Utilities

STS were appointed as the Design and Build contractor to carry out the following scope of services as part of Biogen’s Generator Project:

• 2 no. 2MW containerized Diesel Generators complete with day tanks
• Generators were stepped up from 400V to 16kV using separate 2.5MVA transformers
• The HV side of the transformers were connected to a new 16kV Switchboard with capacity for future generator connections
• The new switchboard was connected to neutral earthing resisters fed through zig zag transformers for earthing the generators under various switching operations
• The new 16kV board was also connected to two existing network supplies via existing 2no. 16kV existing switchboards
• The generators were integrated to the plant BMS to provide fuel to the day tanks based on the fuel levels in the day tanks
• Generator power outputs were also fed to the external network for monitoring
• All Generator / Traffos / Switchgear / PMS / BMS Fuel systems commissioned

STS Group were appointed as electrical contractor the extension of this Dublin based 110kV Substation. STS Groups scope of service included the following:

• Complete fit out of client control room and all LV,ELV systems within same
• Supply and install 1 number 110kv/20 KV 20/35mva transformer (Co-ordinate all FAT, delivery and specialist off-loading of transformers)
• Supply and install all secondary steelwork and CT’s/VT’s associated with MV side of transformer
• Design supply and install all protection panels associated with control cabling
• Install free issue ESN metering cabling and erect ESB metering equipment
• Co-ordinate commissioning with ESB Revenue metering division
• Commission all systems and hand over to ESBN for final commissioning
• Complete interface testing with ESBN commissioners

Turnkey installation of an 18.2 MW Gas Generation Plant for temporary MV power to a confidential Clients Data Centre. STS Groups scope of service included the following:

• Design
• Civil, Works
• MV Installation
• MEP Installations
• Commissioning and handover of Plant
• Operation of Plant
• Decommission plant once permanent MV power was available to site

STS were contracted for the works on Project Cloghran for phases 2 & 3. The scope of this project included:

• Design and submittal process with Eirgrid/ESB on all equipment with ESB
• 3 No. 35MVA transformers, CTs/VTs and NERs including offloading, installation, assembly, commissioning and energisation
• Installation of all AIS yard equipment including 11kN bus bars, sectionalising disconnector/circuit breakers, bus bar disconnectors, surge arrestors, marshalling kiosks
• Installation of all yard/equipment earthing system
• Installations, termination & testing of 1600mm Al Feeder cable from AIS station to transformers
• Installation of all associated power and control cabling
• Installation and termination of power and control cabling on behalf of ESB within AIS yard
• Design and fit out of client control building including all protection panels, UPS, MDB, House and essential services distribution boards

STS are currently working for a confidential data center client in the delivery of a design and build contract for a 220kV GIS Substation in Dublin . The scope of this project included:

• Prepare and submit planning documentation
• Design of GIS substation, 220kv cable routes, transformer bays and client control building.
• Installation of all 220kV & 24Kv cabling and termination
• Installation of 220 kV GIS switchgear and high voltage testing
• Switching plans, progress reports, commissioning plans and oversight of electrical safety procedures
• Perform HV AC, VLF, tan delta and partial discharge testing on all 220 kV and 24 kV cables
• Commissioning  and hand over to Eirgrid the 220kV GIS Substation
• Commission and handover to client the 24kv Client Control Building

STS were contracted for the works on the Airton GIS Building in Tallaght, Dublin. The scope of this project included:

• Detailed interfacing with ESB and ESBI on all items relating to the GIS- fortnightly meetings with ESB
• Electrical services fit out of GIS substation including LV supply from adjacent client control building
• Installation of free issue ESB equipment including distribution boards
• Three bay transformer area- presently two number 63MVA transformer installed and assembly/build out
• Engagement of specialist heavy lift contractors to install 65-ton transformers, full reviews of all lifting plans and installation methodology
• Fit out of client control building and all associated equipment.
• Installation and cabling of ESB interface kiosks
• Installation, termination and testing of MV off loader cables from 63MVA transformer to 20KV switchgear located  MV switch room
• Relocate 63MVA Traffo to DUB 56