Chikamu Dicharge Online Monitoring System yeJenareta
Kazhinji, kubuda kwechidimbu kunoitika panzvimbo iyo zvinhu zve dielectric zvinhu hazvisi yunifomu.Panzvimbo idzi, simba renzvimbo yemagetsi rinowedzerwa, uye simba renzvimbo yemagetsi rakakurisa, zvichikonzera kuparara kwenzvimbo.Uku kuparara kwechidimbu hakusi kuparara kwese kweiyo insulating chimiro.Kuyerera kwakati kunowanzoda imwe nzvimbo yegasi kuti igadzirike, senge gasi mavhodhi mukati mekuvhara, maconductor ari padyo, kana nzvimbo dzinodzivirira.
Kana simba renzvimbo yemunharaunda richipfuura simba re dielectric rezvinhu zvinodzivirira, kubuda kwechidimbu kunoitika, zvichiita kuti mapurusi akawanda aite chikamu panguva imwe chete yekushandisa magetsi.
Huwandu hwekuburitswa hunounzwa hwakabatana zvakanyanya neasina-uniform maitiro uye chaiwo dielectric zvimiro zvezvinhu.
Kubuda kwakakosha kwechikamu mumotokari kazhinji chiratidzo chekuremara kwekudzivirira, senge mhando yekugadzira kana kuderedzwa kwemashure, asi ichi hachisi chikonzero chakananga chekutadza.Nekudaro, zvinobuda zvishoma mumotokari zvinogona zvakare kukuvadza zvakananga insulation uye kukanganisa kuchembera.
Kuyera kwakasarudzika kwechikamu kuyerwa uye kuongororwa kunogona kunyatso shandiswa kudzora kwemhando yemhepo mitsva uye mhepo zvikamu pamwe nekutanga kuona kwekukanganisa kwekudzivirira kunokonzerwa nezvinhu zvakadai sekupisa, magetsi, kwezvakatipoteredza uye mechanical kushushikana mukushanda, izvo zvinogona kutungamira mukutadza kwekudzivirira.
Nekuda kwehunyanzvi hwekugadzira matekiniki, hurema hwekugadzira, kuchembera kwakajairika kana kuchembera zvisina kujairika, kuburitswa kwechikamu kunogona kukanganisa chimiro chekudzivirira chese stator winding.Dhizaini yemota, hunhu hwezvinhu zvinodzivirira, nzira dzekugadzira, uye mamiriro ekushanda anokanganisa zvakanyanya huwandu, nzvimbo, hunhu, uye maitiro ekusimudzira ekuburitswa kwechidimbu.Muzviitiko zvakawanda, kuburikidza nehunhu hwekubuda muchidimbu, mabviro akasiyana emunharaunda anogona kuzivikanwa uye kusiyaniswa.Kuburikidza nemaitiro ekusimudzira uye ane hukama ma paramita, kutonga sisitimu insulation mamiriro, uye nekupa yakare hwaro hwekugadzirisa.
Characterization parameter of partial discharge
1. Inooneka yekuburitsa charge q(pc).qa=Cb/(Cb+Cc), huwandu hwekubuditsa hunowanzo kuratidzwa neinodzokororwa inoonekwa yekuchaja qa.
Kusanganisira Cc is Defect yakaenzana capacitance
2. Chikamu chekuburitsa φ (madhigirii)
3. Discharge kudzokorora mwero
Software chikuva
PD muunganidzi
Chikamu chekuburitsa sensor 6pcs
Kudzora kabati (kuisa komputa yeindasitiri uye kutarisa, zano rinopihwa nemutengi)
1. Partial discharge signal sensor
Iyo HFCT partial discharge sensor ine magineti musimboti, Rogowski coil, yekusefa uye sampling unit, uye electromagnetic kudzivirira bhokisi.Iyo coil inokuvadzwa pane magineti musimboti ine yakakwirira magineti permeability pane yakakwirira frequency;Dhizaini yekusefa uye sampling unit inotarisisa zvinodiwa zvekuyerwa senitivity uye chiratidzo chekupindura frequency bhendi.Kuti udzivise kupindira, vandudza chiratidzo-ku-ruzha reshiyo, uye funga zvinodikanwa zvekusanaya kwemvura uye guruva, Rogowski coils uye mafirita sampling unit akaiswa musimbi inodzivirira bhokisi.Iyo nhovo kesi yakagadzirirwa ine yekuzvivharira bhandi iyo inogona kuvhurwa nekudzvanya kuti uwedzere kuve nechokwadi chekureruka kwekumisikidza sensor uye kuchengetedzeka panguva yekushanda.Iyo HFCT sensor inoshandiswa kuyera kuvharwa kwePD mune stator windings.
