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 ...

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 ...

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 ...

In the first part of this series, featured in the February 2011 issue, we considered the selection of the protective devices of a low-voltage induction motor supplied from a motor control center (MCC) ...

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 ...

In power distribution systems, three-phase transformer configuration directly impacts system reliability and load management.