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目录一、用途和原理二、主要技术指标三、安装和使用四、注意事项用途和原理WTZK-系列型温度指示控制器,主要用于500KVA以上的变压器油温测量及控制,仪表具有良好的防护性能,在户外条件正常工作。WTZK-02型温度指示控制器装有二个可调节的控制开关,根据需要分别用于报警、控制等。WTZK-02型温度指示控制器具有最高温度指示装置,能记录曾经到达过的最高温度值。WTZK-02型温度指示控制器结构新颖,因此具有指示控制精度高,性能稳定可靠,灵敏度高,指示和控制同步,开关负载功率大,仪表外形薄,搞振性能好等特点。WTZK-02型温度指示控制器主要有感温包、毛细管和弹性元件三部分组成,在该三部分组成的密封系统内充感温介质,随着被测温度的变化、压力变化使弹性元件的自由端产生相对应的位移,并推动指示系统,控温开关达到测量油温和输出信号的目的。主要技术指标防护性能按GB4208—1993.在环境温度-40~+50ºC相对温度不大于90%的条件下,控制器能够联系正常工作。温度指示:1、精度1.5级2、时间常数15秒3、单向园型分度:0-100ºC非线性,0-120ºC非线性温度控制:1、设定可调范围:量程0-100ºC为20-90ºC,量程0-120ºC为30-100ºC2、标准设定值:K1=55ºCK2=80ºC3、开关动作误差:±3ºC开关切换差:6±2ºC4、开关参数:AC、250V、3A电寿命20×104次温包:1、Φ14×150mm2、安装螺纹M27×2。安装和使用内设定调整:旋开表面压圈上的螺钉(5-M3),打开表玻璃,旋转设定旋钮至所需的刻度上,请勿转动设定旋钮中间的螺钉。重新装上表玻璃及螺钉均匀拧紧。产品出厂时己校准K1设定温度为55ºC,K2设定温度为80ºC。仪表安装:仪表表头及温包应垂直安装,温包应尽量插入最大深度。毛细管布线时弯曲半径不应大于50mm,每相隔300mm要有相应的固定。安装尺寸见图一。接线:如图二所示,将电缆(Φ.11.5)穿过空心螺栓,像皮垫圈,打开接线盒盖(铭牌)进行接线,然后接入填料(生料带或石棉线)旋紧空心螺栓。接线工作应在干燥天气迅速进行,以防潮气进入仪表内部。最高指针调整:旋转表玻璃中的旋钮,将最高指示指针调到指示指针重叠的位置上。(注:最高指示针必须放在温度指示针之上)使用:使用前应查看产品出厂年月,若己超过二年期限应自行检定方可投入使用。下图:1将m6六角螺栓套入防震橡皮圈,然后旋入变压器地板上。2把温控器背面下方的安装槽插入防震橡皮圈槽内。3旋入温控器背面上方两颗m6螺栓,再用呆板手将全部螺栓拧紧。注意事项1、温控器检验时必须按照蒸汽和气体压力式温度计检定规程JB/T9295-1999进行.即温包必须全部浸入在恒温槽内,表头必须垂直安装.若在常温空气中,就不能严格按1.5级精密度来判断。2、温控器接线和安装过程中均应小心轻放,请严格按说明书要求进行。3、打开铭牌盖,按图二接线示意图接线,合盖时四点均匀对称拧紧,以免影响仪表密封性。4、安装时,多余毛细管应盘为直径150毫米能上能下环圆环。每隔300毫米应对护套毛细管做适当的固定(如用细铜丝扎结等)。5、现场安装时,必须注意温包应全部插入有油的套管内,温包进入有油的套管内深度至少不应小于150毫米。ContentI.PurposeandprincipleII.MaintechnicalindicatorsIII.InstallationandusageIV.NoticePurposeandprincipleWTZKseriesoftemperatureindicatorcontrollersaremainlyusedformeasurementandcontrolofoiltemperatureoftransformerswhosecapacityismorethan500KVAandinstrumentshaveexcellentprotectionperformancesothattheycanoperatenormallyunderoutdoorconditions.WTZK-02temperatureindicatorcontrollerhastwoadjustablecontrolswitchesforalarmandcontrolandsoonrespectivelyaccordingtodemand.WTZK-02temperatureindicatorcontrollerhasthemaximumtemperatureindicationdevicetorecordthepastmaximumtemperature.WTZK-02temperatureindicatorcontrollerhascharacteristicssuchasanovelstructure,highindicationcontrolprecision,stableandreliableperformance,highsensitivity,synchronousindicationandcontrol,largerswitchloadpower,thinshapeandexcellentvibrationresistanceandsoon.WTZK-02temperatureindicatorcontrollermainlyhasthermo-bulb,capillaryandelasticelementandthereistemperaturesensingmediuminthesealingsystemcomposedbythreepartssothatthereisacorrespondingdisplacementinfreeendofelasticelementduetovariationofsensedtemperatureandpressuretopushtheindicationsystemandtemperaturecontrolswitchformeasurementofoiltemperatureandsignaloutput.MaintechnicalindicatorsProtectionperformanceshallbeinaccordancewithregulationsofGB4208—1993.Controllercanoperatenormallywhentheambienttemperatureisbetween-40ºCand+50ºCandrelativetemperatureisnotmorethan90%.Temperatureindication:1.PrecisionisGrade1.5;2.Timeconstantislessthan15seconds;3.Unidirectionaldivision:Non-linearunidirectionaldivisionfor0-100ºCand0-120ºCTemperaturecontrol:1.Adjustablescope:Itisbetween0ºCand100ºCwhentherangeisbetween0ºCand100ºCanditisbetween30ºCand100ºCwhentherangeisbetween0ºCand120ºC.2.Standardvalue:K1=55ºCK2=80ºC3.Switchactionerror:±3ºCSwitchingdifference:6±2ºC4.Switchparameter:AC,250Vand3A;Electricaldurability:20×104timesThermometerbulb:1.Φ14×150mm;2.Installationscrew:M27×2.InstallationandusageInternalsettingadjustment:Turnonscrew(5-M3)ontheclampingringonthesurfaceandopenwatchglassandrotatesettingbuttontorequiredscale.Donotrotatescrewinthemiddleofsettingbuttonanditisrequiredtoinstallthewatchglassagainandscrewdownscrewsevenly.Settingtemperature(K1)hasbeencorrectedto55ºCandthat(K2)ofproductsis80ºCwhentheyleavethefactory.Instrumentinstallation:Installinstrumentheadandthermometerbulbverticallyandthermometerbulbshallbeinsertedtothegreatestextent.Bendingradiusofcapillaryshallnotexceed50mmwhenwiringandguaranteecorrespondingfixationforevery300mmandpleaserefertoFigure1forinstallationdimensions.Wiring:AsshowninFigure2,itisrequiredtothreadcables(ofΦ.11.5)intothehollowboltsandrubbergasketsandopenjunctionboxcover(namely,nameplate)forwiringthencaulk(byTeflontapeorasbestosyarn)andscrewdownthehollowbolts.Itisrequiredtowirequicklyunderdryweathersothatmoisturewillnotenterintotheinstrument.Adjustmentofthehighestpointer:Rotatebuttononthewatchglassandadjustthehighestpointertooverlappingpositionofpointers.(Note:Thehighestpointermustbehigherthantemperaturepointer.)Usage:Checkex-factorydateofproductsbeforeusageandproductswhichareduecannotbeputintoserviceuntilindividualinspection.Followingfigure:1.Placethehexagonbolts(ofm6)intotheshockproofrubberringthenscrewitontotheflooroftransformer.2.Inserttheinstallationslotbelowthebackoftemperaturecontrollerintotheslotofshockproofrubberring.3.Screwintwom6boltsonthebackoftemperaturecontrollerthanscrewdownallboltsbywrench.Notice1.InspectthetemperaturecontrollerinaccordanceofVerificationRegulationsofPressureThermometerofSteamandGas(JB/T9295-1999).Thatis,thermometerbulbmustbedippedintotheconstanttemperatureslotcompletelyandinstrumentheadmus
本文标题:WTZK-02型压力温度计
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