Special version of MRw-b type substation

Technical parameters, electrical diagram, downloads, a description of the type of special versions station type MRw-b production ZPUE S.A.
Wykonania specjalne stacji typu MRw-b
External/internal height of the main structure of the substation:
Standard 2350 mm / 2150 mm
Optional 2650 mm / 2450 mm or 3000 mm / 2800 mm

Placement of equipment

MRw-b(pp) (4,26x2,66) 22/2x630-8
MRw-b (4,26x2,41) 22-4+3
MRw-b(pp) (5,46x3,06) 20/2x1000-4
MRw-b (4,2x2,6) 10/2x630-8
MRw-b(pp) (4,76x3,06) 20/1000-5
MRw-b (4,2x3,0) 10/2x630-8
MRw-b(pp) (6,16x2,66) 20/2x630-5
MRw-b(pp) (4,76x3,06) 20/1000-5
MRw-b(pp) (6,66x3,06) 20/2x1000-5
MRw-b (5,4x2,6) 10/2x630-8
MRw-b(pp) (7,16x3,06) 20/2x1000-5
MRw-b(pp) (5,46x3,06) 20/2x1000-4
MRw-b(pp) (8,16x3,06) 20/2x1000-7
MRw-b(pp) (6,16x2,66) 20/2x630-5
1 Walls, 120 mm thick - standard, 90 mm - optional
Solid walls - REI 120 fire integrity class
2 Ventilation louvres IP 23D - standard, IP 43 - optional
In ventilation louvres mounted in walls with fire integrity class,
fire dampers are installed (e.g. EI 60 or EIS 120) - optional
3 Doors: solid or with ventilation louvres, without fire integrity class
IP 23D - standard, IP 43 - optional
Doors with fire resistance e.g EI 60 or EI 120 - optional
4 Transformer
5 LV switchgear
5a AMI cabinet / Smart Grid / telemetry / auxiliary
5b Capacitor bank
6 MV switchgear
7 Cable duct hatch door

Possibility of constructing enclosures

MRw-bpp (5,46x3,06) 20/2000-3
MRw-bpp (5,46x3,06) 20/2000-3
Dimensions of concrete enclosures
  b - Width [mm]
a - Length [mm]   2410 2510 2660 3060 3560
4260 + + + +  
4760 + + + +  
4760         +
5460 + + + +  
5460         +
6160   + + +  
6660   + + +  
7160   + + +  
8160   + + +  
Wall
thick
[mm]
90/120* 90/120* 90/120* 90/120* 120
Technical parameters**
Transformer (4) Maximum power / dimension 4000 kVA or multiple
Internal arc resistance classification do IAC-AB-25 kA-1s
Enclosure class up to 10 (depending on substation configuration)
Electrical parameters of switchgears MV LV
Rated voltage up to 36 kV up to 1 kV
Rated current up to 4000 A up to 6300 A
Rated short-time withstand current up to 40 kA (3s) up to 105 kA (1s)
Rated peak withstand current up to 100 kA up to 231 kA
Configuration of MV and LV switchgears***

* Table specifies enclosures with wall thickness of 120 mm. In case of enclosures with a wall thickness of 90 mm, subtract 60 mm from the external dimensions of the enclosure.

** Technical parameters are specified as maximum, they will depend on the configuration of the substation and on devices used.

*** Detailed selection of switchgears and their equipment is listed in chapters dedicated to individual devices in the catalogue.

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