January 2000
NEI's products are based on over 50 years of electrical engineering experience, enhanced market understanding and excellence in service. All products are manufactured and tested to world manufacturing standards - SABS 780, IEC 76, BS 171 and the relevant NRS specifications. A new corrugated tank technology now complements NEI's existing products which include distribution transformers < 3150 kVA, 33 kV; compact substations < 1000 kVA, 22 kV; pole mounted transformers < 100 kVA, 33 kV; power transformers < 40 MVA, 132 kV; flame proof transformers 100-2000 kVA < 11 kV; mobile underground station 200-630 kVA < 11 kV.
Errol Kotze - NEI Transformers
Earthing, Lightning Protection and Industrial EMC
Lightning and surge protection - the correct approach
Craig Meintjies (Clearline Protection Systems) ,
The correct selection and installation of SPDs determines the resilience of the protected system
Energy Efficiency, Supply and Management
Engineering Projects and Plant
The African Renaissance - overcoming project financial constraints
Ian McKechnie (Global Africa Projects (GAP)) ,
An alternative project paradigm as a viable option for the implementation of technology based projects
Level Measurement and Control
Time-of-flight level measurements gain ground
John Immelman (Endress + Hauser) ,
Two popular solutions for non-contact time-of-flight level measurement and an invasive system which uses time-of-flight technology
Pressure Measurement and Control
What is really required to measure pressure accurately?
Rodney Glatt (N&Z Instrumentation and Control) ,
How have pressure sensors developed and what attributes are important?
Transformers, Substations, Protection and Control Gear
Power Transformer Sensors
Kobus de Villiers (Wika Instruments) ,
Protection of power transformers by measuring and monitoring different conditions
Distribution Transformers: short circuit withstand capability and the forces developed
John Gavin (NEITransformers) ,
An insight into the most effective mehods of design and manufacture required to withstand the forces generated under short circuit fault conditions
