This standard describes electrical and mechanical requirements of single and polyphase sealed dry-type distribution and power transformers or autotransformers, with a voltage of 601 V or higher in the highest voltage winding. This standard applies to all sealed dry-type transformers, including those with solid cast and/or resin-encapsulated windings except as follows: a) Transformers described as exceptions in IEEE Std C57.12.01 b) Ventilated transformers c) Nonventilated transformers

定价： 59元 / 折扣价： 51 元

This recommended practice establishes methods by which equipment may be tested for resistance to the effects of arcing due to an internal fault. Equipment types covered in this recommended practice include metal-enclosed switchgear as defined by IEEE Std C37.20.1™, IEEE Std C37.20.2™, IEEE Std C37.20.3™ and IEEE Std C37.20.9™; metal-enclosed bus as defined by IEEE Std C37.23™; medium-voltage ac controllers as defined by UL 347; motor control centers as defined by UL 845; switchboards as defined… read more by UL 891; and metal-enclosed medium-voltage air-insulated circuit breakers for outdoor application defined by IEEE Std C37.04™ (see note).8 This recommended practice applies only to equipment utilizing air or other insulating gas as the primary insulation medium and rated 52 kV ac or below. It applies to both indoor and outdoor equipment; however, special consideration should be given to the building size and construction for indoor applications (not fully addressed by this document). The tests and assessments described in this recommended practice are only applicable to arcing faults occurring entirely in air within the enclosure when doors and covers are properly secured in accordance with the rated accessibility type. This recommended practice does not apply to arcing faults that occur within components of the equipment, such as instrument transformers, sealed interrupting devices, fuses, and so on. Designs that meet the requirements of this recommended practice will be referred to as arc-resistant. NOTE--These circuit breakers are sometimes referred to as dead-tank circuit breakers. read less

定价： 108元 / 折扣价： 92 元

The terms and definitions in this standard are intended to encompass the products within the scope of ac (38 kV and below for air-insulated equipment, 52V kV and below for gas-insulated equipment) and dc (3.2 kV and below) power switchgear assemblies for switching, interrupting, metering, protection, and regulating purposes as used primarily in connection with generation, transmission, distribution, and conversion of electric power.

定价： 56元 / 折扣价： 48 元

The requirements for gas-insulated substations (GIS) for alternating current (ac) applications above 52 kV are contained in this standard. GIS is an assembly of switching and bus components and may contain a number of buses, circuit breakers, switches, instrument transformers, arresters, and primary terminations. This standard includes all the requirements (including switching requirements) of disconnect switches, ground switches, and fault making ground switches included in a GIS. For the… read more other components comprising the GIS, the additional and/or specific GIS requirements are contained in this standard. read less

定价： 93元 / 折扣价： 80 元

Describe approaches to continuous thermal monitoring of electrical power distribution equipment to optimize system reliability and elevate safe maintenance practices.

定价： 84元 / 折扣价： 72 元

This guide is for the development of specifications for the technical requirements for the design, fabrication, testing, installation, and in-service performance of a high-voltage gas-insulated substation (GIS).

定价： 84元 / 折扣价： 72 元

This guide is for the development of specifications for the technical requirements for the design, fabrication, testing, installation, and in-service performance of a high-voltage gas-insulated substation (GIS).

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This standard covers the design, testing, and installation of metal enclosed switchgear that incorporates gas (typically SF6) at higher than ambient pressure as an insulation medium for alternating-current applications above 1 kV to 52 kV. Contents of switchgear may include but are not limited to circuit breakers, switches, bushings, buses, instrument transformers, cable terminations, instrumentation, metering and controls, and protective relays. In a vertical section of the switchgear, some or… read more all of the medium voltage compartment(s) shall be comprised of a gas pressure system for the primary insulating medium. This standard covers both indoor and outdoor installations.This does not cover switchgear that is covered under C37.20.2, C37.20.3, or C37.74 that uses individual components that are gas insulated such as switches, circuit breakers and other equipment, nor does it fully cover these components which are covered by their individual component standards. read less

定价： 0元 / 折扣价： 0 元

This guide applies specifically to mobile high-voltage gas-insulated substation (GIS) equipment rated above 52 kV. It is used for developing specifications, design, fabrication, testing, installation, commissioning, operation, maintenance, storage, and transportation of mobile GIS.