Iyo epoxy mica HV coupling capacitor ine huwandu hwe80 PF.Kuyera coupling capacitors kunofanirwa kuve nekugadzikana kwepamusoro uye kugadzikana kwekudzivirira, kunyanya pulse overvoltage.PD sensors uye mamwe ma sensor anogona kubatanidzwa kune PD inogamuchira.Iyo yakakura bandwidth HFCT inonzi zvakare "RFCT" yekudzvinyirira ruzha.Kazhinji, masensa aya akaiswa patambo yemagetsi yakadzika.
A sign conditioning module inovakwa muPD sensors.Iyo module inonyanya kukwidziridza, mafirita, uye inoona chiratidzo chakabatanidzwa kune sensor, kuitira kuti iyo yakakwira-frequency pulse chiratidzo inogona kuunganidzwa zvinobudirira neiyo data yekutora module.
Izvo zvakatemwa zveHFCT
| Frequency range | 0.3MHz ~ 200MHz |
| Kutamisa impedance | Input 1mA, Output ≥15mV |
| Kushanda tembiricha | -45 ℃ ~ +80 ℃ |
| Kuchengetedza tembiricha | -55 ℃ ~ +90 ℃ |
| Gomba dhayamita | φ54(yakagadzirirwa) |
| Output terminal | N-50 socket |
Amplitude-frequency maitiro eHFCT
2. PD online yekuona unit (PD muunganidzi)
Chikamu chekutsvaga chekubuda chikamu ndicho chinonyanya kukosha chegadziriro.Mabasa ayo anosanganisira kutora data, kuchengetedza uye kugadzirisa, uye kukwanisa kutyaira iyo optical fiber LAN kana kutumira data kuburikidza neWIFI uye 4G isina waya nzira dzekutaurirana.Chiratidzo chekuburitsa chikamu uye chiratidzo chekudzika chemazuva ano chezvikamu zvakawanda zvemajoini (kureva ABC-chikamu-nhatu) inogona kuiswa mukabati rekupedzisira pedyo nenzvimbo yekuyeresa kana mubhokisi rekunze rinozvitsigira.Pamusana pemamiriro ezvinhu akaoma, bhokisi risina mvura rinodiwa.Iyo yekunze casing yechishandiso chekuyedza inogadzirwa nesimbi isina tsvina, iyo yakanaka kudzivirira yakakwirira frequency uye simba frequency.Sezvo iri kunze kwekugadzika, inofanira kuiswa pakabati isingapindi mvura, chiyero chekudzivirira mvura iIP68, uye tembiricha yekushanda iri -45°C kusvika 75°C.
Chimiro chemukati che online inoona unit
Parameters uye mabasa epamhepo yekuona unit
Iyo inogona kuona ekutanga chikamu chekuburitsa ma paramita senge chiyero chekuburitsa, chikamu chekuburitsa, nhamba yekuburitsa, nezvimwe, uye inogona kupa huwandu hwemaparamita akakodzera zvinoenderana nezvinodiwa nevatengi.
Iyo sampling rate yechikamu chekuburitsa pulse chiratidzo haisi pasi pe100 MS/s.
Minimum kuyerwa kubuda: 5pC;kuyerwa kwebhendi: 500kHz-30MHz;kuburitsa pulse resolution: 10μs;Kugadziriswa kwechikamu: 0.18 °.
Inogona kuratidza iyo simba frequency cycle discharge diagraph, maviri-dimensional (Q-φ, N-φ, NQ) uye matatu-dimensional (NQ-φ) discharge spectra.
