January 1999
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 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
And More
Earthing, Lightning Protection and Industrial EMC
The striking facts about lightning and surge protection
D Goldman (Dennis Goldman & Associates) ,
This topic includes issues relating to the power supply system right across to the instrumentation and IT system
The six point protection plan for lightning, surge protection and earthing
RJ Gumley (Erico Technologies) ,
A six point protection plan is the best check list to cover all damage mechanisms
Level Measurement and Control
Consideration of a high temperature radar level sensor: high temperature radar sensors for liquid level measurement
A Wynn (Vega Instruments) ,
A high-temperature radar sensor for non-contact liquid level measurement
Level-radar gauging systems for storage and process tanks for paraffin and products with low relative permittivity
U Drews, HO Shumann and F Panzke (Krohne Messtechnik) ,
Measurements can be performed in process tanks regardless of the presence of foam, vapour and condensate
Pressure Measurement and Control
Pressure swiches - A short refresher
R McLeman (Blanes Instruments) ,
The mechanical pressure switch is a passive device, requiring no power to operate, and in process plants offers a completely redundant safety system
Transformers, Substations, Protection and Control Gear
Reliability analysis of transmission protection using fault tree methods
EO Schweitzer III (Schweitzer Engineering Laboratories, USA) ,
The use of fault tree analysis as one method of analysing the reliability of these complex systems
