For utilities, proper protection against high voltage transient overvoltages and overloads is critical to ensure maximum life of their power transformers. Failure to do so can result in significant ...

Note: All Code references are based on the 2014 NEC. The NEC has separate sections for transformer feeder protection and transformer protection. Article 240 lists requirements for transformer feeder ...

In gas-insulated systems, for example in 110-kV voltage or above, it is not easy to meet the requirement of protecting voltage transformers with primary fuses. I have not found any manufacturer that ...

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 ...

Menlo Park, Calif. – Tyco Electronics' power components division has launched two products in its Raychem line. The company says its LVR series of PolySwitch resettable fuses is one of the first ...

It’s easy to trivialize the need for a fuse and how to select one. We have all been annoyed or exasperated by a blown fuse. Sometimes we wish there was no such component needed for our circuits. With ...