High voltage (69-220 kV)

Our supply complies with international standards, guaranteeing quality thanks to the control processes, developments and certifications of our manufacturers.

Isolators up to 800 kV

  • Polymeric and porcelain insulators
  • Line post, suspended and bushing insulators

Transmission cables

Bare cables type AAC, ACSR, AAAC, ACAR, AACSR, T-ACSR for electric power transmission and distribution

Circuit Cut-Out Switch

  • Outdoor vacuum, live tank and dead tank circuit breakers
  • Hybrid solutions with different functions

Lightning Arresters

  • Surge arresters up to 800 kV (silicone, polymeric and porcelain)
  • Surge Voltage Suppressors for overhead transmission lines


  • Central, side or double-side opening disconnectors
  • Horizontal, linear, inverted or vertical position
  • With or without earthing blade

Power transformers

Power transformers for substations from 30 up to 400 MVA

Current and potential transformers

Complete range of current and voltage transformers up to 800 kV


Engineering, supply, training, supervision and commissioning of complete Substations up to 800 kV


Manufacture of towers and lattice structures for power lines and substations

We provide you with engineering solutions of proven quality with technological equipment of excellent brands, supported by a highly qualified and professional workforce. ERKA SOLUCIONES