KMSB-30型高壓電容電橋KMSB30typeHVcapacitancebridge1 1簡(jiǎn)介:本說明書是KMSB30型高壓電容電橋的安裝和使用說明書。(包括KMSB30-3型量程擴(kuò)展器及TPlP-A型打印機(jī))。ThismanualisforinstallationandoperationofKMSB30typeHVcapacitancebridge.(includingKMSB30-3measurerangeexpanderandTPlP-Atypeprinter)KMSB30型高壓電容電橋是基本儀器。主電橋主要采用電流比較儀的原理并結(jié)合計(jì)算機(jī)數(shù)據(jù)處理,具有操作方便可靠,測(cè)量精度高、讀數(shù)位數(shù)多、線性度好,不受環(huán)境溫濕度影響,儀器內(nèi)部的計(jì)算機(jī)能自動(dòng)對(duì)測(cè)試數(shù)據(jù)進(jìn)行處理,直接在面板上顯示電容值及介損tg 和測(cè)試電壓及流經(jīng)標(biāo)準(zhǔn)電容的電流(Icn),并可通過打印機(jī)將測(cè)試結(jié)果打印出來等優(yōu)點(diǎn),是目前國內(nèi)精度較高、穩(wěn)定性好、操作方便、用途廣泛的高壓電橋。30系列的電橋根據(jù)其所帶的尾字母的不同,各自所持有的功能也有不同。如:30b型電橋,主要用于測(cè)量材料;30c型電橋可以擴(kuò)展測(cè)量高壓互感器等的高壓變比及角差;30d型電橋主要用于測(cè)量頻率在3~11次諧波下。30e型主要用與基準(zhǔn)測(cè)量。TheKMSB30typeHVcapacitancebridgemainlyadoptdcurrentcomparisiondeviceandcomputerdataanalysis.Itfeatureswitheasyoperation,precisemeasure,goodlineraity,andisnotaffectedbytemperatureorhumidity.Theinnercomputerdealwithdataautomaticallyanddisplaycapacitancevalue,tg value,testvoltage,andcurrentthroughcapacitor(Icn)onthepanel.Thedatacanbeprintedout.TheequipmentisuptonowHVbridgewhichisprecise,stable,convenientandcommonlyusedinChina.30seriesbridgehasdifferentfunctionsduetodifferentmodelswhichhasdifferentendletter.Forinstance,30bbridgeismainlyformaterialmeasure,30ccanmeasureHVratioandangledifferenceofHVmutualinductor.30dmeasuresfrequencyundersecondaryresonancewaveof3-11.30eismainlyforbasicstandardmeasure.1 2性能:FeaturesKMSB-30型高壓電橋?yàn)閷?shí)驗(yàn)室精密型高壓電橋。主要采用電流比較儀的原理,使它在測(cè)量上具有較高的比率精度和穩(wěn)定性,這是一般西林電橋不能達(dá)到的。再加上計(jì)算機(jī)數(shù)據(jù)處理,使測(cè)量更加直觀。本電橋可與各類高壓標(biāo)準(zhǔn)電容器配合組成高壓電容電橋,適宜于在高電壓下測(cè)量電力電纜、高壓套管、電力電容器、互感器等高壓電力設(shè)備的電容量及損失角正切值tg ,以及各種固體或液體絕緣材料的介電常數(shù)( )及損失角正切值,也可測(cè)量高壓變壓器或電壓互感器的比差及角差。電橋可外接電流互感器以擴(kuò)大量程,測(cè)量大電容本電橋?yàn)樗亩藴y(cè)量具有引線補(bǔ)償裝置,使測(cè)量精度提高,消除接線電阻引起的附加誤差。本電橋還可測(cè)量電抗器的電感量及Q值。KMSB30-3型量程擴(kuò)展器(供選購)能使主橋體的電容比從1000∶1擴(kuò)大到106∶1。TheKMSB30typeHVcapacitancebridgeispreciseHVbridgeforlaboratory.Itmainlyadoptscurrentcomparisiondevicetheoryandhascomparativelyhighratioprecisionandstability,whichisnoteasytoachievefornormalbridge.Andwithcomputerassistance,themeasureismoredirect.ThebridgecanbematchedwithallkindsofHVstandardcapacitortoformHVcapacitancebridge.Anditissuitabelforcapacitanceanddissipationtg