Power Consultancy PB 1

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1 Power Consultancy 1

2 Helping you to comply with the latest legislation Advice throughout the project Through our comprehensive portfolio of Power Consultancy services, we can help to ensure you are in complete compliance with the latest regulations. The Electricity at Work Regulations (1989) state: Except where otherwise expressly provided in these Regulations, it shall be the duty of every employer to comply with the provisions of these Regulations in so far as they relate to manners which are within his control. The table opposite, whilst not exhaustive, illustrates some examples from these regulations and our related services to help you comply. Why you should choose Schneider Electric as your design partner of choice: Our productive partnership approach gives you peace of mind and helps maximise your investment We have a specialist team of consultant engineers, experienced in the development of power engineering, energy efficiency and automation solutions Our cutting edge solutions improve system reliability and avoid the financial losses of unscheduled downtime Solutions are individually tailored to be efficient from the outset, avoiding unnecessary delays and unplanned costs Reduced risk when selecting the correct equipment and applications and designed with the best technology to meet your application Our team is based around the UK - we can deploy to your site at short notice 2

3 Helping you to comply with the latest legislation What does it mean? Regulation 4 Systems, work activities and protective equipment All systems shall at all times be of such construction as to prevent, so far as is reasonably practicable, danger. Equipment construction is fit for purpose, no missing covers/screens etc. Ability to withstand worst case fault levels, contain arcs, design considerations regarding protective devices and environmental conditions. Power consultancy offer Protection study Fault level study Site audit to check condition of equipment As may be necessary to prevent danger, all systems shall be maintained so as to prevent, so far as is reasonably practicable, such danger. Is the equipment in good condition? Is there a suitable maintenance schedule and specification in place and do any maintenance records exist? Site audit to check condition of equipment Audit of maintenance procedure and plan Every work activity, including operation, use and maintenance of a system and work near a system, shall be carried out in such a manner as not to give rise, so far as is reasonably practicable, danger. Are there suitable procedures and associated equipment to allow sufficient and suitable isolation of circuits? Are suitable trained and appointed authorised persons on site? Audit of electricity safety rules Audit of Authorised Persons Any equipment provided under these regulations for the purpose of protecting persons at work on or near electrical equipment shall be suitable for the use for which it is provided, be maintained in a condition suitable for that use, and be properly used. Are the correct procedures and PPE used when working near electrical equipment? Audit of working practices and safe system of work Regulation 5 Strength and capability of equipment No electrical equipment shall be put into use where its strength and capability may be exceeded in such a way as may give rise to danger. Regulation 6 Adverse or hazardous environments Electrical equipment which may reasonably foresee ably be exposed to:- Mechanical damage The effects of weather, natural hazards, temperature or pressure The effects of wet, dirty, dusty or corrosive conditions Any flammable or explosive substance including dusts, vapours or gases Shall be of such construction or as necessary protected as to prevent, so far as is reasonably practicable, danger arising from such exposure. Is the equipment fit for purpose - can it still provide safe interruption of fault currents? If the network has changed the fault level may have increased? Does the network have the right protection in the correct place? Site audit to check condition of equipment Fault level study Site audit to check condition of equipment Fault/protection study Regulation 11 Means for protecting from excess of current Efficient means, suitably located, shall be provided for protecting from excess of current every part of a system as may be necessary to prevent danger. Regulation 12 Means for cutting off the supply and for isolation Does the network have the right protection in the correct place? Can you isolate all equipment safely? Site audit to check condition of equipment Fault/protection study Audit of working practices and safe system of work Site audit of equipment and review of network Regulation 13 Precautions for work on equipment made dead Regulation 14 Work on or near live conductors Regulation 16 Persons to be compettent to prevent danger and injury Can you prove the equipment is dead and ensure it cannot be made live again? Methods of safe working Are there competent people working on the equipment? Audit of working practices and safe system of work Audit of Electrical Safety Rules Audit of authorised persons Audit of authorised persons 3

4 ? Electrical network healthcheck Many customers in the UK are unaware of the condition of the electrical systems in their facilities. Power demand is increasing and becoming more important and this is putting more strain on these systems to perform without failure. An electrical health check from Schneider Electric helps you understand the condition of the network and identifies any potential problems now and in the future. It can identify: Electrical equipment obsolescence Potential failures of equipment Incorrect device application Wrong protection settings applied on equipment Confirmation of the single line diagram on site Power supply problems (voltages dips, harmonics etc) by optional monitoring survey Why do you need it? This service helps you improve the reliability of the electrical system and comply with current legislation. The report produced can help you to develop business plans for future upgrades or changes to the electrical systems on site, providing a true asset register of the equipment and servicing requirements and giving accurate up to date drawings for the system. The review is undertaken by experienced Power System Consultants who are familiar with manufacturers equipment from 33kV to final distribution equipment. 4

