Simon Dean where awarded the contract to design and build the installation of four generator hook up points to facilitate resilience at the Northwest managed Stations.

 

Assuming the responsibility of Principal Designer and Principal Contractor following the discharge of the duties from Network Rail.

The project was completed in two phases due to budget constraints within Network Rail.

• Phase 1: Lime Street Station, Liverpool & Piccadilly Station, Manchester Fairfield Street (2020-2021)
• Phase 2: Piccadilly Tower Block Substation & Piccadilly Package Substation (2021-2022)

Each of the projects where designed through Network Rails NR/CIV/003 Engineering Assurance standard. Simon Dean took the design through F001,F002 & F003 (Form A & Form B in the updated standard).

Our design proposals where considered by the Designated Project Engineer (DPE) and approved for construction following in depth review and inter-disciplinary checks.

Simon Dean design engineers where appointed Contractors Engineering Manager (CEM) and Contractors Responsible Engineer (CRE) for the project taking responsibility and ownership of the project to ensure it is delivered inline with CR-T, British Standards, Statutory Regulations and Network Rail Standards.

All elements of the design project where completed in house, from Computer Aided Design (CAD) models and drawings, Cable Calculations, Containment Load Assessment, Electrical Switch specification to Generator sizing and specification.

Energy consumption across all of the connection points was evaluated based on previous maximum demand consumption date which allowed us to specify the correct power generation equipment and electrical switching.

 

Each of the connection points where critical in nature due to their interface with the existing electrical systems at these major stations. Interlocking arrangements where evaluated and implemented due to the systems now being presented with dual sources of supply.

Power outages where planned our of hours any typically involved coordination with Signallers, Train Operating Companies (TOCs), Station Management, Fire & Security Organisations, Station Tenants and Third Party organisations. Detailed plans and contingency plans where drawn up for each stage of the process to ensure the station could be reinstated with power.

Generator power was made available at each switching sequence as a back up mechanism and also to facilitate the evaluation of the Inspection and Testing Plan (ITPs).

 

One connection point was designed to connect to the existing Low Voltage (LV) equipment at Lime Street Station. We evaluated a number of options through the design procedure and identified an external connection point where a generator could be suitable positioned should it be required to feed the station. The project was designed to facilitate a ***kVA generator connection.

Fairfield Street (Piccadilly Station) was the simplest of the connection points, rated at ***Amp we were able to design a change over switch to avoid the requirements for castell key arrangements and minimise the stages involved in the switching procedure.

 

Connection points at for Package and Tower substation at Piccadilly Station where the most complex in nature due to the loading requirements and the distance of the generator from the connection point.

The generator connection point was located around 130m from the substations, which resulted in us designing and load testing a 900mm heavy duty cable ladder rack system which was mounted to the underside of the undercorft arches. During the installation the system was pull tested to ensure the calculated loading was verified which formed part of the ITP.

The containment system was specified based on the cable requirements to supply the switchgear.

Package Substation required a ****Amp supply and Tower Substation requiring ***Amp supply.

Bespoke generator connection points where designed to facilitate the connection utilising industry standard equipment common to generator hire companies.

The system was installed as per the design, tested, certified and handed over to the client with ‘As Built’ drawings and Operation and Maintenance manuals.

F005 documents where completed as each system was brought into service to maintain compliance with Network Rails standards.

 

 

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