In these conditions, surface temperatures of the primary and secondary windings as well as that of the PPTC device remain lower than the device protected by a thermal fuse (see Fig. 2). Data comparing ...

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 ...

One of the most dangerous locations in a power distribution system with regard to incident energy is that first panelboard on the secondary of a transformer. With some thought in your design — even if ...

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, ...

Since the global electricity market adopted an alternating current (ac) system rather than a direct current (dc) system for power transmission and distribution (T&D), switchgear has been the backbone ...