5 Electrical network design The correct design and selection of equipment and protective devices is critical to the reliability and longevity of your electrical network. Our design team of qualified engineers understands the requirements of the electrical loads in your facility. They will ensure the correct equipment is selected according to customer and system requirements. Our experienced engineers have been designing such systems for many years and are fully conversant with all the relevant standards including 17th Edition Wiring Regulations, Earthing Standards and IEC 909 fault level calculations. Our offer is suitable for new and existing installations which require either a brand new design or an upgrade/reconfiguration to meet new demands. Electrical network design can include the following elements: A detailed review of your existing design and installation An optional load flow analysis to determine the exact status of the power system Proposition of a number of possible designs Development of design specifications and list of selected equipment Cabling and earthing system design Network automation design Protection system design A written report detailing the following: Overview of the network design Design calculations to support the design Review of options available Selection and specification of equipment 5

6 Protection studies Incorrect protection settings can result in spurious tripping during normal load conditions or failure to trip during a fault. Inadequate discrimination can result in unnecessary disconnection of supply to loads. Optimising protection settings We identify optimum protection settings to ensure that your personnel and electrical network are properly protected and supply availability is maximised. A protection co-ordination study: Can either be based on electrical network data provided by the client or involve a site visit to collect data from existing devices Involves calculation of optimum protection device settings Is carried out using a proprietary power systems analysis software package (SKM Powertools for Windows) On completion of the protection co-ordination study you will receive a report containing: A single line drawing showing the electrical network model A summary of the relevant data on which the study is based Commentary about how settings were determined and any issues arising Protection device setting tables Protection device time-current characteristics Recommended improvement actions 6

7 Power consultancy auditing packages Maintenance, monitoring, modernisation and management Compliant with the latest regulations We can enhance the dependability of your electrical installation and ensure lasting performance for your installation, as well as improving performance by changing system architecture and organisation. Our team of experienced Power Consultants will deliver our auditing packages, which offer a comprehensive report, providing a detailed view of your electrical infrastructure. Power consultancy auditing packages Installation Audit Visual audit of electrical installation providing asset information as required (online or tabular, see options) Modernisation Plan 1 Report of audit findings: technical findings, indicative costs for correction, equipment obsolescence and cost of retrofit, qualitative assessment of the network and recommendations for improvements Modernisation Plan 2 Includes everything in Modernisation 1 plus: Reliability assessment pre and post recommendations Maintenance Plan 1 Provide a time based maintenance strategy Maintenance Plan 2 Provide a reliability and process critical maintenance strategy based upon: an understanding of the end user s process, linking the end user s process to the electrical network and performing reliability and criticality assessments Management Plan The management plan focuses on aspects other than maintenance which should be considered in order to ensure the reliable operation of the electrical network and its equipment Monitoring Plan This plan is a progressive programme recommending a strategy to implement a monitoring system taking into account the specific requirements of your process and management targets Levels n n n n - n n n n - - n n n n Optional services (available at extra cost) Create new or modify existing single line drawings or site documentation Online asset database Tabled asset lists PCMD ( a PC-based mimic diagram solution) with asset information Fault level and protection study Arc flash study including full equipment labelling service l l l l t t t t t t t t l l l l l l l l l l l l n Standard l Optional at extra cost t One type of asset list is included in the installation audit 7

8 Additional services: Network reliability studies Assessment of electrical and environmental stress and calculation of power availability to critical loads Identify priorities for maintenance, equipment upgrade or network changes Compliant with the latest regulations Electrical contingency planning Proactively reduce the risk to your installation and minimise lost revenue through system downtime by running a detailed recovery plan Harmonics surveys Identify the existing supply impedance and individual harmonics to reduce both electrical insulation degradation and nuisance tripping of overload Fault level studies / load flow studies Understand risks and stresses which may occur on your electrical network and take steps to minimise risk to life from arc flashes under fault conditions Power transformer assessment On-site audit of your power transformers, with measurements taken both on- and off-line Arc flash studies Provide advice on current guidelines and recommendations of mitigating risks of an arc flash 8