measureofpowercable,HVbushing,powercapacitorandmutualinductor.ItisalsoforratioandangledifferencemeasureforHVtransformerorvoltagemutualinductor.Thebridgecanbeconnectedwithcurrentmutualinductortoexpanditsmeasurerangeforhighcapacitance.Thebridgeisfourendmeasurewithconductcompensationdevicetoimproveprecision,reduceadditionalerrorcausedbyresistanceconnection.ThebridgecanalsotestinductanceandQvalueforreactor.KMSB30-3typemeasurerangeexpander(optional)canenlargethemainbridgecapacitancerationto106∶1from1000∶11 3結(jié)構(gòu):本電橋放在一個(gè)金屬箱體內(nèi),指零儀安放在適宜人眼觀察的水平位置。靈敏度調(diào)節(jié)開關(guān)在表頭的旁邊,橋體安放在指零儀下面,電容比值和介質(zhì)損耗正切值讀數(shù)調(diào)節(jié)開關(guān)固定在面板上。在主橋體與指零儀的之間,是被測(cè)試品的電容量及介損、測(cè)試電壓的顯示窗,在其旁邊是標(biāo)準(zhǔn)電容量的預(yù)置盤。電橋本體的環(huán)形電流比較儀裝在一個(gè)磁屏蔽盒內(nèi),它的鐵芯采用超高導(dǎo)磁材料卷繞成環(huán)形,為內(nèi)外磁場(chǎng)有較好的抗干擾性能,具有很高精度的比差及角差。主運(yùn)算放大器和引線補(bǔ)償放大器及微機(jī)處理器都在箱體內(nèi)部一個(gè)金屬屏蔽盒內(nèi),電橋工作電源采用了開關(guān)電源,具有很寬的工作范圍,也安裝在一個(gè)金屬屏蔽盒內(nèi)。連接標(biāo)準(zhǔn)電容器與被測(cè)試品的插座在儀器背部,接地端鈕前后共有兩處,外接線采用屏蔽電纜,電橋裝置箱體作為靜電屏蔽以免干擾。1-3structureThebridgeispositionedinametalcontainer.Thezeropointerisputathorizontallevelsuitbleforhumaneyewatch.Thesensitivityregulationswitchisbesidethemeterhead.Thebridgeisunderzeropointer.Andonthepanelisthereadingregulationswitchforcapacitanceratioanddielectricdissipatintgvalue.Betweenthemainbridgeandzeropointer,thereisthedisplaywindowforcapacitance,dissipationandtestvoltageoftestedcapacitance.Besideitisthepresetdialforstandardcapacitance.Inamagneticshieldingboxistheringshapedcurrentcomparisiondevicewhoseironcoreismadeofextra-magneticconductivematerial.Thismaterialisshapedintoaringandwellresisttheinnerandoutermagneticfield.Itfeatureswithhighpreciseratioandangledifference.Themaincalculater,conductcompensativeamplifierandcomputerareallputinsideametalshieldingbox.Thebridgeworkingpoweradoptsonandofftypeandalsoputinsideametalshieldingbox.Thesockettoconnectthestandardcapacitorandtestedobjectisatthebackofthedevice.Therearetwogroundingbuttonsatfrontandback.Theconnectionlineshallbeshieldingcable.Thebridgecabinetisforshieldingthedisturbance.1 4主要技術(shù)指標(biāo):z電橋電容比Cx/Cs(當(dāng)額定比率為1:1時(shí))為0到1.111110,步級(jí)0.000001,倍率(K)變化范圍為1000、500、200、100、50、20、10、5、2、1共十檔,電容的測(cè)量范圍決于標(biāo)準(zhǔn)電容器Cs的大小電容值,即Cx=Cs K (Cx/Cs)Whentheratedratiois1:1,theCx/Csisfrom0to1.111110,thestepnessis0.000001,andmultiplyingfactorKrangesare1000、500、200、100、50、20、10、5、2、1,10levelsintotal.ThecapacitancemeasurerangedependsonCsofstandardcapacitor:Cx=Cs K (Cx/Cs)z電容比率值的測(cè)量準(zhǔn)確度:電容比率讀數(shù)第一只盤為滿度時(shí)應(yīng)不大于當(dāng)tg <3 10-3為 0.00005tg 3 10-3為 0.00005 0.005 tg x。