Continued from 2nd part of article: Assemblies of switchgear and control panels (part 2) Now coverage of distribution panels and switchboards will be presented including molded case circuit breakers (MCCB), safety switches, panelboards, multimetering equipment, ground fault circuit interrupters. Most of the codes define a circuit breaker as a device designed to open and close a circuit automatically at a predetermined overcurrent values (short circuit or o verload) without injury to itself when properly applied within its rating. A molded case circuit breaker (MCCB) irrelevant of the manufacturer comprises of: - The molded case (frame) - Operating mechanism - Arc extinguishers - Contacts - Trip elements - The terminals (connectors i.e. mechanical / compression lugs or solid bar). Continue reading: electrical-engineering-portal/assemblies-of-switchgear-and-control-panels-part-3
Posted on: Thu, 05 Dec 2013 05:51:11 +0000
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