A popular electrical component used on many control circuits is the step-down transformer. It is the power source for a separate lower-voltage circuit which typically controls the operation of a ...

This story was originally published on Utility Dive. To receive daily news and insights, subscribe to our free daily Utility Dive newsletter. In July, U.S. steelmaker Cleveland-Cliffs revealed plans ...

Similar to feeder taps, covered in the last issue, transformer secondary conductors can be every bit as confusing. Let's take a closer look at 240.21(C) to help clear up any misconceptions. As with ...

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 ...

ABB has won orders totaling more than $85 million to upgrade transmission infrastructure for Canada’s Hydro-Québec (HQ). The contracts will upgrade the utility’s 800-kV air-insulated switchgear ...