PST-b 20/630

Technical parameters, electrical diagram, downloads, a description of the type of container transformer station PST-b 20/630 production ZPUE S.A.

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In case the “conventional, on-ground” station cannot be placed owing to architectural limitations, the only solution is underground stations. The underground transformer station is a leakproof, monolithic concrete container adapted to be placed under the ground, with medium and low voltage switchgears installed inside. MV (TPM, Rotoblok SF) and LV (RN-W) switchgears are independent elements of the station. The station can be installed on the pavement, square, etc.
Bilges between two floors allow for proper functioning even when surface rain water leaks through the ventilation holes. Water-proof cable glands and tight concrete housing ensure reliable and long-term work of the station.

Station type PST-b 20/630

General view of the station type PST-b 20/630
General view of the station type PST-b 20/630
Top view of the station type PST-b 20/630
Top view of the station type PST-b 20/630

Diagram of the standard station type PST-b 20/630

Schemat standardowej stacji typu PST-b 20/630


  1. Optional station equipment is marked in red. oznaczono wyposażenie opcjonalne stacji. More information about the selection of switchgears and their equipment can be found in categories of switchgears LV i MV.
  2. Station can be designed in mirror version.

Configuration options

  Type MV bay number
(LV feeders)
MV switchgear TPM up to 4
LV switchgear RN-W up to 12
Transformer power up to 630 kVA
Housing class - 20


main body: 25 000 kg
usable area: 12,32 m2

Station type PST-bS 20/630+800+1000-9. Special version.

Stacja typu PST-bS 20/630+800+1000-9. Wykonanie specjalne.

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Underground transformer station type PST-b 20/630

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