Complex grids depend on equipment such as transformers, protection relays, switchgear, and cables—each of which can develop ...

Nov. 13, 2008, PULLMAN, WA - Schweitzer Engineering Laboratories, Inc. (SEL) is now taking orders for two new products, the SEL-787 and SEL-487E Transformer Protection Relays. These are the first ...

GE’s Digital Energy business has launched its Multilin 845 Transformer Protection System, part of the Multilin 8-Series platform of protective relay devices, which includes the 850 Feeder Protection ...

Industry Trends and Growing Demand for Primary Current Injection Testing Power systems worldwide are undergoing transformation. Aging infrastructure in many regions requires refurbishment and ...

Digi-Key, in collaboration with Ametherm, presents a PTM describing transformer protection from inrush current using the NTC thermistor. This will provide a problem statement describing the inrush ...

Liou Electronics’ product offerings encompass a variety of current transformer types, including the widely used Center ...

Transformer secondary conductor protection for voltage levels less than 1,000V is adequately covered in Art. 240 of the National Electrical Code (NEC) – more specifically, Sec. 240.21(C)(4). There are ...

Experiments show the efficiency of a direct mechanical explosion and fire prevention strategy method. By: Guillaume Perigaud, Sébastien Muller, Gaà«l de Bressy, Ryan Brady and Philippe Magnier, ...

Industrial fires cause damage of about R430-million a year. Transformer fires are disruptive, dangerous and may cause loss of life. Depending on the severity of the fire, the likelihood of explosions ...

Art. 450 begins with the short and to-the-point statement, “This article covers the installation of all transformers,” and then lists eight exceptions. In essence, Art. 450 covers power transformers, ...