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 ...

Circuit breakers now sport advanced features that include remote control and operational status reporting. Engineers have long considered circuit protection a stable if somewhat unglamorous area.

Reviewing a typical protective device trip curve (click here to see Fig. 2), it can be divided into three regions. First is the “instantaneous region,” which is the region intended to interrupt ...

You can use several circuit protection schemes in power supplies to help guard against fault conditions and the resultant overtemperature damage, including thermal fuses, current fuses, and circuit ...

Raychem Circuit Protection, a business unit of Tyco Electronics, has announced the introduction of its PolySwitch(tm) LVR series of resettable circuit protection devices. PolySwitch LVR devices help ...

My introduction to circuit protection came at the tender age of eight. Being a curious lad with an inventive – and apparently self-destructive – bent, I decided to make my mother a lamp. I put a hose ...