Relays and contactors use a variety of technologies to switch signals and power connections. Many devices called relays use similar techniques and topologies, but the terminology can be confusing.

A May 2014 fire knocked out the Martin Drake Power Plant of Colorado Springs Utilities (CSU). The fire damaged all three coal-fired units, quickly disabling the entire 254 MW facility. The plant ...

The objective of protective relays and protective schemes is to protect electrical equipment such as transformers, lines, cables, bus bars, etc. during abnormal system conditions. Hence, protective ...

Protective relays are critical power systems components, and it is essential to design and use them properly to detect power system issues. As NETA-certified technicians, we must be familiar with the ...

Framatome and SEL have installed the first safety-related digital protection relays in a US reactor at the Columbia GS in Washington.

The relay's primary appeal is its ability to do a lesser-switch's bidding but it's capable of so much more. Relays can be wired together to create very useful, simple, and utterly reliable networks.

Electrical engineering is the study and application of electricity, electronics, and electromagnetism. In simple terms, it is about understanding how electricity works in order to use the knowledge ...

Electrical engineers design, develop and analyze key technological systems, like the ones that power electronics, communications and electromagnetics. In UW’s electrical engineering program, students ...