H - Electricity – 02 – B
Patent
H - Electricity
02
B
306/273
H02B 1/14 (2006.01) H02B 11/167 (2006.01) H02B 11/24 (2006.01)
Patent
CA 1048090
ABSTRACT OF THE DISCLOSURE: A circuit breaker protective apparatus including a safety shutter assembly housed in the cubicle of an electric switchboard and forming a diaphragm separating front and rear sections of the cubicle. One or more toroidal winding current transformers are mounted on the partition member of the safety shutter assembly which is provided with ports or pass-through holes corresponding to the insulated line terminal connectors to permit access thereto; each transformer surrounds a corres- ponding opening in the partition member and is magnetically linked with the respective line terminal when the circuit breaker is closed. Both the partition and safety shutter making up the shutter assembly are movable horizontally with respect to the vertical rear wall of the cubicle and the shutter is also movable vertically and parallel tot he partition member to shut the ports of the partition member.
233668
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