Due to the modular design, it is possible to create a wide range of substation configurations based on standard modules, complex configuration based on MV switchgears (in air or gas insulation) and LV switchgears of our own manufacture.
Modular substations are based on a light, self-supporting metal structure. This design enables placement of the station directly on the ground or on previously prepared base, without the need to prepare additional foundations. This shortens the installation time and cost compared to traditional solutions built of brick.
Substation parameters
Substation parameters | ||
Maximum transformer power | up to 1000 kVA | up to 2000 kVA |
MV/LV rated voltage | up to 24 kV / 0,4 kV | |
Switchgear continuous rated current (MV/LV) | up to 630 A / 1600 A | up to 630 A / 3200 A |
Rated short-time withstand current (MV/LV) | up to 25 kA (3s) / 35 kA (1s) | up to 25 kA (3s) / 85 kA (1s) |
Rated peak withstand current (MV/LV) | up to 63 kA / 77 kA | up to 63 kA / 187 kA |
Internal arc classification | up to AB-20 kA – 1s | |
Ingress protection rating | IP 23D or IP 43 |
Example configurations of modular substations with TPM and Rotoblok SF type MV switchgears
Technical parameters / Configuration options
Station | Transformer (4) | Switchgear - type / max. bay amount | ||
Type | Dimensions | Maximum power | MV (6) | LV (5) |
MRw 20/160 | 2,35 x 1,6 x 1,7 | 160 kVA | NONE | RN-W / 7 |
MRw 20/250 | 2,7 x 1,8 x 2,16 or 2,46 | 250 kVA | TPM / 4 or 2 + M | RN-W / 8 |
MRw 20/250 | 2,9 x 2,6 x 2,45 or 2,75 | 250 kVA | Rotoblok SF / 4 | RN-W / 14 |
MRw 20/1000 | 2,8 x 2,2 x 2,16 or 2,46 | 1000 kVA | TPM / 5 or 3 + M | RN-W / 12 |
MRw 20/1000 | 2,8 x 2,6 x 2,16 or 2,46 | 1000 kVA | TPM / 6 or 4 + M or 5 + S | RN-W / 16 |
MRw 20/1000 | 3,1 x 2,2 x 2,45 or 2,75 | 1000 kVA | Rotoblok SF / 3 | RN-W / 16 |
MRw 20/1000 | 3,1 x 2,6 x 2,45 or 2,75 | 1000 kVA | Rotoblok SF / 4 | RN-W / 16 |
MRw 20/1600 | 3,4 x 2,6 x 2,45 or 2,75 | 1600 kVA | TPM / 6 or 4 + M lub 5 + S | RN-W / 16 |
MRw 20/1600 | 3,7 x 2,6 x 2,45 or 2,75 | 1600 kVA | Rotoblok SF / 4 | RN-W / 16 |
MRw 20/2000 | 3,7 x 2,2 x 2,45 or 2,75 | 2000 kVA | TPM / 6 or 4 + M or 5 + S | ZR-W / 16 |
MRw 20/2000 | 4,0 x 2,6 x 2,45 or 2,75 | 2000 kVA | Rotoblok SF / 4 | ZR-W / 16 |
External view
Version with concrete foundations
Versions with integrated metal foundations
Concrete foundation
Dimensions in accordance with the substation size
Metal foundation
1 - Substation placement part — concrete or metal foundation
Placement of devices
MRw (2,35x1,6) 20/160 - final substation (simplified)
2 | Ventilation louvres - optional |
3 | Doors: solid or with ventilation louvres, IP 23D - standard, IP 43 or IP 55 - optional |
4 | Transformer |
5 | LV switchgear |
5a | AMI cabinet / telemetry / auxiliary |
6 | MV switchgear |
6a | MV compartment without the MV switchgear |
MRw (2,7x1,8) 20/250-4
MRw (2,9x2,6) 20/250-4
Example configurations of substations with RXD type air insulated switchgears
Placement of devices
MRw configuration no.1 max. 1000 kVA
MRw configuration no.2 max. 1000 kVA
MRw configuration no.3 max. 1000 kVA
2 | Ventilation louvres - optional |
3 | Doors: solid or with ventilation louvres IP 23D - standard, IP 43 or IP 55 - optional |
4 | Transformer |
5 | LV switchgear |
5a | AMI cabinet / telemetry / auxiliary |
6 | MV switchgear |