Electricity Utilities

Anderson, Antony

Consultant Electrical Engineer: failure investigations: expert witness

Details

Services Provided:

An independent consultant electrical engineer and expert witness with extensive experience of electrically-related investigative work that has successfully supported litigation and dispute resolution. He investigates and reports on unusual electrical problems and on the causes of electrical machine and control system failures. He offers ideas and solutions that improve design/manufacturing processes.

Armstrong, Keith

Interference and safety: design, training and solutions

Details

Services Provided:

Training, design and problem-solving services in EMC, EMI, RFI, Interference, Emissions, Immunity, Susceptibility, Electromagnetic Interference, Safety, and EMC for Functional Safety.

For every type of device, product, equipment, vehicle, appliance, apparatus, machine, system or installation.

For reducing financial risks, increasing profits, increasing uptime, improving safety, or achieving regulatory compliance (e.g. EU Directives such as EMC and LVD).

Lawrence, Roger

Motors VFD ASD, Industrial Reliability, PQ, Energy Mgmt, Renewable, DG

Details

Services Provided:

Roger G. Lawrence PE CEM is an independent consultant and sole proprietor based in Raleigh, North Carolina. He provides specialized engineering services locally, nationally, and internationally. His activities cover a broad spectrum of engineering functions from practical hands-on trouble shooting and the development of low cost practical solutions to concept development. He has published a number of technical papers and presents turorials and workshops. He specializes in Electrical Reliability, Motors, Adjustable Speed Drives, Power Quality, Energy Storage, Energy Conservation, Energy Intensity, and Distributed Generation. He promotes compatibility in industrial electrical systems for increased efficiency, reliability, and energy savings. He applies the use of Advanced Control and Power Technologies to improve industrial electrical reliability and energy conservation. He is presently involved in the development of Pulse Power Sparker Technology and its potential applications.

Stokes, Geoffrey

Electrical Safety Consultant and Expert Witness

Details

Services Provided:

Consultancy - electrical (LV and HV)

Health and safety (Policy development, safe systems of work, method statements, risk assessment etc)

Training (e.g. Electricity at Work Regulations, safe isolation procedures etc)

Training (Management Systems)

Technical writing (Technical books – guidance, reports etc.)

Electrical installation design appraisal

Retrospective installation design

Periodic inspection

Expert witness work (reports and Court appearances)

Yardley, Russell John

Power electronics consultant

Details

Services Provided:

The services of myself, Russell John Yardley, I supply via my company, Northstead Design Ltd.
My main area of expertise is Power electronics and its control and in particular
Switched mode power supply design. (SMPS).
Related to this I get involved in the design of transformers and inductors for bespoke power supply design.
Prior to branching off as a freelance electronics engineer I worked for the following company's as an electronic
design and development engineer:-
GEC Industrial Controls (Kidsgrove 1982-1986)
Powernetics (Loughboro 1986-1990)
Pektron (Derby 1990-1992)
Erskine Systems (Scarborough 1992-2000)

Typical services I offer are:-

• Electronic Circuit Design
• Consultancy/Advice:- As and when needed priced by the hour/day.
• Existing products and support issues

• Electronic/product design reviews
• Electronic equipment FMEA’s and single fault test plans
• Power electronics design/development and assistance in the same.
• Switched Mode Power Supply (SMPS) design and development assistance.
• Circuit simulation and feasibility studies.
• EMC compliance troubleshooting assistance
• Technical documentation. Product specifications, test specifications, product operating specifications, circuit design description.
• Test procedures.
• Design Review assistance (from a 3rd party point of view)
• General electronic development “bench” testing
• Design and verification testing
• Component reliability issues
• Design to cost exercises
• Product failure investigations
• PCB layout assistance
• Embedded micro and associated firmware
• Component obsolescence issues
• Product specifications
• Product compliance work
• Product reliability improvements
• Component reliability issues (Failures attributed to component manufacture, product design issues, manufacturing issues).
• Alternative component approval including verification testing and ruggedness evaluation
• Existing product support issues
• Temporary electronic design/development engineer hire at “busy times” or fill in if any of your own design engineers leave or are temporarily off sick/away.
• Pick up the pieces of a project if your electronics design engineer leaves you “without a paddle”
• Full design “fit for purpose” reports on your electronic products. Advance warning of potential weaknesses/design issues which could cause failure returns or dangerous issues in the field.
• SMPS topology choice decisions.
• Analogue, digital and Power electronics design/development/troubleshooting.
• Design of transformers, inductors (chokes) for power conversion or filtering. Ferrite, powder, iron cored etc. Design down to individual “copper” and core geometry/type.
• Power electronics/Power supply education and training.
• Customer support issues.
• OEM , power supply/equipment sourcing and choice issues
• Design/development engineer recruitment personnel assessment reports. Vetting the suitability and capability of prospective design engineers/technicians your HR department are looking to recruit.
• Project management
• Expert witness consultation, reports and related services
• Electronic equipment diagnostics and repair

Electricity Utilities

Anderson, Antony

Armstrong, Keith

Lawrence, Roger

Stokes, Geoffrey

Yardley, Russell John

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