110 KV Station refurbishment and protection upgrade.
110 KV Cubicle installation and upgrade including all civil works.
110 KV Islanding protection.
110 KV Bulk Supply Metering.
110/38/20 KV Duct & Cable installation and jointing.
20 KV Sub-station installation, maintenance and commissioning, & civil works.
20 KV Sub-station Design, Build and Commission.
38 KV Sub-station Design, Build and Commission.
38 KV Traffo Installation and Differential and Neutral Earth Fault protection upgrade.
38 KV Sub-station Refurbishment including all civil works.
38 KV Protection upgrade including build/supply protection panels.
38 KV Asset replacement.
Auto-Recloser installation, testing and commissioning.
Date of Completion: July 2017 to April 2019
Ballycumber Wind Farm (WF) is located near Tinahealy, Co. Wicklow. The WF includes six Siemens SWT 101 3.2MW Wind Energy Converters (WEC’S) with a maximum installed capacity of 19.2MW and a maximum export capacity of 18MW. Each WEC is capable of a maximum output of 3.2MW via a turbine transformer. The WTGs are connected at 38kV to the ESBN distribution network at the point of connection via the grid transformer located at the WF substation (Ballycumber). Ballycumber WF was contestably built Substation.
SCOPE OF SUPPLY OF CONTESTABLE WORKS
Mainline completed the substation contestable works in accordance with the ESBN functional specifications, designs and material specifications and drawings issued by the Utility Company. The Contestable Works consisted of the design, supply, installation, testing and pre-commissioning of the following equipment:
38kV external substation works, including:
38kV internal substation works, including:
SCOPE OF SUPPLY OF WIND FARM ELECTRICAL WORKS
Mainline Power were responsible for all electrical works between the WF grid connection point and the WTG 20kV switchgear including the electrical works associated with the wind farm collector cabling system. Mainline coordinated with ESBN, and the Employer as necessary, to ensure the works were designed and installed to the appropriate standards.
The WTG transformers were installed by the WTG Supplier under a separate contract. The termination points were defined as the WTG 20kV switchgear terminals. Mainline provided the power cable termination kits as per the WTG supplier specification and terminated and tested the same.
The Wind Farm Electrical Works consisted of the design, supply, installation, testing and commissioning of the following:
WIND FARM ELECTRICAL WORKS
Mainline were responsible for the following in relation to the wind farm site:
38KV GRID CONNECTION ELECTRICAL WORKS
Mainline were responsible for the following in relation to the 38kV Grid Connection:
CBOP Works (Substation / Wind Farm /Grid Connection and Delivery route)
The Civil Balance of Plant (CBoP) Contract consisted of the design, supply and construction, both temporary and permanent of:
Conversion to 20KV, including Trafo replacement, Station Protection Upgrade, replace AAP, relocation of Interface Trafo, installation of 3 No. RMU’s, and installation of Unit Sub. Undergrounding of all MV Networks in the Station, Refurbishment of all MV cubicles and 38KV Trafo cubicle. All civil work associated with the refurbishment including bunded Trafo base.
Removal of Trafo from Trien 38KV Substation and installation in Causeway. Work included HV / MV Trafo cubicles, protection upgrade, AAP replacement, and all associated civil works.