Solid state breaker in China in Botswana

What is a solid-state breaker?

The solid-state breaker concept replaces the traditional moving parts of an electromechanical circuit breaker with semiconductors and advanced software algorithms that control the power and can interrupt extreme currents faster than ever before.

What is the difference between a mechanical and solid-state circuit breaker?

Solid-state technology guarantees an extremely fast interruption and clears a fault in a few microseconds. In comparison, a mechanical circuit breaker with the same frame size takes a few milliseconds. ABB’s solid-state circuit breaker can detect and respond to a short circuit fault 100 times faster than a mechanical circuit breaker.

Why are solid-state circuit breaker variants gaining a bigger market share?

With advancements in the wide-bandgap semiconductor technology, solid-state circuit breaker variants are taking on a bigger market share. Wide-bandgap semiconductor switches have lower on-state losses and higher efficiency during normal operation compared to silicon-based semiconductors.

Are sic FETs a good choice for solid-state circuit breakers?

Interest in solid-state circuit breakers is rising, and normally-off SiC FETs in a dual-gate setup offer a simplified path to high-current DC and AC protection solutions. 10BASE-T1S is set to replace traditional interfaces, while being faster and only using single twisted pair.