Inogona kurekodha maparamendi akakodzera akadai sekuyeresa nhanho kutevedzana, kuburitsa huwandu, kuburitsa chikamu uye kuyerwa nguva.Iyo inogona kupa discharge maitiro graph uye ine pre-yambiro uye alarm mabasa.Inogona kubvunza, kudzima, kuchengetedza uye kudhinda mishumo pane dhatabhesi.
Iyo sisitimu inosanganisira zvinotevera zviri mukati mekutora chiratidzo uye kugadzirisa: chiratidzo chekutora uye kutapurirana, chiratidzo chechiratidzo chekuwedzera, kucherechedzwa kwepateni, kutadza kuongororwa uye tambo yemidziyo mamiriro ekuongorora.
Iyo sisitimu inogona kupa chikamu uye amplitude ruzivo rweiyo PD chiratidzo uye density ruzivo rwekuburitsa pulse, iyo inobatsira kutonga rudzi uye kuoma kwekubuda.
Kukurukurirana modhi sarudzo: tsigira network tambo, fiber optic, wifi yekuzvironga LAN.
3. PD software system
Iyo sisitimu inoshandisa yekumisikidza software sepuratifomu yekuvandudza yekutora uye yekuongorora software kuti ive nechokwadi chekuitwa kwakanaka kweanti-kupindira tekinoroji.Sisitimu software inogona kukamurwa kuita parameter kumisikidza, kutora data, anti-kupindira kugadzirisa, spectrum ongororo, maitiro ekuongorora, kuunganidzwa kwedata uye kushuma.
Pakati pavo, chikamu chekutora data chinonyanya kupedzisa kuseta kwekadhi rekutora data, senge nguva yesampling, iyo yepamusoro poindi yekutenderera, uye nguva yesampling.Iyo software yekutora inounganidza data zvinoenderana neyakagadzikwa yekutora kadhi paramita, uye otomatiki inotumira iyo yakaunganidzwa data kune anti-kupindira software yekugadzirisa.Kunze kweiyo inopesana-kupindira yekugadzirisa chikamu, iyo inoitwa kumashure kwechirongwa, iyo yese inoratidzwa kuburikidza neiyo interface.
Zvimiro zveSoftware system
Iyo huru interface inosimudzira yakakosha ruzivo rwekutarisa uye nekudzvanya inoenderana nekukurumidza kuti uwane zvakananga ruzivo rwakadzama.
Iyo yekushandisa interface iri nyore kushandisa uye kuvandudza kugona kwekutora ruzivo.
Iine simba rekutsvaga dhatabhesi basa remubvunzo wefomu, maitiro graph uye Pre-yambiro yekuongorora, spectrum ongororo, nezvimwe.
Iine online data yekuunganidza basa, iyo inogona kuongorora data yeimwe neimwe subsystem muchiteshi panguva yakatarwa nemushandisi.
Nemidziyo yekukanganisa yambiro basa, kana iyo yakayerwa kukosha kweiyo online yekuona chinhu ichipfuura iyo alarm muganho, sisitimu inotumira meseji yealarm yekuyeuchidza mushandisi kubata midziyo nenzira kwayo.
Iyo sisitimu ine yakazara kushanda uye kugadzirisa basa, iyo inogona zviri nyore kuchengetedza system data, system paramita, uye matanda ekushanda.
Iyo sisitimu ine scalability yakasimba, iyo inogona kuona zviri nyore kuwedzera kwemamiriro ekuona zvinhu zvemidziyo yakasiyana-siyana, uye kuenderana nekuwedzera kwebhizimusi vhoriyamu uye bhizinesi maitiro;Nerogi manejimendi basa, iro rinorekodha mashandiro evashandisi matanda uye hurongwa hwekutaurirana manejimendi zvakadzama, izvo zvinogona kubvunzwa zviri nyore kana kuzvichengeta.
4. Kudzora kabati
Iyo control cabinet inoisa monitor uye maindasitiri komputa, kana zvimwe zvinodiwa zvinodiwa.Zviri nani kupihwa nekushandisa
Kabati yakamisikidzwa mukamuri huru yekudzora yechiteshi, uye dzimwe nzvimbo dzinogona kusarudzwa kuti dzigadzirwe zvinoenderana nezvinodiwa saiti.
