WST 20/630

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


Transformer stations variants

The webside presents only exemplary solutions of the container stations.
Thanks to many years of experience and a team of qualified engineers, we are able to prepare solutions corresponding to the needs of the most demanding clients. The best example is in the deliveries for contractors such as: PGE, TAURON, ENERGA, ENEA, RWE, PKP Energetyka, KGHM, KWB Bełchatów, ČEZ, EON, RWE, Alstom and many more.

Station type WST 20/630 "Advertising pole"

General view of the station type WST 20/630
General view of the station type WST 20/630
Structure of transformer’s compartment station type WST 20/630
Structure of transformer’s compartment station type WST 20/630
Structure of the switchgear’s MV i LV station type WST 20/630
Structure of the switchgear’s MV i LV station type WST 20/630

Diagram of the standard station type WST 20/630

Schemat standardowej stacji typu WST 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. When using a four-bay MV switchgear in an LV switchgear, a maximum of six disconnect-ors of the 1-3 group can be installed.
  3. Station installation according to individual design and as-built documentation.

Configuration options

  Type MV bay number
(LV feeders)
MV switchgear TPM up to 4
LV switchgear RN-W up to 10*
Transformer power up to 630 kVA
Housing class - 20


main body: 3 600 kg
switchgear compartment: 5 200 kg
transformer compartment: 5 100 kg
concrete roof: 1 500 kg
metal roof: 350 kg
usable area: 4,46 m2

Technical data

Stations parameters
   MV LV
Ur - Rated voltage up to 36 kV up to 1000 V
Ir - Rated current up to 4000 A up to 6300 A
IK - Rated short-time withstand current up to 40 kA (3s) up to 105 kA (1s)
IP - Rated peak withstand current up to 100 kA up to 231 kA
fr - Power frequency withstand 50/60 Hz
Maximum transformer power up to 4000 kVA
Protection degree IP23D up to IP43 (IP54)

Stations have been examined with regard to existing standards in accredited European laborato-ries.

Compliance with the standards

  • PN-EN 62271-202 - High-voltage switchgear and controlgear - Part 202: High-voltage/ low-voltage prefabricated substation;
    + related norms

Localization of the station due to fire safety requirements

The mounting area of the station should be chosen in accordance with the regulation of the Minister of Infrastructure of 12 April 2002, with regard to the technical requirements of buildings localization (Journal of Laws of 15 June 2002, No 75, item 690, with later changes) or local regulations.
Individual cases of localization/placing of the station should be considered on an individual basis and consulted with ZPUE S.A. or with other authorized services (opinion given by fire protection officer).

Small size transformer station in concrete housing type WST 20/630

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