Measureprecisionofcapacitanceratio:Whenthefirstdialcapacitanceratioreadingisfull,thevalueshallnotbeabove:tg <3 10-3 0.00005tg 3 10-3 0.00005 0.005 tg x.z電橋tg 范圍為-0.111110到+0.111110,步級(jí)為0.000001。Thetg rangeofthebridgeis-0.111110to+0.111110,withstepnessof0.000001.ztg x測(cè)量準(zhǔn)確度不大于 0.5%tg x 5 10-5Themeasureprecisionoftg xisnotabove 0.5%tg x 5 10-5z被測(cè)電容量顯示:Cx=(0.1~1111.1110)Cn顯示為被測(cè)電容量的前6位有效數(shù)字。Thetestedcapacitancedisplay:Cx=(0.1~1111.1110)CnThedisplayisfirstsixeffectivedigitsoftestedcapacitance.z被測(cè)電容介損顯示:tg =-1.11 10-1到1.11 10-1顯示為被測(cè)電容介損的前3位有效數(shù)字并結(jié)合科學(xué)記數(shù)法。Thetestedcapacitancedissipationdisplay:tg =-1.11 10-1to1.11 10-1Thedisplayisthefirst3effectivedigitswithscientificdigitmethod.z電容量及介損顯示精度:電容量: 0.5% tg x 0.00005。介損: 0.5%tg x 5 10-5Thecapacitanceanddissipationdisplayprecision:capacitance: 0.5% tg x 0.00005.dielectricdissipation: 0.5%tg x 5 10-5z電橋最大工作電流:電橋標(biāo)準(zhǔn)臂最大允許電流為15mA。通過被測(cè)臂最大電流與倍率位置有關(guān),見表1。Maximumworkingcurrentofthebridge:themaximumallowedcurrentofthebridgestandardarmis15mA.Thevalueisrelatedwithmultiplyingfactor.Pleaserefertoform1表1form1倍率Kmultiplyingfactor最大允許電流maximumallowedcurrent115mA230mA575mA10150mA20300mA50750mA1001.5A2002A5002A10002A注意:被測(cè)最大不得超過2A,如測(cè)試需要?jiǎng)t需外接電流互感器。Note:thetestedcurrentshallnotbeabove2A.Ifitisabove2A,currentmutualinductoristobeconnected.z分辨率:當(dāng)通過標(biāo)準(zhǔn)電容器的電流為0.1mA時(shí),且電容比率讀數(shù)第一只盤為滿度時(shí),在電橋完全平衡時(shí),其電容比及介損盤的分辨率均為5 10-5。Resolution:whenthecurrentthroughstandardcapacitoris0.1mA,andthecapacitanceratioreadingoffirstdialisfull,andthebridgeistotallybalanced,thecapacitanceratioandthedielectricdisspationdialresolutionareboth5 10-5.z標(biāo)準(zhǔn)電容量預(yù)置范圍:0000.00到1999.99pFStandardcapacitancepresetrange:0000.00to9999.99pFz電橋內(nèi)有過電壓保護(hù)措施,氖泡起輝電壓不超過交流30伏。Thereisvoltageprotectionmesureinsidethebridge.NeonglowstartingvoltageisnotaboveAC30V.z試驗(yàn)電壓顯示:范圍0到499.9kV分辨率為0.1kV準(zhǔn)確度 5%tg x 5 10-3Testvoltagedisplay:0-499.9kVResolution:0.1kVPrecision: 2%tg x 0.2kVz電橋內(nèi)附指零儀,其主要技術(shù)特性如下:1.