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AssigneeSchneider Electric Industries SAS
InventorsEric Domejean, Jérôme Brenguier
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An electrical circuit breaker with overvoltage protection includes a pair of connection terminals, a main semiconductor switch including at least one semiconductor component and a pair of separable contacts forming a disconnector connected in series with the main semiconductor switch between the connection terminals. The electrical circuit breaker also includes a first protection system connected in parallel with the main switch, the first protection system including a first protection device including a varistor and a first switch connected in series with the first protection device. The electrical circuit breaker further includes a second protection system, connected in parallel with the first protection system and said the main semiconductor switch, the second protection system including a second protection device including a transient voltage suppression diode.
An electrical circuit breaker with overvoltage protection, comprising a pair of connection terminals, a main semiconductor switch comprising at least one semiconductor component and a pair of separable contacts forming a disconnector connected in series with the main semiconductor switch between the connection terminals, wherein the electrical circuit breaker comprises a first protection system connected in parallel with the main switch, the first protection system comprising a first protection device comprising a varistor and a first switch connected in series with the first protection device, and a second protection system, connected in parallel with said first protection system and said main semiconductor switch, the second protection system comprising a second protection device comprising a transient voltage suppression diode.
Dependencies are inferred from the claim text.