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This standard covers definite purpose switching devices for use in metal-enclosed low-voltage power circuit breaker switchgear. The switching devices shall be fused, drawout type, three-pole construction, with one or more rated maximum ac voltages of 600 V, 508 V, and 254 V for application on systems having nominal ac voltages of 600 V, 480 V, and 240 V. The switching devices are power operated with integral or separately mounted overcurrent protective devices. This standard addresses service conditions, ratings, functional components, temperature limitations and classifications of insulating materials, insulation (dielectric) withstand voltage requirements, test procedures, and application. The switching devices are normally used in applications that require frequency of operation greater than normal operations expected of low-voltage power circuit breakers.
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Redesignated as IEEE C37.34e. The technical requirements for the design, fabrication, testing, and installation of a gas-insulated substation (GIS) are covered; its intent is advisory. This guide discusses parameters to be supplied by the purchaser and technical requirements for the design, fabrication, testing, and installation to be furnished by the manufacturer. Environmental conditions, general and specific equipment requirements, and a proposal data sheet form are included to aid the user.
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This document provides in compact form recommendations and technical reasons for the selection, design and application of aircraft electric power systems and electrically-actuated load equipment, without going into specific detailed designs. The standard was originally published in 1960 as AIEE 750. Sections of this guide are: introduction; criteria for the electric system; characteristics of alternating-current generators affecting their application; distribution system design; symmetrical components; principal subdivisions of electric system; selection of the system; installation practices; equipment characteristics; and electric system design procedures.
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Metal-enclosed interrupter (MEI) switchgear assemblies containing, but not limited to, such devices as interrupter switches; selector switches; power fuses; circuit breakers; control, instrumentation and metering devices; and protective equipment are included in this standard. It includes, but is not specifically limited to, equipment for the control and protection of apparatus used for distribution of electrical power.
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This standard is a revision of American National Standard Specifications for Distribution Fuse Disconnecting Switches, Fuse Supports, and Current Limiting Fuses, ANSI C37.47-1969, to bring it up to date and in line with present requirements for high-voltage fuses and switches.
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This standard is a revision of American National Standard Specifications for Distribution Fuse Disconnecting Switches, Fuse Supports, and Current Limiting Fuses, ANSI C37.47-1969, to bring it up to date and in line with present requirements for high-voltage fuses and switches.
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Some power electronic converters are specifically designed to power equipment under a smoothed DC voltage. Therefore, the filtering part necessarily involves the use of auxiliary passive components (inductors and capacitors). This book deals with technical aspects such as classical separation between isolated and non-isolated power supplies, and soft switching through a special converter. It addresses the problem of regulating the output voltage of the switching power supplies in terms of modeling and obtaining transfer of SMPS functions.Power Electronics for Industry and Transport, Volume 3,
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Electric filters --- Power electronics. --- Switching power supplies. --- Design and construction.
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Power Supply design is all about detail. And a large part of that detail lies in the practical domain, largely because of the typically small number of microseconds of switching periods involved, and the even smaller tens of nanoseconds of switch transition times --- all these, in effect accentuating various ""second-order"" effects, that eventually end up playing prime havoc with ""normal"" expectations of how the circuit should behave. So not unsurprisingly, even after reading several books, most readers still find themselves no closer to the ultimate goal of designing an actual power supply
Electric current converters. --- Semiconductor switches. --- Switching power supplies.
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