電壓靈敏度2lV/格。2.輸入阻抗80k 。3.三次諧波抑制-60dB。注:以上的所有技術(shù)指標(biāo)都是在基本測(cè)試頻率50 0.2Hz下的。Thereiszeropointerinthebridgewithitsfeatures:Voltagesensitivity:2lV/scaleInputimpedance:80k Thirdresonancewaveresistance:-60dBNotice:alltheabovetechnicalstandardsareunderconditionoffrequency50 0.2Hz.z電源電壓為220V允差10%,頻率為50 2Hz消耗功率約40W。電壓頻率為50 0.2HzWhenthepowersupplyvoltageis220V 10%,thefrequencyis50 2Hz,thepowerisaround40W.Voltagefrequencyis50 0.2Hzz外形尺寸:560(寬) 410(深) 390(高)毫米。Outerdimension:560(W)*410(depth)*390(H)mmz重量:約35公斤。Weight:around35kGzKMSB30-3型量程擴(kuò)展器(外接,供選購)主要技術(shù)指標(biāo):MaintechnicalstandardsforKMSB-30-3typemeasurerangeexpander(optional)a.次級(jí)1000匝、初級(jí)100匝、輔助1000匝,具有供串繞線匝的窗口。a.secondery1000turns,primary100turns,assitant1000turns,withplaceforcoilwindingb.比值和最大電流的額定值:(當(dāng)電橋量范在1000:1時(shí)):10:110安量程擴(kuò)大器上可以使用100:1100安串繞10箍1000:11000安串繞1箍(用串繞箍數(shù),可得中間比值。)b.ratioandratedmaximumcurrent:whenbridgemeasureisat1000:1:10:110Ausedatrangeexpander100:1100Awinding10hoops1000:11000Awinding1hoop(ratiocanbecalculatedwithwindinghoopnumber)c.精度:(當(dāng)電橋量范在1000:1時(shí)) 10-5c.precision: 10-5(whenthebridgemeasureis1000:1)KMSB-30型高壓電容電橋KMSB30typeHVcapacitancebridge1 1簡(jiǎn)介:本說明書是KMSB30型高壓電容電橋的安裝和使用說明書。(包括KMSB30-3型量程擴(kuò)展器及TPlP-A型打印機(jī))。ThismanualisforinstallationandoperationofKMSB30typeHVcapacitancebridge.(includingKMSB30-3measurerangeexpanderandTPlP-Atypeprinter)KMSB30型高壓電容電橋是基本儀器。主電橋主要采用電流比較儀的原理并結(jié)合計(jì)算機(jī)數(shù)據(jù)處理,具有操作方便可靠,測(cè)量精度高、讀數(shù)位數(shù)多、線性度好,不受環(huán)境溫濕度影響,儀器內(nèi)部的計(jì)算機(jī)能自動(dòng)對(duì)測(cè)試數(shù)據(jù)進(jìn)行處理,直接在面板上顯示電容值及介損tg 和測(cè)試電壓及流經(jīng)標(biāo)準(zhǔn)電容的電流(Icn),并可通過打印機(jī)將測(cè)試結(jié)果打印出來等優(yōu)點(diǎn),是目前國內(nèi)精度較高、穩(wěn)定性好、操作方便、用途廣泛的高壓電橋。30系列的電橋根據(jù)其所帶的尾字母的不同,各自所持有的功能也有不同。如:30b型電橋,主要用于測(cè)量材料;30c型電橋可以擴(kuò)展測(cè)量高壓互感器等的高壓變比及角差;30d型電橋主要用于測(cè)量頻率在3~11次諧波下。30e型主要用與基準(zhǔn)測(cè)量。TheKMSB30typeHVcapacitancebridgemainlyadoptdcurrentcomparisiondeviceandcomputerdataanalysis.Itfeatureswitheasyoperation,precisemeasure,goodlineraity,andisnotaffectedbytemperatureorhumidity.Theinnercomputerdealwithdataautomaticallyanddisplaycapacitancevalue,tg value,testvoltage,andcurrentthroughcapacitor(Icn)onthepanel.Thedatacanbeprintedout.TheequipmentisuptonowHVbridgewhichisprecise,stable,convenientandcommonlyusedinChina.30seriesbridgehasdifferentfunctionsduetodifferentmodelswhichhasdifferentendletter.Forinstance,30bbridgeismainlyformaterialmeasure,30ccanmeasureHVratioandangledifferenceofHVmutualinductor.30dmeasuresfrequencyundersecondaryresonancewaveof3-11.30eismainlyforbasicstandardmeasure.1 2性能:FeaturesKMSB-30型高壓電橋?yàn)閷?shí)驗(yàn)室精密型高壓電橋。