Kilpaddoge 220/110kV substation

EirGrid planned the new Kilpaddoge substation in parallel with three other transmission substations in the south west region.

Inside the Kilpaddoge 220/110kV substation by Eirgrid, featuring large transformers and circuit breakers.

Project information

Client: Eirgrid
Location: Kerry, Ireland
Project name: Kilpaddoge 220/110kV substation
Project tags: Commissioning

Project Description: 

EirGrid planned the new Kilpaddoge substation in parallel with three other transmission substations in the south west region. The driver for this substation as detailed in EirGrid’s Grid Strategy is security of supply and replace some of the functionality of the existing Tarbert 220 kV substation.

Killpaddoge is a Gas Insulation Substation using ABB ELK switchgear for both the 220kV and 110kV substation. The GIS 220kV station is a 20 bay eight-way dual busbar including three sectionalisers and two bus couplers. It is the most recently built 220kV GIS substation in Ireland and also has the largest number of bays built at one time

 

Project Scope: 

Powercomm’s project scope involved commissioning and submitting the declaration of fitness (DOF) for the switchgear and protection relays. 

 

Equipment testing, and commissioning included:

  • Substation Earthgrid Impedance Testing.
  • Substation Earthgrid Step and Touch Voltage Testing.
  • 250MVA 220/110kV Transformer Tan-Delta, Ratio, DC Resistance & SCI
  • 220/110kV VT & CT Ratio, Insulation, Class & Burden.
  • SF6 Monitoring and lockout functions.
  • Control, Indication & Alarms Verification with National and Local Control.
  • ABB 220/110kV GIS Switchgear Control & Interlocking.
  • Siemens 7SA612 220/110kV Line Distance Protection.
  • Toshiba GRL100-702D 220/110kV Line Distance/Differential Protection.
  • Toshiba GRB100 220/110kV Busbar Differential and CBF Protection.
  • Siemens 7SJ612 220/110kV Sectionaliser & Coupler Overcurrent Protection.
  • 220/110kV Busbar Stability Testing
  • Siemens 7SA612 220/110kV Transformer Impedance Protection.
  • End to End Reclosing, Impedance & Differential Testing with Remote Stations.
  • ABB RET670 220/110kV Transformer Differential & REF Protection.
  • ABB Synchrotach5 Control Synchronising Scheme.
  • Toshiba GRZ100 110kV Line Distance Protection.
  • Toshiba GRL100-206B 110kV Line Differential Protection.
  • 250MVA 220/110kV Transformer Stability Testing.

 

Protection relay testing and commissioning of the following:

 

Project Summary: 

 

  • Completed ahead of schedule
  • 100% project successful completion
  • Zero onsite incidents
Back to all case studies