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Product Code:SAE J1937
Title:Engine Testing With Low-Temperature Charge Air-Cooler Systems in a Dynamometer Test Cell (STABILIZED Sep 2011)
Issuing Committee:Sae Ic Powertrain Steering Committee
Scope: The methods presented in this SAE Recommended Practice apply to the controlled testing of low-temperature charge, air-cooled, heavy-duty diesel engines. This document encompasses the following main sections: a.) Definitions of pertinent parameters; b.) Vehicle testing to determine typical values for these parameters; c.) Description of the setup and operation of the test cell system; d.) Validation testing of the test cell system. While not covered in this document, computer modeling of the vehicle engine cooler system is recognized as a valid tool to determine cooler system performance and could be utilized to supplement the testing described. However, adequate in-vehicle testing should be performed to validate the model before it is used for the purposes outlined. The procedure makes references to test cycles that are prescribed by the United States Environmental Protection Agency (US EPA) and are contained in the Code of Federal Regulations. The existence of other international test cycles, which can be used for validation testing, is acknowledged.【英文标准名称】:Measuringrelaysandprotectionequipment-Functionalrequirementsforover/undercurrentprotection
【原文标准名称】:继电器和保护设备测量.过电流/低电流保护用功能要求
【标准号】:BSEN60255-151-2009
【标准状态】:现行
【国别】:英国
【发布日期】:2010-08-31
【实施或试行日期】:2010-08-31
【发布单位】:英国标准学会(GB-BSI)
【起草单位】:BSI
【标准类型】:()
【标准水平】:()
【中文主题词】:连接;触点;定义;接地漏电;电气工程;电绝缘;电气保护设备;作标记;量值继电器;机械性能;过电流保护;精密度;保护设备;额定值;继电器;安全工程;规范(验收);测试;热测量
【英文主题词】:Connections;Contact;Definitions;Earthleakage;Electricalengineering;Electricalinsulation;Electricalprotectionequipment;Marking;Measuringrelays;Mechanicalproperties;Overcurrentprotection;Precision;Protectiondevices;Ratings;Relays;Safetyengineering;Specification(approval);Testing;Thermalmeasurement
【摘要】:ThispartofIEC60255specifiesminimumrequirementsforover/undercurrentrelays.Thisstandardincludesaspecificationoftheprotectionfunction,measurementcharacteristicsandtimedelaycharacteristics.ThispartofIEC60255definestheinfluencingfactorsthataffecttheaccuracyundersteadystateconditionsandperformancecharacteristicsduringdynamicconditions.Thetestmethodologiesforverifyingperformancecharacteristicsandaccuracyarealsoincludedinthisstandard.
【中国标准分类号】:K33
【国际标准分类号】:29_120_70
【页数】:36P;A4
【正文语种】:英语