Design of a snubber circuit for low voltage DC solid‐state circuit breakers

نویسندگان

چکیده

Solid-state circuit breakers (SSCBs) are designed to interrupt fault currents typically several orders faster than its electromechanical counterparts. However, such an ultrafast switching operation would produce a dangerous overvoltage which might cause damages SSCBs and other elements in the system. This paper proposes novel snubber for suppressing overvoltage. It takes advantages of both resistor-capacitor-diode (RCD) snubbers metal oxide varistors (MOVs). Its operating process is analysed before proposed 400V DC designed. Pspice simulator employed simulating prototype SSCB with built tested lab-scale The results simulation experiment validate effectiveness snubber.

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ژورنال

عنوان ژورنال: Iet Power Electronics

سال: 2021

ISSN: ['1755-4535', '1755-4543']

DOI: https://doi.org/10.1049/pel2.12092