1. Mabasa
Iyo HFCT sensor inoshandiswa kuyera kuvharwa kwePD mune stator windings.Iyo epoxy mica HV coupling capacitor ndeye 80pF.Kuyera coupling capacitors kunofanirwa kuve nekugadzikana kwepamusoro uye kugadzikana kwekudzivirira, kunyanya pulse overvoltage.PD sensors uye mamwe ma sensor anogona kubatana kune iyo PD muunganidzi.Wideband HFCT inoshandiswa kudzvinyirira ruzha.Kazhinji, masensa aya akaiswa patambo yemagetsi yakadzika.
Iyo yakanyanya kuomesesa yePD kuyerwa kudzvinyirirwa kweruzha mumidziyo yakakwira magetsi, kunyanya HF pulse kuyerwa nekuti ine ruzha rwakanyanya.Iyo inonyanya kushanda nzira yekudzvinyirira ruzha ndiyo "nguva yekusvika" nzira, iyo yakavakirwa pakuona uye kuongorora mutsauko wekupopudza nguva dzekusvika kwemasensa akati wandei kubva kune imwe PD kuenda kune yekutarisa system.Iyo sensor ichaiswa padhuze neyakavharirwa discharge chinzvimbo kuburikidza iyo yekutanga yakakwirira frequency pulses yekubuda inoyerwa.Nzvimbo yekudzivirira kukanganisa inogona kuonekwa nemusiyano wenguva yekusvika kwepulse.
Zvinotsanangurwa zvePD muunganidzi
●PD chiteshi: 6-16.
●Pulse frequency range (MHz): 0.5 ~ 15.0.
●PD pulse amplitude (pc) 10 ~ 100,000.
●Yakavakirwa-mukati nyanzvi system PD-Nyanzvi.
●Interface: Ethernet, RS-485.
●Simba rekupa magetsi: 100 ~ 240 VAC, 50 / 60Hz.
●Saizi (mm): 220*180*70.
●Nesimba rakasimba rinopesana nekupindira.Iyo sisitimu inoshandisa Broadband yekuona tekinoroji uye ine yakazara interface yekudzivirira yedunhu kuti irambe zvakakura zvino surge uye kuderera kwesimba rekushandisa.
●Nebasa rekurekodha, chengetedza iyo yekutanga bvunzo data, uye yepakutanga data apo mamiriro ebvunzo anogona kuridzwa zvakare.
●Zvinoenderana nemamiriro emunda, iyo optical fiber LAN transmission network inogona kushandiswa, uye kureba kwekutapurirana kureba, kwakagadzikana uye kwakavimbika.Chimiro chakabatana, chiri nyore kuisa, uye chinogonawo kuonekwa nefiber-optic LAN chimiro.
●Iyo yekumisikidza software inoshandiswa kufambisa iyo pa-saiti kumisikidza interface.
2. Applied Standard
●IEC 61969-2-1 Mechanical zvimiro zvemidziyo yemagetsi Zvivharo zvekunze Chikamu 2-1.
●IEC 60270-2000 Chikamu Chekuburitsa Chiyero.
●GB/T 19862-2005 Indasitiri otomatiki chiridzwa insulation kuramba, insulation simba tekinoroji zvinodiwa uye bvunzo nzira.
●IEC 60060-1 Yakakwira voltage bvunzo tekinoroji Chikamu 1: Tsananguro dzakajairwa uye zvinodiwa zvekuyedzwa.
●IEC 60060-2 Yakakwira voltage bvunzo tekinoroji Chikamu 2: Kuyera masisitimu.
●GB 4943-1995 Kuchengetedzwa kweruzivo tekinoroji zvishandiso (kusanganisira zvemagetsi zvinhu zvemagetsi).
●GB/T 7354-2003 Chikamu chekuyerera kuyerwa.
●DL/T417-2006 Site Guidelines for Partial Discharge Measurement of Power Equipment.
●GB 50217-2007 Power Injiniya Cable Dhizaini Kutsanangurwa.
