南澳电气NAYJFH型PT二次压降负载在线测试装置
南澳电气NAYJFH型PT二次压降负载在线测试装置NAYJFHPTsecondaryloadon-linetestingdevice南澳电气NAYJFH型PT二次压降负载在线测试装置功能简介⑴南澳电气NAYJFH型PT二次压降负载在线测试装置能实现三相三线,三相四线、单相全自动测量;⑵使用工程塑料机箱,结识耐用,有效保障测试人员及系统安全;⑶南澳电气NAYJFH型PT二次压降负载在线测试装置有量程自动切换功能,保证测试精度;⑷采用电子式原理线路结合DSP技术是使测试稳定性好,抗干扰能力强;⑸测量完毕,自动计算和负荷相关的各项参数,便于客户分析和试验。⑹南澳电气NAYJFH型PT二次压降负载在线测试装置采用大屏幕中英文液晶显示,所有操作均由中英文菜单提示;数据具备掉电存贮及浏览功能,能与计算机联机传送数据。⑺南澳电气NAYJFH型PT二次压降负载在线测试装置采用大容量7.2V11Ah锂电池供电,对测试回路不产生任何影响,避免系统出现保护的情况。同时在现场无供电电源的情况下使用。⑻二次压降负载测试,采用钳型电流表采样电流,不需要断开二次回路。可以实现不停电在线测量。自动切换量程:测量过程中可以根据测试对象数值的不同切换到不同的位置,使测量精度和显示位数得到保证。⑼工作时间可以长达24小时(***长)。⑽南澳电气NAYJFH型PT二次压降负载在线测试装置附有轻巧充电器,方便测量,在电池电量不足的情况下可以外接充电器测量。⑾仪器体积小,重量轻。⑿宽阔的二次工作电流/电压范围。在50mA的工作电流下,能分辨1mΩ的电阻和电抗,能测试二次额定电流为5A的S级电流互感器的在线实际负荷;在5V的工作电压下,能分辨0.001mS的电导和电纳。⒀能存储480组测量数据,断电后能保持十年。⒁中英文界面大屏幕显示,带有RS-232通讯接口。南澳电气NAYJFH型PT二次压降负载在线测试装置主要技术指标1.环境条件1).温度:-5°C~40°C2).相对湿度:<95%(25°C)3).海拔高度:<2500m4).外界干扰:无特强震动、无特强电磁场2.二次压降负载测试时仪器主要技术指标1).测量范围:比差:0.001%~19.99%角差:0.01’~599’2).分辨率:比差:0.001%角差:0.01’3).仪器基本误差——DX=&plu***n;(1%×X+1%×Y&plu***n;2个字);——DY=&plu***n;(1%×X+1%×Y&plu***n;2个字)。2个字——仪器的量化误差4).电压表头准确度:0.5%5).工作范围——电压:(50~120)V6).仪器指示动作值(提示错误)——误差:比差大于20%或角差大于600’。——电压:电压<2.0V。3.PT二次负荷测试时仪器主要技术指标1).PT二次负荷测试——导纳测量范围:0.1ms—50.0ms——导纳测量准确度:——二次电压(50V-120V)DX=&plu***n;(1%×X+1%×Y&plu***n;2个字)DY=&plu***n;(1%×X+1%×Y&plu***n;2个字)2个字——仪器的量化误差注意:测量值在0.2mS以下时,测试电压应保持在50V以上,同时注意钳表的穿心导线保持居中。此时仪器量化误差为5个字2).电压表头:0.5%4.CT二次负荷测试时仪器主要技术指标——阻抗测量范围:0.1Ω—50.0Ω——阻抗测量准确度:DX=&plu***n;(1%×X+1%×Y&plu***n;2个字)DY=&plu***n;(1%×X+1%×Y&plu***n;2个字)2个字——仪器的量化误差电流表头:1%MainFeatures⑴toachievethree-phasethree-wire,three-phasefour-wire,single-phaseautomaticmeasurement;⑵useofengineeringplasticchassis,gettoknowdurable,effectiveprotectionoftestpersonnelandsystemsecurity;⑶instrumenthasarangeofautomaticswitchingfunctiontoensurethatthetestaccuracy;⑷theuseofelectronicprinciplesofthelinewithDSPtechnologyistomaketheteststability,anti-interferenceability;⑸measurementiscompleted,theautomaticcalculationandload-relatedparameters,tofacilitatecustomeranalysisandtesting.⑹usinglarge-screenLCDdisplayinEnglish,alloperati***bytheChineseandEnglishmenuprompts;datawithpower-downstorageandbrowsingcapabilities,cansenddatawiththecomputeron-line.⑺7.2V11Ahlithiumbatterywithhigh-capacitypowersupply,thetestcircuitdoesnoth***eanyeffect,to***oidthesystemappearstoprotectthesituation.Whileinthefieldwithoutpowersupplyinthecaseofuse.