定价： 91元 / 折扣价： 78 元

This recommended practice establishes methods by which equipment may be tested for resistance to the effects of arcing due to an internal fault. Equipment types covered in this recommended practice include metal-enclosed switchgear as defined by IEEE Std C37.20.1, IEEE Std C37.20.2, IEEE Std C37.20.3 and IEEE Std C37.20.9; metal-enclosed bus as defined by IEEE Std C37.23; medium-voltage ac controllers as defined by UL 347; motor control centers as defined by UL 845; switchboards as defined by… read more UL 891; and metal-enclosed medium-voltage air-insulated circuit breakers for outdoor application defined by IEEE Std C37.04 (see note). This recommended practice applies only to equipment utilizing air or other insulating gas as the primary insulation medium and rated 52 kV ac or below. It applies to both indoor and outdoor equipment; however, special consideration should be given to the building size and construction for indoor applications (not fully addressed by this document). The tests and assessments described in this recommended practice are only applicable to arcing faults occurring entirely in air within the enclosure when doors and covers are properly secured in accordance with the rated accessibility type. This recommended practice does not apply to arcing faults that occur within components of the equipment, such as instrument transformers, sealed interrupting devices, fuses, and so on. Designs that meet the requirements of this recommended practice will be referred to as arc-resistant. NOTE—These circuit breakers are sometimes referred to as dead-tank circuit breakers read less

定价： 108元 / 折扣价： 92 元

This standard is for sealed dry-type transformers, 501 kVA and larger, with high-voltage 601 to 34500 volts inclusive and low-voltage 208Y/120 to 4160 volts inclusive. This standard is intended to set forth characteristics relating to performance, limited electrical and mechanical interchangeability, and to assist in the proper selection of such equipment.This standard does not apply to other types of transformers, such as specialty, ventilated dry-type, padmounted dry-type, liquid immersed, instrument, regulating, furnace, mine, and rectifier operations.

定价： 55元 / 折扣价： 47 元

This standard describes electrical and mechanical requirements of single and polyphase sealed dry-type distribution and power transformers or autotransformers, with a voltage of 601 V or higher in the highest voltage winding. This standard applies to all sealed dry-type transformers, including those with solid cast and/or resin-encapsulated windings, except as follows: a) Transformers described as exceptions in IEEE Std C57.12.01™ b) Ventilated transformers c) Nonventilated transformers

定价： 56元 / 折扣价： 48 元

This standard covers the test procedures for enclosed low-voltage ac power circuit protectors. NOTE — In this standard, the term "circuit protector" shall be considered to mean "enclosed low-voltage ac power circuit protector," unless qualified by other descriptive terms.

定价： 56元 / 折扣价： 48 元

This standard covers the design, testing, and installation of metal-enclosed switchgear that incorporates gas (typically SF6) at higher than ambient pressure as an insulation medium for alternating-current applications rated above 1 kV to 52 kV. The contents of the switchgear may include but are not limited to circuit breakers, switches, bushings, buses, instrument transformers, cable terminations, instrumentation, metering and controls, and protective relays. In a vertical section of the… read more switchgear, some or all of the medium-voltage compartment(s) shall be composed of a gas pressure system for the primary insulating medium. This standard covers both indoor and outdoor installations. This standard covers switchgear using sealed pressure systems or closed pressure systems. Switchgear employing controlled pressure systems is not covered by this standard. This standard also does not cover switchgear that is covered under IEEE Std C37.20.2(TM), IEEE Std C37.20.3(TM), or IEEE Std C37.74(TM)-2014 that uses individual components that are gas-insulated such as switches, circuit breakers, and other equipment, nor does it fully cover those components that are covered by their individual component standards. read less

定价： 160元 / 折扣价： 136 元

This standard specifies terms and definitions that encompass products within the scope of ac (48.3 kV and below for air-insulated equipment, 52 kV and below for gas-insulated equipment) and dc (3.2 kV and below) power switchgear assemblies for switching, interrupting, metering, protection, and regulating purposes as used primarily in connection with generation, transmission, distribution, and conversion of electric power.

定价： 56元 / 折扣价： 48 元