9 Work with Schneider Electric and you will have access to a wealth of skills and experience. Here is a selection of the many diverse projects where our Power Consultancy team has provided its skills and expertise: Assessing Defence assets with PriDE Schneider Electric was appointed by PriDE, a joint venture between Interserve Defence Limited and Southern Electric Contracting, to assess key electrical assets of Defence Estate properties across the South East of England. The primary objective of PriDE was to evaluate the quantity and condition of the assets in its region, so that a fair assessment could be made of the costs involved over the contract period. Solution: For assistance with this enormous task, PriDE sought support from organisations with proven experience and specialist skills. In the case of the major electrical equipment, Schneider Electric was selected on the basis of its previous successful involvement with all three of the major stakeholders Defence Estates, Interserve Defence and Southern Electric Contracting. Schneider Electric s major involvement is with high voltage switchgear, transformers and primary low-voltage equipment. To ensure expeditious handling of the work, Schneider Electric embedded an engineer with Interserve Defence for 15 months. Marcus Charter, Power Consultant at Schneider Electric, said, Over this period, Schneider Electric provided positive impartial advice on switchgear management for each site audited, as well as providing practical support not only for switchgear supplied by Schneider Electric, but for all switchgear on the site, irrespective of manufacturer. Working with the condition assessment team from Interserve Defence, Schneider Electric also used its expertise and experience to enhance the methods of reporting to Defence Estates. These enhancements have now been adopted for other specialist assessment services. Power Consultancy Audit for major International Airport This major UK international Airport flies to over 220 destinations around the world with over 262,000 aircraft movements every year. The airport owners knew that their electrical network needed to be reviewed and enhanced and Schneider Electric was chosen to supply a major audit of the electrical network. A big part of these asset stewardship activities is to recognise the quantity and condition of all low voltage switchgear under the airport s control. As well as asset recognition and conditional reporting, recommendations were made in an effort to maximise the investment made in the switchgear installed base by the airport, which included a consultative approach to maintenance and modernisation activities. Schneider s Power Consultants also advised on new upgrades and maintenance requirements, providing AutoCAD-produced single line diagrams for each piece of switchgear audited. These drawings were cross-referenced to ensure a network picture was established, which totalled approximately 380 drawings. Minimising unexpected events such as power outages at a large commercial airport is of the utmost importance and having information to suitably target required modernisation, maintenance or replacement activities promotes security of supply. The results of the survey work helped the engineering team to channel the available budget in a measured way to the appropriately identified equipment. The work performed by Schneider Electric has provided the PriDE group members with accurate, detailed and dependable information about the assets they control. This is allowing them to work with Defence Estates on a truly equitable basis, as the costs and labour involved in the contract can now be properly quantified. Steve Tucker, Head of Estate Strategy at PriDE 9

10 Providing a holistic network review for a major UK Hospital A major NHS Trust in the North of the UK has been providing healthcare into the local community for the past 250 years. The trust required a comprehensive review of its plant reliability and operation. One of the main obstacles which needed to be overcome was that, due to the age of the building and the original installation, equipment often proved difficult to locate and cables had to be traced through ducts, basements and walls. Our work in other markets includes: Provision of design advice and specification for several wind farm projects which included, 33kV switchgear and protection system, automatic reclosing schemes and interfacing to SCADA. Systems compatibility review and protection discrimination studies for numerous large data centres. Additionally, leading on a new-build data centre project that included Network reliability studies, HV and LV switchgear, transformers and interfacing to 90 standby generators. A comprehensive electrical review was undertaken which enabled a detailed modelling of the site network using Schneider Electric s PCMD PC-based software tool. Using a scientific and systematic approach, experts were available on site to adapt the performance of the electrical installation to meet specific operational needs. The result is a set of recommendations and a communication tool was produced to improve reliability, efficiency, maintenance and management of the electrical installation and associated processes. 10

11 Notes 11

12 UK contact details Fax Ireland contact details Fax As a global specialist in energy management with operations in more than 100 countries, Schneider Electric offers integrated solutions across multiple market segments, including leadership positions in Utilities & Infrastructures, Industries & Machine Manufacturers, Non-residential Buildings, Data Centres & Networks and in Residential. Focused on making energy safe, reliable, efficient, productive and green, the Group s 130,000 plus employees achieved sales of 22.4 billion euros in 2011, through an active commitment to help individuals and organisations make the most of their energy. We are changing our brand names and becoming one Schneider Electric. You ll get the same great quality products, but from one name you can remember and trust. This provides you and your customers with the reassurance associated with Schneider Electric. Some of our market leading brands have already become Schneider Electric including Merlin Gerin, Telemecanique, Square D, GET, Mita, Sarel, Himel, Thorsman, Tower and TAC. Working as one Schneider Electric makes it clearer that our ranges are highly compatible for integrated solutions. Schneider Electric Ltd United Kingdom Stafford Park 5, Telford Shropshire TF3 3BL Tel: Fax: Ireland Head office, Block a Maynooth Business Campus Maynooth, Co. Kildare Tel: (01) Fax: (01) Schneider Electric Limited is a company registered in England and Wales. Registered number: Registered office: Stafford Park 5, Telford, Shropshire TF3 3BL Schneider Electric. All Rights Reserved. Schneider Electric, Active Energy Management, Compact, EcoStruxure, ION Enterprise, irio, Make the most of your energy, Masterpact, Micrologic, Power Plant To Plug, Modbus, and PowerLogic are owned by Schneider Electric Industries SAS, or its affiliated companies in the United States and other countries As standards, specifications and designs change from time to time, please ask for confirmation of the information given in this publication. SE7766 JUL 2012 member of 12