⑻secondloadtest,usingclamp-typeammetersamplingcurrent,donotdisconnectthesecondarycircuit.Canachievenon-blackouton-linemeasurement.Automaticswitchingrange:themeasurementprocesscanbedifferentaccordingtothetestobjecttoswitchtoadifferentlocation,sothatmeasurementaccuracyanddisplaydigitsareguaranteed.⑼workinghourscanbeupto24hours(thelongest).⑽withalightweightchargertofacilitatemeasurement,inthecaseofbatterypowercanbeanexternalchargermeasurements.⑾equipment,***allsize,lightweight.⑿widesecondaryoperatingcurrent/voltagerange.Inthe50mAoperatingcurrent,candistinguish1mΩresistanceandreactance,cantestthesecondaryratedcurrentof5AS-classcurrenttransformeron-lineactualload;5Voperatingvoltage,candistinguishbetween0.001mSconductanceandsusceptance.⒀canstore480setsofmeasurementdata,powercanbemaintainedfortenyears.⒁ChineseandEnglishinterfacelargescreendisplay,withRS-232communicationinterface.MainSpecificati***1.Environmentalconditi***1).Temperature:-5C~40C2).Relativehumidity:<95%(25C)3).Altitude:<2500m4).Externalinterference:nospecialstrongvibration,nospecialstrongelectromagneticfield2.Secondarypressuredroptestequipment,themaintechnicalindicators1)Measuringrange:difference:0.001%to19.99%Angledifference:0.01'to599'2)Resolution:Difference:0.001%Angledifference:0.01'3)Basicerroroftheinstrument-X=(1%X+1%Y2wo***);-Y=(1%X+1%Y2wo***).2wo***-quantizationerroroftheinstrument4).Voltagemeteraccuracy:0.5%ScopeofWork-Voltage:(50to120)V6).Instrumentindicatestheactionvalue(prompterror)-Error:thedifferenceisgreaterthan20%orthedifferenceisgreaterthan600'.-Voltage:Voltage<2.0V.3.PTsecondaryloadtestequipment,themaintechnicalindicators1).PTsecondaryloadtest-Admittancemeasurementrange:0.1ms-50.0ms-AdmittanceMeasurementAccuracy:-Secondaryvoltage(50V-120V)X=(1%X+1%Y2wo***)Y=(1%X+1%Y2wo***)2wo***-quantizationerroroftheinstrumentNote:Whenthemeasuredvalueislessthan0.2mS,thetestvoltageshouldbekeptabove50V,andpayattentiontothecentripetalwireoftheclamp.Atthispointtheinstrumentquantizationerrorof5wo***2).Voltagemeterhead:0.5%4.CTsecondaryloadtestequipment,themaintechnicalindicators-Impedancemeasurementrange:0.1Ω-50.0Ω-Impedancemeasurementaccuracy:X=(1%X+1%Y2wo***)Y=(1%X+1%Y2wo***)2wo***-quantizationerroroftheinstrumentCurrentmeterhead:1%)
南澳电气(武汉)有限公司
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