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    1.Introduction(LYBSY-3000 0.05%three-phasepowerstandardsource) LYBSY-3000 istheuseofmoderntesting,DDSwaveformsynthesis,high-speeddigitalprocessor(DSP),complexprogrammablelogicarray(CPLD),large-scaleintegratedpoweramplifier,andthedesignofembeddedcomputersystemtechnology.Itissuitableforelectricenergymeter(optional),ACandDCindicat...
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    Chapter1Devicefeaturesandtechnicalparameters Section1Mainfeatures(LY808Relayprotectiontest) ?Flexiblecombinationofvoltageandcurrentoutput Sixphasevoltageandsixphasecurrentcanbeoutput,whichhasmadeitispossiabletobeanycombition,suchastheoutputmodeofthecombinationofconventionalfourphasecurrentandthree-phasecurrent,sixphasevoltagem...
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    Chapter1Devicefeaturesandtechnicalparameters Section1Mainfeatures(LY808RelayProtectionAnalyzer) ?Flexiblecombinationofvoltageandcurrentoutput Sixphasevoltageandsixphasecurrentcanbeoutput,whichhasmadeitispossiabletobeanycombition,suchastheoutputmodeofthecombinationofconventionalfourphasecurrentandthree-phasecurrent,sixphasevolt...
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    Chapter1Devicefeaturesandtechnicalparameters Section1Mainfeatures(LY808RelayProtectionDeviceTester) ?Flexiblecombinationofvoltageandcurrentoutput Sixphasevoltageandsixphasecurrentcanbeoutput,whichhasmadeitispossiabletobeanycombition,suchastheoutputmodeofthecombinationofconventionalfourphasecurrentandthree-phasecurrent,sixphase...
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    1.characteristicsandperformance Theautomaticanti-interferencedifferentfrequencydielectriclosstesterisusedforon-siteanti-interferencedielectriclossmeasurement,orprecisiondielectriclossmeasurementinthelaboratory.Theinstrumentisanintegratedstructurewithbuilt-indielectriclossbridge,variablefrequencypowersupply,testtransformerandstandar...
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    1.characteristicsandperformance(LYJS9000FVariablefrequencydielectriclosstester) Theautomaticanti-interferencedifferentfrequencydielectriclosstesterisusedforon-siteanti-interferencedielectriclossmeasurement,orprecisiondielectriclossmeasurementinthelaboratory.Theinstrumentisanintegratedstructurewithbuilt-indielectriclossbridge,vari...
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    1.characteristicsandperformance(LYJS9000FTransformerCapacitance&TanDeltaTester ) Theautomaticanti-interferencedifferentfrequencydielectriclosstesterisusedforon-siteanti-interferencedielectriclossmeasurement,orprecisiondielectriclossmeasurementinthelaboratory.Theinstrumentisanintegratedstructurewithbuilt-indielectriclossb...
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    SystemIntroduction TheSweepFrequencyResponseAnalyzerisusedforpowertransformerwithvoltagegradeof66kVandaboveandothertransformerswithspecialpurpose.Thepowertransformerisinevitablyvulnerabletoimpulseofvariousfaultshort-circuitcurrentorphysicalcollisionintheprocessofoperationandtransportationandthetransformerwindingsmaylosestabilityu...
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    SystemIntroduction TheSweepFrequencyResponseAnalyzerisusedforpowertransformerwithvoltagegradeof66kVandaboveandothertransformerswithspecialpurpose.Thepowertransformerisinevitablyvulnerabletoimpulseofvariousfaultshort-circuitcurrentorphysicalcollisionintheprocessofoperationandtransportationandthetransformerwindingsmaylosestabilityu...
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    TransformerLVShort-circuitImpedanceTesterappliesto LV loadimpedancetestduringdelivery,overhaul,trialtestandhandovertestofpowertransformers(singlephaseorthree-phase). Itteststheshort-circuitimpedance(%)ofpowervoltageonsiteandcomparesitwiththevalueindicatedonthenameplateorthefactorydefaulttofindoutanydefectsincludingbutnotlimitedto...
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    目前,随着石化、钢铁、造纸、食品、医药企业自动化水平的不断提高,对现场仪表维护人员的技术水平提出了更高要求。为缩短处理仪表故障时间,保证**生产提高经济效益,本文发表一点仪表现场维护经验,供仪表维护人员参考。一、变压器容量测试仪的故障的分析步骤现场仪表测量参数一般分为温度、压力、流量、液位四大参数。现根据测量参数的不同,来分析不同的现...
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    变压器综合特性测试仪的分析探讨,它不仅对纺织品的外观和内在质量具有决定性的作用,而且还直接影响纺织生产过程的稳定性。因此,条干均匀度的分析和测量对纺织品质量的控制和提高具有重要的意义。条干均匀度的分析从二十世纪三十年代以来一直是纺织界的一个热点,先后提出了不匀率系数,变异系数、不匀率指数、变异长度曲线、波长谱、自相关函数等描述纱条不匀...
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    上海来扬科技有限公司的专业报告-用来衡量真空度的单位是什么真空是指低于1标准大气压的气态空间,建立这样一个气态环境,并在该环境中工艺制作、测量分析和科学试验等工作所需的理论及技术称之谓“真空科学与技术”。为保证真空科学与技术的发展和交流。准确、合理地选择和使用有关的计量单位,并实现国际间单位制的统一,是一个十分重要的方面。用来...
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    了解输电线路故障测试仪输电线路故障距离测试仪是用于架空输电线路发生**性接地(短路)或断路(开路)时,测量故障点到测量点(变压器)的距离。该仪器适用于35kV及以上各电压等级的架空输电线,当发生**性单相接地或断线故障时,只要在变电站内对故障线路进行测试,就可准确地测出故障距离,确定故障杆塔,便于抢修人员快速查找故障,缩短抢修时间。仪器必须在线...
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    来扬教你选择合适的大电流发生器上海来扬电气科技有限公司生产的大电流发生器是电力、电气行业在调试中需要大电流场所的必需设备,应用于发电厂、变配电站、电器制造厂及科研院所等部门,属于短时或断续工作制,该产品具备以下特点:1、高精度传感器和高性能14位AD采集芯片2、实时显示输出电流,时间结果,显示直观明了3、完善的过流保护,任意设定目标输出电流...
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