主要采用電流比較儀的原理,使它在測(cè)量上具有較高的比率精度和穩(wěn)定性,這是一般西林電橋不能達(dá)到的。再加上計(jì)算機(jī)數(shù)據(jù)處理,使測(cè)量更加直觀。本電橋可與各類高壓標(biāo)準(zhǔn)電容器配合組成高壓電容電橋,適宜于在高電壓下測(cè)量電力電纜、高壓套管、電力電容器、互感器等高壓電力設(shè)備的電容量及損失角正切值tg ,以及各種固體或液體絕緣材料的介電常數(shù)( )及損失角正切值,也可測(cè)量高壓變壓器或電壓互感器的比差及角差。電橋可外接電流互感器以擴(kuò)大量程,測(cè)量大電容本電橋?yàn)樗亩藴y(cè)量具有引線補(bǔ)償裝置,使測(cè)量精度提高,消除接線電阻引起的附加誤差。本電橋還可測(cè)量電抗器的電感量及Q值。KMSB30-3型量程擴(kuò)展器(供選購)能使主橋體的電容比從1000∶1擴(kuò)大到106∶1。TheKMSB30typeHVcapacitancebridgeispreciseHVbridgeforlaboratory.Itmainlyadoptscurrentcomparisiondevicetheoryandhascomparativelyhighratioprecisionandstability,whichisnoteasytoachievefornormalbridge.Andwithcomputerassistance,themeasureismoredirect.ThebridgecanbematchedwithallkindsofHVstandardcapacitortoformHVcapacitancebridge.Anditissuitabelforcapacitanceanddissipationtg measureofpowercable,HVbushing,powercapacitorandmutualinductor.ItisalsoforratioandangledifferencemeasureforHVtransformerorvoltagemutualinductor.Thebridgecanbeconnectedwithcurrentmutualinductortoexpanditsmeasurerangeforhighcapacitance.Thebridgeisfourendmeasurewithconductcompensationdevicetoimproveprecision,reduceadditionalerrorcausedbyresistanceconnection.ThebridgecanalsotestinductanceandQvalueforreactor.KMSB30-3typemeasurerangeexpander(optional)canenlargethemainbridgecapacitancerationto106∶1from1000∶11 3結(jié)構(gòu):本電橋放在一個(gè)金屬箱體內(nèi),指零儀安放在適宜人眼觀察的水平位置。靈敏度調(diào)節(jié)開關(guān)在表頭的旁邊,橋體安放在指零儀下面,電容比值和介質(zhì)損耗正切值讀數(shù)調(diào)節(jié)開關(guān)固定在面板上。在主橋體與指零儀的之間,是被測(cè)試品的電容量及介損、測(cè)試電壓的顯示窗,在其旁邊是標(biāo)準(zhǔn)電容量的預(yù)置盤。電橋本體的環(huán)形電流比較儀裝在一個(gè)磁屏蔽盒內(nèi),它的鐵芯采用超高導(dǎo)磁材料卷繞成環(huán)形,為內(nèi)外磁場(chǎng)有較好的抗干擾性能,具有很高精度的比差及角差。主運(yùn)算放大器和引線補(bǔ)償放大器及微機(jī)處理器都在箱體內(nèi)部一個(gè)金屬屏蔽盒內(nèi),電橋工作電源采用了開關(guān)電源,具有很寬的工作范圍,也安裝在一個(gè)金屬屏蔽盒內(nèi)。連接標(biāo)準(zhǔn)電容器與被測(cè)試品的插座在儀器背部,接地端鈕前后共有兩處,外接線采用屏蔽電纜,電橋裝置箱體作為靜電屏蔽以免干擾。