________________MiniSub – Prefabricated Transformer Substation


  • The MiniSub is a Compact Prefabricated Transformer Substation of small dimensions, built as standard, tested and supplied from factory as a unit.
  • It is characterized by the incorporation of an associated compact electrical assembly (A) of Medium Voltage.

  • Application sector:

  • Industry.
  • Infrastructure.
  • Mining.
  • Utilities and renewable energies.

General Characteristics:

  • Tests made to the MB as an individual equipment and as a set in the MiniSub.
  • Quick and easy equipment replacement.
  • Prefabricated concrete enclosure.
  • MV and LV cable input/output: Through 12 semi-drilled holes along the sides of the building.
  • Monoblock construction unit plus removable cover.


  • CGMCOSMOS system (up to 24 kV) and CGM.3 system (36 kV).
  • Up to 2 MV/LV distribution transformers with integral filling in liquid up to 36 kV and 1000 kVA(1) unit power.
  • Low-voltage switchgear: Low Voltage Board(s).
  • Direct interconnections via MV and LV cable.
  • Grounding circuit.
  • Lighting and auxiliary services.
  • Protection, control and measurement units (Remote control, remote metering, built-in control, remote management).


  • Ideal for areas with space restrictions.
  • Availability of solutions with sloping roof./li>
  • Equipotential surface.
  • Fire protection.
  • Containment of possible dielectric spills
    Industrias Ectricol S.A.S, develops its products in accordance with regulations:

IEC 62271 - 202 - IEC 62271 - 200 IEC 62271 -150 ENERSIS-ENDESA E-MT-023

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