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Technical Expertise
Medium Voltage Distribution
Experience of medium voltage distribution system up to 33 kV. This has included
substation design for power supply utilities, distribution in petrochemical and
industrial plants and township reticulation.
Experienced in the design, installation and commissioning of all medium voltage
equipment including transformers (up to 44 MVA), GIS and AIS switchgear (both indoor
and outdoor), protection relays and transformer voltage regulation control, reactive
power, insulation coordination, earthing and lightning protection and associate
SCADA systems specific to this type of environment.
Low Voltage Distribution
Fully familiar with all elements of low voltage distribution from simple radial
systems to achieving Tier IV certification in mission critical facilities. Familiar
with all relevant standards for installation (IEE Wiring Regulations, IEC60364,
Hong Kong, China, New Zealand and Middle East regulations, etc.). Working knowledge
of NEC and US practices in addition.
Individual areas/equipment are too numerous to mention, but if it is related to
low voltage distribution I have probably some direct experience. If not direct experience,
the knowledge to I have gained will make using anything unconventional or one off
no problem at all.
400 Hz Power Systems
Detailed knowledge of 400 Hz power systems, particularly for Airports and maintenance
hangers. This includes frequency convertors (centralized and stand alone), voltage
regulation and maintaining aircraft required power characteristics and cabling and
associated handling systems (PITS, Winding Systems, etc.).
Building Services
Signification experience of all design, construction and commissioning elements
for large (high rise and special function) building. This experience covers main
utility MV intake, low voltage distribution, busbar trunking systems, cables and
containment, standby and UPS power, lightning protection, lighting and control,
Building Management Systems, Fire alarm systems and sustainability rating systems.
Experience has been through the full building life cycle from concept, design, tender,
construction, commissioning and operation. Fully able to deal with the challenges
of dealing with utilities and supply authorities, architects, other third parties
and permitting and approvals.
Motors
Design installation and commissioning for motors form a few kW to the MW range at
low voltage, 6.6 kV and 11kV. Largest motor was the design of the 18MW synchronous
compressor motor and associated protection/soft starter systems for the Air Separation
Plant at Mossgas.
Able to work with asynchronous and synchronous motors, fully experienced with variable
frequency drive systems (low voltage and medium voltage), motor starting including
direct online, star delta, wound rotor variable resistance and soft starting and
the design automated motor control centres.
Electrical Protection Systems
Extensive electrical protection experience on power and industrial systems (up to
33kV), covering fault level studies, relay selection, discrimination studies, system
design, commissioning and troubleshooting. This has been on a variety projects ranging
from small local motor control panels to large petrochemical plants and power stations
and I would consider protection systems as one of my specialist areas.
Knowledge ranges from theoretical (i.e. transient stability studies using, fault
level calculations, etc.) to hands-on practical (actual testing and commissioning,
investigation of intermittent tripping, etc.). Fully familiar numerical protection
relays and implementing substation systems to IEC 61850. Experience and knowledge
of software such as DIgSILENT, ATP/EMTP, etc.
Discrimination (design, studies and fault finding) is an area I have extensive experience
of. Design, commissioning and setting of protection systems to achieve the best
possible operation under abnormal conditions.
Standards
I have an in depth knowledge and I am very keen on promoting the application of
standards, particularly IEC. Actively championed the adoption of IEC standards (including
document production) and development of in house design standards with a focus on
improving the quality of work while reducing time and cost.
Control and Automation
Extensive control and automation system experience ranging from small local control
schemes to large multi-million dollar facilities. This has covered a wide range
of systems, field enterprise level, hardware, software, system integration, installation
and commissioning.
During my career I have designed, installed, commissioned and used various automation
systems and been involved with many technologies. These technologies include
- Industrial process automation and building management systems
- PLC (particularly Siemens and Alan Bradley) and DDC (Metasys, APOGEE)
- Fieldbus systems (particularly AS-Interface) and Safety at Work
- Sensors (analog, digital, pulse, flow, temperature, level, stress, etc.)
- Protocols such as Profibus, Modbus, IEC61850, LonWorks, BACnet, etc.
- TCP/IP (routers, switches, physical, gateways, converters, VoIP, etc.)
- SCADA and HMI/MMI (WinCC, InTouch, Genesis, SCX6etc)
- Theory (analysis, modeling, tuning, fuzzy logic, etc.)
- Programming (ladder, function diagram, statement list, visual basic, etc).
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