Modern societies need safe, reliable, fast, economic and environmentally friendly means of transportation and increasingly the public look to ac and dc railways for solutions. One of the key issues for meeting these objectives is the provision of a high quality supply of electricity to the railway network for traction, signalling and station power.
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LPA has much experience in planning and designing the wide spectrum of electrical systems found on any railway today. This includes design and project management of ac/dc traction substation packages, signalling power supplies, associated cabling, catenary systems and third/fourth rail systems for heavy and light rail applications.
Our engineers have carried out this type of work for many railway systems including Network Rail, LUL, Midland Metro, MTRC Hong Kong, Staten Island, San Francisco, South African Railways and Zimbabwe National Railways.
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LPA staff are experienced in producing and applying railway standards and the associated processes including possession management. LPA utilises this experience to ensure the successful delivery of projects. LPA can provide engineering and project management services in the following principal areas: |
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Planning, designing and project management of ac and dc railway supplies
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Computer simulation and timetable modelling |
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AC and DC Traction substation design/detailed design/integration and project management |
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Depot power supplies |
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Equipment rating and specification |
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Overhead Line Equipment design and rating calculations |
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Conventional and auto-transformer feeder system design |
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Quality of supply, unbalance, voltage fluctuations and harmonic distortion |
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Reactive compensation/balancers and harmonic filtration |
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EMC and frequency domain simulation |
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Measurements and testing |
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Contractual service agreements and performance monitoring |
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Planning and design criteria/standards usage, reviews and writing |
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QRA and reliability of power systems |
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Probabilistic simulation of train loading |
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Ac and dc system protection design and auditing |
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Distribution Network Operator/Grid interface
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Cabling System design including containment |
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SCADA and Telecommunications interfaces |
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Signalling power supplies |
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Civil Design and management of civil interfaces |
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Possession and outage plans preparation |
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TS qualified personnel for carrying out site activities |
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