Electrical Design

Electrical Design

Mainline Group offers electrical design services across three areas:

 

Studies

  • Load flow
  • Fault current
  • Protection coordination
  • Harmonic filter design
  • Soil resistance investigation
  • Earthing design in C-DEGS

Primary Design

  • 20/38/110 kV substations
  • ESB/IPP sites

Secondary Design

  • Control and protection design
  • Wind and solar farm internal cable design

Sample Projects

Design & Build of 6 Solar Farms Grid Connections, including the ESB and IPP substations, ESB Grid connection and MV Collector and Earthing system for the IPP.

The scope includes MV and LV works on the Solar Farm. Each of the 6 Solar Farms are circa 6MV and all are located in Co. Cork.

Mainline designed MV Collector system including fibre optic network and MV distributions boards.

Mainline designed MV Collector system, MV Earthing system including fibre optic network and MV Switching stations including remote switching capabilities.

Mainline completed the EBoP (Electrical Balance of Plant) & CBoP (Civil) works in 2019, the scope of the project included:

  • EBoP Substation Design and Build / Fit Out (IPP and ESBN stations)
  • Wind Farm and Grid Connection MV/HV Cables (Installation/Jointing/Testing)
  • Wind Farm and Grid Connection Fiber (Installation/Jointing/Testing)
  • Completion of the CBoP Works upon Termination of CBoP Main Contract (due to Examinership of the CBoP Contractor). CBoP Works included significant Substation, Wind Farm, Delivery Route and 38kV Grid Connection works.
  • Managing, liaising, co-ordination commissioning of the Sub-station with the ESB Networks (ESBN).
  • PSCS for all of the above.

Mainline completed the EBoP (Electrical Balance of Plant) works in 2019 (as part of a Joint-Venture), the scope of the 13 Wind Turbine project included:

  • EBoP Substation Design and Build / Fit Out (IPP and ESBN stations)
  • Wind Farm MV/HV Collector Cables (Installation/Jointing/Testing)
  • Grid Connection MV/HV Cables (Installation/Jointing/Testing)
  • Wind Farm Fiber (Installation/Jointing/Testing)
  • Commissioning of the Turbines.

Mainline completed the Grid Connection works in 2018, the scope included:

  • The Design, Supply, Installation, Testing and Commissioning of the 20kV Grid connection including cabling, jointing, trenching, ducting and chambers.
  • All associated ROL & Traffic Management requirements.
  • The Gird Route was 20km in length (dual circuit – each 10km in length) and comprised of 8 double Joint Bays in total, with 4 (set of 6) Straight Through Joints & 4 Sheath (set of 6) Break Joints, terminations at 2 (set of 3) at the Wind Farm Substations and ESBN (Corderry Substation).