油流繼電器手冊

3Application 應(yīng)用TheURF25/10monitoringrelayisanalarmdeviceforoil-insulatedhigh-dutytappingswitchesoftransformerfromdamageasmightbecausedbyfailureofthetappingswitchsystemortheapplicationofexcessivecurrents(strongarc)duetoatransformerdefect.壓器本體故障引發(fā)短路電流〔大電弧〕時(shí)，可起到保護(hù)分接開關(guān)的作用。Onresponsethemonitoringrelaywillgenerateacontinuouspulseoperatingthecircuitbreakerofthetransformertobeprotectedanddisconnectingthelatterfromthesourceofsupply.Observingtheinstructionsoftheplantoperator,thetransformercanberestartedonlyafteroperationofthetestandresetbutton.損壞。依據(jù)生產(chǎn)商操作手冊的說明，僅當(dāng)操作油流繼電器上的試驗(yàn)和復(fù)位按鈕后，變壓器才能合閘連續(xù)運(yùn)行。Themonitoringrelayisavailablewithsingleanddouble-contactcircuitsystem.Onresponseofthebaffleplateduetoanincreasedoilflow,thedouble-contactcircuitprovidestwosignals,henceimprovingoperationalsafetyoftheequipment.油流繼電器可以供給單觸點(diǎn)和雙觸點(diǎn)兩種形式。當(dāng)油流繼電器內(nèi)動作擋板由于油流作用動作時(shí)，雙觸點(diǎn)電路可供給兩組獨(dú)立的信號，這樣可以進(jìn)一步提高設(shè)備的安全性。Construction構(gòu)造Themonitoringrelayconsistsofthefollowingsub-assemblies:油流繼電器由以下部件組成：Casingassembly 機(jī)殼Coverassembly 機(jī)蓋Switchmechanism信號機(jī)構(gòu)Casingassembly 機(jī)殼Thecasingconsistsofweatherprooflightmetalcasting.Tochecktheswitchsystemforproperfunction,thecasingisprovidedwithinspectionglassesarrangedoppositeeachother.Onrequest,theinspectionglassescanbeprovidedwithhingedlids.工作狀況。如需要的話，觀看窗處可另加可旋轉(zhuǎn)的保護(hù)蓋。Coverassembly 機(jī)蓋Thecoverconsistsofaweatherprooflightmetalcasting.Theconnectionbox,thetestandresetbuttonandatechnologicalbleederscrewarearrangedabovethecover.機(jī)蓋由防風(fēng)雨的輕金屬材料制成。上面安裝有接線盒，試驗(yàn)和復(fù)位按鈕和放油用的螺栓。Inadditiontotheearthconnection,theconnectionboxaccommodatestheelectricbushingsinthefloor.Theconnectionboxisclosedbyahingedcapsothatitisaccidental-shocksafeandnodirtgetinsidethebox.灰塵進(jìn)入內(nèi)部。TheconnectingcablecanbeinsertedoptionallythrougheitherPG16screwedconduit.Thetestandresetbuttoniscoveredbyacapnut.信號連接電纜可以從任一個(gè)PG16螺紋管內(nèi)接入。試驗(yàn)和復(fù)位按鈕上有一個(gè)螺帽保護(hù)。Switchmechanism信號機(jī)構(gòu)Theswitchmechanismconsistsofthefollowingmajorcomponents:信號機(jī)構(gòu)由以下部件構(gòu)成：Frameassupportelement支撐框架Functionalelement,switchsystem動作單元，開關(guān)系統(tǒng)Mechanicaltestingequipmentforfunctionaltesting測試動作狀況的機(jī)械試驗(yàn)裝置Theswitchingsystemconsistsofthefollowingcomponents:開關(guān)系統(tǒng)由以下部件構(gòu)成：Baffleplate擋板Switchingmagnet動作磁鐵Magneticswitch磁性開關(guān)Thebaffleplateisretainedinitsnormalandresponsepositionsbypermanentmagnets.Viaalink the switching magnet is firmly connected with the baffle plate and initiates thecontact-makingprocessofthemagneticswitchatacertainoilflow.擋板上。當(dāng)油流速度超過整定值后，動作磁鐵就會帶動磁性開關(guān)的觸點(diǎn)吸合。Modeofoperation 操作方式Iftheoilflowfromthetappingswitchtotheexpansiontankisexcessiveorinadmissible,themonitoringrelaywillbetripped.Theoilflowactsonthebaffleplateandwhentheresponsevaluesetisexceeded,theplatewillbeoperated.Then,theshutoffsignalwillbetripped.到動作位置，然后油流繼電器將發(fā)跳閘信號給主斷路器。Installation 安裝Theinstallationandoperatinginstructionssuppliedwiththemonitoringrelaydescribeindetailtheinstallationandelectricalconnectionofthemonitoringrelay.油流繼電器包裝內(nèi)有具體的安裝操作指南。有關(guān)于安裝和電氣連接請參考此指南。Technicaldata 技術(shù)數(shù)據(jù)Parameter參數(shù)Value/Specification/規(guī)格Notes說明Ratedvoltage額定電壓230VA.C.230VD.C.12Vto250V12Vto250VRatedcurrent額定電流2AA.C.0.05Ato2A2AD.C.0.05Ato2AInsulationvoltage 壓Capacity容量2023VA.C.Casingcontact短路Ambienttemperature-45°Cto+55°COthers available onParameter參數(shù)環(huán)境溫度Insulatingliquid絕緣油Type類型Temperature溫度Viscosity粘滯度

Value/Specification/規(guī)格Transformeroil變壓器油1mm2/secto1100mm2/sec

Notes說明request承接特別要求Others available request承接特別要求Others available request承接特別要求Others available request承接特別要求Responsevaluesofthe0.9m/secbaffleplate擋板整定值1.0m/sec1.2m/sec1.5m/sec

2.0m/sec2.5m/sec3.0m/sec4.0m/sec

Others available request承接特別要求Responsetimeofthebaffleplate擋板動作時(shí)間Nominal installationposition安裝位置Typeofprotection

<0.1sec2%risingtowardstheexpansiontank 2%to4%2%往油枕方向上翹Others available on保護(hù)等級

IP44

request承接特別要求Climaticsuitability適應(yīng)環(huán)境Types 型號

Suitableforwarmandhumidaswell Others available asextremelycoldopenairclimates request適用于各類炎熱、潮濕和嚴(yán)寒的戶外承接特別要求環(huán)境Themonitoringrelayismanufacturedthreebasictypeswithidenticalexternaldimensions.Thefollowingtypesareavailable:此油流繼電器有三種根本型號，尺寸完全一樣。分別為：URF25/10-1 Single-contactedcircuit單觸點(diǎn)(Contacts:1NOcontact,1NCcontactor1change-overcontact)〔觸點(diǎn)：1常開，1常閉，1，轉(zhuǎn)換觸點(diǎn)〕URF25/10-2 Double-contactcircuit雙觸點(diǎn)(Contacts:2NOcontacts,