1-3structureThebridgeispositionedinametalcontainer.Thezeropointerisputathorizontallevelsuitbleforhumaneyewatch.Thesensitivityregulationswitchisbesidethemeterhead.Thebridgeisunderzeropointer.Andonthepanelisthereadingregulationswitchforcapacitanceratioanddielectricdissipatintgvalue.Betweenthemainbridgeandzeropointer,thereisthedisplaywindowforcapacitance,dissipationandtestvoltageoftestedcapacitance.Besideitisthepresetdialforstandardcapacitance.Inamagneticshieldingboxistheringshapedcurrentcomparisiondevicewhoseironcoreismadeofextra-magneticconductivematerial.Thismaterialisshapedintoaringandwellresisttheinnerandoutermagneticfield.Itfeatureswithhighpreciseratioandangledifference.Themaincalculater,conductcompensativeamplifierandcomputerareallputinsideametalshieldingbox.Thebridgeworkingpoweradoptsonandofftypeandalsoputinsideametalshieldingbox.Thesockettoconnectthestandardcapacitorandtestedobjectisatthebackofthedevice.Therearetwogroundingbuttonsatfrontandback.Theconnectionlineshallbeshieldingcable.Thebridgecabinetisforshieldingthedisturbance.1 4主要技術(shù)指標(biāo):z電橋電容比Cx/Cs(當(dāng)額定比率為1:1時(shí))為0到1.111110,步級(jí)0.000001,倍率(K)變化范圍為1000、500、200、100、50、20、10、5、2、1共十檔,電容的測(cè)量范圍決于標(biāo)準(zhǔn)電容器Cs的大小電容值,即Cx=Cs K (Cx/Cs)Whentheratedratiois1:1,theCx/Csisfrom0to1.111110,thestepnessis0.000001,andmultiplyingfactorKrangesare1000、500、200、100、50、20、10、5、2、1,10levelsintotal.ThecapacitancemeasurerangedependsonCsofstandardcapacitor:Cx=Cs K (Cx/Cs)z電容比率值的測(cè)量準(zhǔn)確度:電容比率讀數(shù)第一只盤為滿度時(shí)應(yīng)不大于當(dāng)tg <3 10-3為 0.00005tg 3 10-3為 0.00005 0.005 tg x。Measureprecisionofcapacitanceratio:Whenthefirstdialcapacitanceratioreadingisfull,thevalueshallnotbeabove:tg <3 10-3 0.00005tg 3 10-3 0.00005 0.005 tg x.z電橋tg 范圍為-0.111110到+0.111110,步級(jí)為0.000001。Thetg rangeofthebridgeis-0.111110to+0.111110,withstepnessof0.000001.ztg x測(cè)量準(zhǔn)確度不大于 0.5%tg x 5 10-5Themeasureprecisionoftg xisnotabove 0.5%tg x 5 10-5z被測(cè)電容量顯示:Cx=(0.1~1111.1110)Cn顯示為被測(cè)電容量的前6位有效數(shù)字。Thetestedcapacitancedisplay:Cx=(0.1~1111.1110)CnThedisplayisfirstsixeffectivedigitsoftestedcapacitance.z被測(cè)電容介損顯示:tg =-1.11 10-1到1.11 10-1顯示為被測(cè)電容介損的前3位有效數(shù)字并結(jié)合科學(xué)記數(shù)法。Thetestedcapacitancedissipationdisplay:tg =-1.11 10-1to1.11 10-1Thedisplayisthefirst3effectivedigitswithscientificdigitmethod.z電容量及介損顯示精度:電容量: 0.5% tg x 0.00005。介損: 0.5%tg x 5 10-5Thecapacitanceanddissipationdisplayprecision:capacitance: 0.5% tg x 0.00005.dielectricdissipation: 0.5%tg x 5 10-5z電橋最大工作電流:電橋標(biāo)準(zhǔn)臂最大允許電流為15mA。