In the HVdc circuit breaker testing process, a thyristor is used to generate high current for the testing purpose. However, the reverse recovery process (RRP) of a thyristor can induce a significant ...

Sizes This year's iPhone 12 Pro models come in 6.1 and 6.7-inch sizes, with the 6.7-inch model positioned as the largest iPhone that Apple has released to date.

Solid-state dc circuit breaker (SSCB) plays a very important role in the dc system protection against fast rising overload and short-circuit faults. Among various SSCB topologies, z-source dc circuit ...

To find the best blackout shades, we spent 25 hours on research, interviewed five experts, and tested 12 models. Read to learn which shades we found work best.