Portfolio of our completed engineering design works

Provided technical support for the review and comment on new and main plant secondary design drawings to ensure compliance with LUL and Powerlink standards and also the provision of interface engineering to facilitate the need to increase the number of traction substations on the Metropolitan line due to change in new rolling stock has been introduced by LUL. 

Interface engineering and cable routing designs associated with the replacement of the 110V and 48V DC Battery systems, which required to be staged to enable one DC system to remain in service until the opposite system had been installed and commissioned.

National Grid identified the need to relocate a Quad Booster from Ocker Hill substation to Willesden substation. The work involved reviewing the existing circuit and interface drawings associated with the quad boosters at both Ocker Hill and Willesden for protection compatibility and to provide drawings highlighting to show the required site modifications. All were provided on target to meet short turnaround requirements. 

Update of the existing, site drawings associated with the decommissioning of SGT1 and SGT2. Providing red/green drawings associated with the disposal of National Grid protection and control equipment/assets located within the 400kV and 66kV substation relay rooms. 

Full circuit design and interface engineering associated with Barking Grid/Essex Road cable diversion and the re-connection of the T4B circuit. The provision of primary plant design engineers, and panel manufacture was also included in our scope of works. Existing drawings updated in line with current NG policies for the change of feeder protection and replacement of 25kV disconnector. Bramford 400kV GIS - 10 Bays of 400kV GIS. Secondary systems design works for Bramford GIS 400kV. Also included were circuit diagrams for the 400kV GIS local control cubicles, and interface engineering for the overall substation.

Finnieston 132/33kV Substation - 132kV Grid & Primary Substation works.

Complete circuit design associated with the new 132/33kV Grid and Primary substation works, including modifications to the existing 132kV intertripping at Partick and Windyhill 132/33kV substations. Also included was the management of the panel build. 

At these sites interface engineering of the new 33kV switchboards with existing protection schemes, which also included modification of circuit and interface designs to match intertripping and protection systems to the new equipment installed on the replacement 33kV switchboards. 

Full circuit design associated with the supply of AVC panels to Scottish Power Standard designs. Longannet 275kV substation - 275kV FeederProtection Refurbishment. Full circuit design, modification to existing circuit designs and interface engineering associated with the RETS Denny North 400/275/132kV substation works. Work included for the replacement of feeder protections on the existing Bonnybridge, Windyhill/Lambhill, Clydesmill and Easterhouse circuits and the reconfiguration of circuits due to the turning of circuits to Denny North substation. 

Dewar Place Substation is major electricity bulk supply point for the City of Edinburgh. Scottish Power requirements was the reconstruction of Dewar Place which was constrained by the requirement to maintain secure supplies to the 33kV network. For this project full circuit design and interface engineering was provided for the multiple staged works to install new GIS equipment comprising the 275kV switchgear, 33kV switchboards, 275/33kV Supergrid Transformers, Primary 33/11kV transformers, Shunt Reactorsand associated Reactor switchgear together with dedicated water cooling systems, this was the first time of using the Toshiba, GIS transformers and reactors in the UK. Also included were the associated 33kV remote end protection alterations.

Review and comment on supplied circuit design, including interface engineering associated with the staged replacement of A1MTA/B and A2MTA/B transformers and protection to keep operational risks to the Exxon Mobil oil refinery electricity supply to a minimum.

Full circuit design and interface engineering associated with the new primary substation at Rockingham DC to provide electrical energy at 11kV to new local developments. Included in the design were the protection and control schemes for the new 33/11kV transformers and 11kV switchboards. Also included was the management of the panel build.

Modification of circuit design and interface engineering associated to facilitate the replacement of three 11kVswitchboards and reconfiguration of the substation 11kV power cable connections. The designs had to be arranged to allow the changeover of the 11kV Incomers, Feeders and Bus Sections in a controlled staged programme to avoid disruptions to WPD Network. This included reconfiguration of LVAC and DC supplies to ensure decommissioned equipment at a later date can be removed without disruption to live equipment. Also undertaken in these designs was the replacement of obsolete transformer protection and AVC equipment with modern equivalents.

Modification of circuit design and interface engineering associated with the emergency replacement of National Grid Supergrid Transformers and to provide drawings highlighting to show the required site modifications. All were provided on target to meet short turnaround requirements. At Tynemouth additional works was undertaken for the addition of a new 13kV Reactor, change in ownership of the 11kV switchboard and overall rationalisation of National Grid drawings for this site.

Full circuit design and interface engineering associated with the build of new substations necessary to facilitate the connections of new wind farms. Also included in the design was the provision of Loss of Mains scheme. 

Complete circuit design and interface engineering associated with the replacement of transformers and 11kV switchboard due to increase in circuit demands. This included new transformer protection and control schemes. 

Full circuit design and interface engineering associated with the installation of a 132kV Metered circuit breaker tee-off and associated protection at the existing North Bank substation and associated protection changes at Saltholme substation. Also included in the design was the provision of Loss of Mains scheme.

Scottish Power required the integration works to provide a fully functional design for the 11kV and 33kV switchgear installations, including protection, control equipment and ancillary equipment at their Bulk Supply Points, primary substations and switching stations. For this work full circuit design was provided to the 33kV switchgear manufacturer for the development of standard solutions, this also included full mappings for IEC 61850 communications required from the various suppliers relays to the SCADA RTU, also of which were from different manufacturers, the projects also now encompassed the 11kV switchboards into IEC 61850 communication network.

Full circuit design and SCADA facility schedules associated with the new 132kV GIS double busbar substation to be established at Sloy to replace the existing 132kV AIS substation. This work also included the modifications of protection and intertripping equipment at the remote end substations. 

At these sites full circuit design and interface engineering associated with the transformer refurbishment, transformer protection, AVC and 11kV switchboards. Customer support at panel manufacturer FAT. 

Modification of the circuit design and interface engineering associated with the replacement of GT1, GT2 and 132kV disconnectors.

Full circuit design associated with the new 132/11/11kV substation to be established at Osborne Street to replace the existing 33/11kV substation. Circuits included 132kV Banked Feeder/132/11/11kV Transformers, 132kV Feeder/Feeder circuits, Bus Coupler, Main and Reserve Bus Sections and four 132kV Feeders.

Review and comment on supplied circuit design, including interface engineering associated with new 33/11kVtransformers and 11kV switchboard. Shell - Primary Substation. Full circuit design for 33/11kV Transformers T1 and T2 associated with the build of new 33/11kV substation at the London Gateway Port. Also included was the management of the panel build.