in the tables are designed individually for the substation. Erection is carried out by a licensed construction partner company.
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Questions about multi-sided gantries for 220 and 330 kV
Which sizes of multi-sided gantries for 220 and 330 kV do you make?
For 220 kV, the ПС-220…-Б series of five marks (ПС-220Ш2-Б and ПС-220Я1-Б to ПС-220Я4-Б); for 330 kV, the ПС-330…-Б series of eleven (one busbar, four jumper, two transformer and four bay gantries). The heights, bays and numbers of ground-wire posts and lightning rods are in the tables above. If another layout is needed, we design the gantry individually.
How do the jumper, transformer and bay types differ?
The type is given by the letter in the mark: П — jumper, Т — transformer, Я — bay, Ш — busbar. The 330 kV marks have the same height to the crossarm and bay (15 and 16 m, except the busbar ПС-330Ш1-Б), and differ in composition: the numbers of bays, ground-wire posts and lightning rods are in the 330 kV table.
Where can I get the product card and the drawing of a gantry?
In the tables each mark is a link to the gantry page: it has the drawing, the parameters and a “Product card — download PDF” button.
Related products: Substation gantries · Hot-dip galvanising
More on this topic: Typical Substation Gantries 35–500 kV · Multi-sided Substation Gantries: Design and Foundations · Multi-Sided Switchyard Gantries 35–150 kV: Sizes, Heights, Bays · Installing a Substation Gantry: Slinging, Setting the Shafts and Crossbeam, Tightening the Bolts · What Is a Substation Gantry: Purpose and Voltage Classes · Restoring Damaged Substation Switchyard Portals
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