Plugging in an electric vehicle is, in some cases, the equivalent of adding three houses to the grid. That has utilities in California—where the largest number of electric vehicles are sold ...

Power diodes, power MOSFETs, and IGBTs are explained, along with the origins of their switching times. Equivalent circuit models are refined to include the effects of switching loss. The discontinuous ...

GE Renewable Energy’s Grid Solutions unveiled its 420 kV, 63 kA g³ gas-insulated substation (GIS) circuit-breaker prototype. The g³ circuit-breaker was presented to a group of transmission utilities ...

Download this article in PDF format. If you search the internet for “transformer equivalent circuits,” you’ll get five pages of over 100 small circuit diagrams.