HJ Lee, Y Hong-Ik - US Patent 11,804,698, 2023 - Google Patents
A switchboard is provided having a rotating shutter structure that comprises: a switchboard body that is provided with a circuit breaker chamber into which a circuit breaker is inserted …
W Lammers - US Patent 11,075,506, 2021 - Google Patents
A switchgear housing for housing an object, such as a circuit breaker, includes: a wall with an access opening for access to a high voltage connector; at least one shutter plate movable …