Intelligent Electronic Devices Electrical protection is as fundamental to the generation, transmission and distribution of electricity as generators, transformers and transmission lines. A couple of decades ago microprocessor based relays …
This study was undertaken as part of the NEMA Global Strategy Initiative to increase sales and use of NEMA electrical products in markets around the globe and to make it …
Introduction It is the Electrical Engineer’s responsiblility to select electrical equipment. The choice between metal enclosed and metal-clad switchgear is a decision for the Electrical Engineer to make. Metal-clad switchgear …
What is IEC 60079 IEC 60079 is a series of international standards addressing the equipment and systems intended for use in explosive atmospheres. These standards is published by the International …
What is IEC 60865? IEC 60865 pertains to standards set by the International Electrotechnical Commission (IEC) that address the effects of short-circuit currents in three-phase a.c. systems. The purpose of …
Almost always, stationary battery rooms ventilation is an argument among engineers. However, seldom do their reasoning are based on scientific evidence to prove their position. IEC std 62485 provides a …