NAXZSeriesAutomaticFrequencySeriesResonant南澳电气NAXZ全自动变频串联谐振高压试验装置产品简介南澳电气NAXZ全自动变频串联谐振高压试验装置，主要针对10kV、35kV、110kV、220kV、变电站及线路等所有电气主设备的交流耐压试验设计制造。电抗器采用多只分开设计，既可满足高电压、小电流的设备试验条件要求，又能满足低电压的交流耐压试验要求，具有较宽的适用范围，是地、市、县级高压试验部门及电力安装、修试工程单位理想的耐压设备。南澳电气NAXZ全自动变频串联谐振高压试验装置产品别名变频谐振、变频串联谐振、串联谐振、串联谐振变压器、串联谐振试验设备、便携式电缆耐压试验装置、串联谐振系统南澳电气NAXZ全自动变频串联谐振高压试验装置产品特性1、所需电源容量大大减小。串联谐振电源是利用谐振电抗器和被试品电容谐振产生高电压和大电流的，在整个系统中，电源只需要提供系统中有功消耗的部分，因此，试验所需的电源功率只有试验容量的1/Q。2、设备的重量和体积大大减少。串联谐振电源中，不但省去了笨重的大功率调压仪器和普通的大功率工频试验变压器，而且谐振激磁电源只需试验容量的1/Q，使得系统重量和体积大大减少，一般为普通试验仪器的1/10-1/30。3、改善输出电压的波形。谐振电源是谐振式滤波电路，能改善输出电压的波形畸变，获得很好的正弦波形，有效的防止了谐波峰值对试品的误击穿。4、防止大的短路电流***故障点。在串联谐振状态，当试品的绝缘弱点被击穿时，电路立即脱谐，回路电流迅速下降为正常试验电流的1/Q。而并联谐振或者试验变压器方式做耐压试验时，击穿电流立即上升几十倍，两者相比，短路电流与击穿电流相差数百倍。所以，串联谐振能有效的找到绝缘弱点，又不存在大的短路电流***故障点的忧患。5、不会出现任何***过电压。试品发生击穿时，因失去谐振条件，高电压也立即消失，电弧即刻熄灭，且***电压的再建立过程很长，很容易在再次达到闪络电压前断开电源，这种电压的***过程是一种能量积累的间歇振荡过程，其过程长，且不会出现任何***过电压。南澳电气NAXZ全自动变频串联谐振高压试验装置产品参数1.变频电源(一台)：1.1技术参数1.1.1额定功率：5.5-500kW；1.1.2输入电压：三相380V&plu***n;5%或单相220V&plu***n;5%45～65Hz，当电源为380V时，可做额定负载试验；当电源为220V时，只可做1/2负载试验。1.1.3输出电压：0～400V可调1.1.4输出电压频率：20～300Hz1.1.5频率调节:0.1Hz步进可调1.1.6频率不稳定度:≤0.02%1.1.7输出电流：13～1250A2.高压电抗器2.1技术参数2.1.1额定工作电压：0～1000kV2.1.2额定工作电流：1～10A2.1.3额定电感量：30～600H2.1.4连续工作时间：15min2.1.5温升：小于60℃2.1.6工作频率：20~300Hz3.激励变压器(一台)：3.1技术参数3.1.1额定容量：3.5～500kVA3.1.2输入电压：当容量在5.5～20kW输入是200V/400V当容量在20～500kW输入是400V4.电容分压器(一台)：4.1技术参数4.1.1自身电容量：300～5000pF4.1.4额定电压:10～1000kV4.1.2工作频率：20～300Hz4.1.3不确定度：1.0%ProductintroductionNAXZseriesfrequencyseriesresonantismainlydesignedfor10kV,35kV,110kV,220kV,substati***andloopandallelectricalmainACvoltagetestequipmentdesignandmanufacturing.Reactorusesmorethanjustseparatedesign,notonlycanmeetthehigh-voltage,low-currentdevicetestconditi***requirements,butalsocanmeetthelowvoltageACvoltagetestingrequirements.Ithasawidescope,istheground,city,countyhighvoltagetestdepartmentsandelectricalinstallation,repairandtestengineeringunitsidealforpressureequipment.AlsocallednameFrequencyresonant,frequencyseriesresonant,seriesresonance,seriesresonanttransformer,seriesresonanttestingdevice,portablecablewithstandstestingdevice,seriesresonantsystemTheCharacteristicsoftheproducts1,Reducethepowercapacitygreatly.Theseriesresonantpowersupplyutilizingtheresonantreactorandthesamplecapacitorresonantgeneratehighvoltageandhighcurrent.Inthewholesystem,thepowersystemonlyprovidethepartoftheactivec***umption,therefore,theneededpoweris1/Qofthetestingcapacity.2,Reducingtheweightandvolumegreatly.Intheseriesresonantpowersupply,notonlytoeliminatebulkypowerregulator,powerinstrumentsandothercommonfrequencytesttransformerandresonantexcitationpowersimplytestthecapacityof1/Q,makingthesystemsignificantlyreducestheweightandvolume,usuallycommontestinstrument1/10-1/30.3,Toimprovetheoutputvoltagew***eform.Resonantpowersupplyisaresonantfiltercircuit,canimprovetheoutputvoltagew***eformdistortion,getagoodsinew***e,effectivelypreventtheharmonicpeakerrorforthetestproductbreakdown.4,Topreventlargeshort-circuitcurrentfaultburns.Intheseries-resonantstate,whenthetestinsulationbreakdownweaknesses,thecircuitisimmediatelyofftheharmonic,theloopcurrentisrapidlydecreasedtonormaltestcurrentof1/Q.Theparallelresonanttransformertestorwayofdoingpressuretest,thebreakdowncurrentimmediatelyincreasedseveraltimes,bothcomparedtoshort-circuitcurrentandthebreakdowncurrentdifferencebetweenthenumberoftimes.Therefore,theseriesresonancecaneffectivelyfindinsulationweaknesses,withoutthepresenceoflargeshort-circuitcurrentsufferingburnsthepointoffailure.5,Therewillbenorecoveryovervoltage.Samplebreakdownoccurswhenthelossofresonanceconditi***,thehighvoltageisalsodisappearimmediately,instantlyextinguishthearc,andtherecoveryvoltagere-buildingprocessisverylong,itiseasytoreachflashovervoltageagainbeforedisconnectingthepower,thisvoltageisrestoredprocessisanintermittentoscillationenergyaccumulationprocess,theprocessislong.Theparametersoftheproducts1Variablefrequencypowersource(1piece):1.1TechnicalParameters1.1.1Ratedpower:5.5-500kW;1.1.2Inputvoltage:three-phase380V&plu***n;5%orsingle-phase220V&plu***n;5%45~65Hz,whenthepowersupplyis380V,cantesttheratedload;whenthepowersupplyis220V,onlycantest1/2load.1.1.3Outputvoltage:0~400Vadjustable1.1.4Outputvoltagefrequency:20~300Hz1.1.5Frequencyadjustment:0.1Hzstepadjustable1.1.6Frequencyinstability:≤0.02%1.1.7OutputCurrent:13~1250A2.HighVoltageReactor2.1TechnicalParameters2.1.1ratedvoltage:0-1000kV2.1.2Ratedcurrent:1-10A2.1.3Nominalinductance:30-600H2.1.4Continuousworkingtime:15min2.1.5Temperaturerise:lessthan60degrees2.1.6Operatingfrequency:20~300Hz3.Excitationtransformer(a):3.1Technicalparameters3.1.1RatedCapacity:3.5-500kVA3.1.2Inputvoltage:5.5-20kWcapacitywheninputis200V/400V,whenthecapacityisinthe20-500kW400Vinput4capacitivedivider(a):4.1TechnicalParameters4.1.1owncapacity:300-5000pF4.1.4Ratedvoltage:10-1000kV4.1.2Operatingfrequency:20~300Hz4.1.3Uncertainty:1.0%)