通過被測(cè)臂最大電流與倍率位置有關(guān),見表1。Maximumworkingcurrentofthebridge:themaximumallowedcurrentofthebridgestandardarmis15mA.Thevalueisrelatedwithmultiplyingfactor.Pleaserefertoform1表1form1倍率Kmultiplyingfactor最大允許電流maximumallowedcurrent115mA230mA575mA10150mA20300mA50750mA1001.5A2002A5002A10002A注意:被測(cè)最大不得超過2A,如測(cè)試需要?jiǎng)t需外接電流互感器。Note:thetestedcurrentshallnotbeabove2A.Ifitisabove2A,currentmutualinductoristobeconnected.z分辨率:當(dāng)通過標(biāo)準(zhǔn)電容器的電流為0.1mA時(shí),且電容比率讀數(shù)第一只盤為滿度時(shí),在電橋完全平衡時(shí),其電容比及介損盤的分辨率均為5 10-5。Resolution:whenthecurrentthroughstandardcapacitoris0.1mA,andthecapacitanceratioreadingoffirstdialisfull,andthebridgeistotallybalanced,thecapacitanceratioandthedielectricdisspationdialresolutionareboth5 10-5.z標(biāo)準(zhǔn)電容量預(yù)置范圍:0000.00到1999.99pFStandardcapacitancepresetrange:0000.00to9999.99pFz電橋內(nèi)有過電壓保護(hù)措施,氖泡起輝電壓不超過交流30伏。Thereisvoltageprotectionmesureinsidethebridge.NeonglowstartingvoltageisnotaboveAC30V.z試驗(yàn)電壓顯示:范圍0到499.9kV分辨率為0.1kV準(zhǔn)確度 5%tg x 5 10-3Testvoltagedisplay:0-499.9kVResolution:0.1kVPrecision: 2%tg x 0.2kVz電橋內(nèi)附指零儀,其主要技術(shù)特性如下:1.電壓靈敏度2lV/格。2.輸入阻抗80k 。3.三次諧波抑制-60dB。注:以上的所有技術(shù)指標(biāo)都是在基本測(cè)試頻率50 0.2Hz下的。Thereiszeropointerinthebridgewithitsfeatures:Voltagesensitivity:2lV/scaleInputimpedance:80k Thirdresonancewaveresistance:-60dBNotice:alltheabovetechnicalstandardsareunderconditionoffrequency50 0.2Hz.z電源電壓為220V允差10%,頻率為50 2Hz消耗功率約40W。電壓頻率為50 0.2HzWhenthepowersupplyvoltageis220V 10%,thefrequencyis50 2Hz,thepowerisaround40W.Voltagefrequencyis50 0.2Hzz外形尺寸:560(寬) 410(深) 390(高)毫米。Outerdimension:560(W)*410(depth)*390(H)mmz重量:約35公斤。Weight:around35kGzKMSB30-3型量程擴(kuò)展器(外接,供選購)主要技術(shù)指標(biāo):MaintechnicalstandardsforKMSB-30-3typemeasurerangeexpander(optional)a.次級(jí)1000匝、初級(jí)100匝、輔助1000匝,具有供串繞線匝的窗口。a.secondery1000turns,primary100turns,assitant1000turns,withplaceforcoilwindingb.比值和最大電流的額定值:(當(dāng)電橋量范在1000:1時(shí)):10:110安量程擴(kuò)大器上可以使用100:1100安串繞10箍1000:11000安串繞1箍(用串繞箍數(shù),可得中間比值。)b.ratioandratedmaximumcurrent:whenbridgemeasureisat1000:1:10:110Ausedatrangeexpander100:1100Awinding10hoops1000:11000Awinding1hoop(ratiocanbecalculatedwithwindinghoopnumber)c.精度:(當(dāng)電橋量范在1000:1時(shí)) 10-5c.precision: 10-5(whenthebridgemeasureis1000:1)