This project will present uniform methods for testing insulation with direct voltages. It applies to AC electric machines. It covers acceptance testing of new equipment in the factory or in the field after erection and routine maintenance testing of machines that have been in service.

定价： 127元 / 折扣价： 108 元

The scope of this recommended practice is to characterize the surge environment at locations on ac power circuits described in C62.41.1 by means of standardized waveforms and other stress parameters.

定价： 143元 / 折扣价： 122 元

This standard defines concepts and recommended procedures for connecting the grounding systems of alternating Current (AC) industrial and commercial power systems to the earth.

定价： 60元 / 折扣价： 51 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 requirements for the external insulation of outdoor ac high-voltage circuit breakers rated on a symmetrical current basis.

定价： 43元 / 折扣价： 37 元

This document revises the application guide for capacitive current switching for high-voltage circuit breakers rated in accordance with IEEE Std C37.04 and tested in accordance with IEEE Std C37.100.2.6 It supplements IEEE Std C37.010. Circuit breakers rated and manufactured to meet other standards should be applied in accordance with application procedures adapted to their specific ratings.

定价： 103元 / 折扣价： 88 元

This recommended practice is intended to identify, organize and summarize information about high-voltage circuit breakers provided by the manufacturer that knowledgeable users will find useful for the receipt, installation, commissioning, operation and maintenance, and decommissioning of ac high-voltage circuit breakers above 1000 V. This recommended practice recommends categories and an arrangement for the presentation of information in circuit breaker instruction manuals.

定价： 58元 / 折扣价： 50 元

定价： 65元 / 折扣价： 56 元

This is a standard test procedure for the thermal evaluation and qualification of electrical insulation systems (EISs) for random-wound ac electric machinery, where thermal degradation is the dominating aging factor. This procedure compares the relative thermal performance of a candidate EIS to that of a reference EIS. This standard covers insulation systems for such machinery with operating voltage of up to 600 V at 50/60 Hz. This standard provides a statistical method for establishing a… read more relative life-temperature relationship for an insulation system. To have any significance, the reference insulation system must be supported with adequate field-service data. This procedure is intended to evaluate insulation systems for use in air-cooled, random-wound ac electric machinery with "usual service conditions." This procedure, on its own, does not cover insulation systems such as exposure to conducting contaminates, radiation, inverter applications, or operation in oils, refrigerants, or other media that potentially degrade insulating materials. read less

定价： 65元 / 折扣价： 56 元

This standard covers requirements for the pressurized components of ac high-voltage circuit breakers.

定价： 56元 / 折扣价： 48 元

This application guide applies to the ac indoor and outdoor high-voltage circuit breakers rated in accordance with the methods given in IEEE Std C37.04 and IEEE Std C37.04a, listed in IEEE Std C37.06(TM), and tested in accordance with IEEE Std C37.09 and IEEE Std C37.09a.1 Circuit breakers rated and manufactured to meet other standards should be applied in accordance with application procedures adapted to their specific ratings or applications.

定价： 159元 / 折扣价： 136 元

This guide is intended to provide a basis for synthetic testing of circuit breakers (see ANSI/IEEEC37.04-1979 [2]) and to establish the criteria for testing to demonstrate the short-circuit current rating of circuit breakers on a single phase basis. It is recognized that other test requirements exist (such as capacitor switching, or line dropping) but they will be reserved for future consideration. The guide contains typical circuits for demonstrating interrupting capability. These circuits are… read more those in general use and their inclusion should not exclude the development of additional circuits to demonstrate specific capabilities. read less

定价： 203元 / 折扣价： 173 元

This standard covers the following types and preferred ratings for enclosed low-voltage ac power circuit breakers: a) Stationary or drawout type of two-, three-, or four-pole construction with one or more rated maximum voltages of 1058 V, 730 V, 635 V (600 V for units incorporating fuses), 508 V, or 254 V for application on systems having nominal voltages of 1000 V, 690 V, 600 V, 480 V, or 240 V respectively b) Unfused or fused type c) Manually operated or power operated, with or without a trip… read more system d) Fused drawout assemblies consisting of current-limiting fuses in a drawout assembly intended to be connected in series with a low-voltage ac power circuit breaker to form a nonintegrally fused circuit breaker; In this standard, the term circuit breaker shall mean enclosed low-voltage ac power circuit breaker, either fused or unfused. The term unfused circuit breaker shall mean a circuit breaker without either integrally or nonintegrally mounted fuses, and the term fused circuit breaker shall mean a circuit breaker incorporating current-limiting fuses, whether integrally mounted or nonintegrally mounted. read less

定价： 104元 / 折扣价： 89 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

The scope of this recommended practice is to characterize the surge environment at locations on ac power circuits described in IEEE Std C62.41.1 by means of standardized waveforms and other stress parameters. The surges considered in this recommended practice do not exceed one half-cycle of the normal mains waveform (fundamental frequency) in duration. They can be periodic or random events and can appear in any combination of line, neutral, or grounding conductors. They include surges with… read more amplitudes, durations, or rates of change sufficient to cause equipment damage or operational upset. While surge protective devices (SPDs) acting primarily on the amplitude of the voltage or current are often applied to divert the damaging surges, the upsetting surges might require other remedies. read less

定价： 70元 / 折扣价： 60 元