01801nam 2200337 450 99657561530331620231213213050.01-5044-9225-010.1109/IEEESTD.2022.10015659(CKB)4100000012901149(NjHacI)994100000012901149(EXLCZ)99410000001290114920231213d2023 uy 0engur|||||||||||txtrdacontentcrdamediacrrdacarrierC37.20.2-2022 - IEEE Standard for Metal-Clad Switchgear /Institute of Electrical and Electronics EngineersNew York, USA :IEEE,2023.1 online resource (94 pages)Metal-clad (MC) medium-voltage switchgear that contains drawout electrically operated circuit breakers is covered. MC switchgear is compartmentalized to isolate components such as instrumentation, main bus, and both incoming and outgoing connections with grounded metal barriers. Ranges from 4.76 kV to 48.3 kV with main bus continuous current ratings of 1200 A, 2000 A, 3000 A, and 4000 A are the rated maximum voltage levels for metal-clad switchgear . Associated control, instruments, metering, relaying, protective, and regulating devices, as necessary, are also contained by MC switchgear. Service conditions, ratings, temperature limitations and classification of insulating materials, insulation (dielectric) withstand voltage requirements, test procedures, and applications are discussed.Power transistorsPower transistors.621.38412NjHacINjHaclBOOK996575615303316C37.20.2-2022 - IEEE Standard for Metal-Clad Switchgear3880253UNISA