A transformer protection relay does not replace upstream devices. It defines responsibility. By clearly assigning fault ...

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 ...

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 ...

Cooper Power Systems has designed its full-featured differential relay, the iXP-420, to provide comprehensive two-winding transformer protection, and monitoring and control. The iXP-420 incorporates ...

Protective relay testing verifies that installed relays will trip correctly under real fault conditions, confirming settings, ...

Franklin Electric has expanded its power grid monitoring product line with the launch of the INCON Distribution Transformer Monitor. The DTM provides meter-grade precision performance monitoring of ...

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 ...