Iyo voltage inodzora mudziyo weiyo transformer yakakamurwa kuita shanduri "off-excitation" voltage regulating mudziyo uye transformer "on-load" tap chenger.
Ose ari maviri anoreva voltage regulating mode ye transformer tap shanduko, saka ndeupi musiyano uripo pakati pezviviri izvi?
① Iyo "off-excitation" tap chenger ndeye kushandura iyo yakakwira-voltage padivi pombi yetransformer kuti ichinje chiyero chekutenderera kwemhepo yekudzora magetsi apo ese ekutanga uye echipiri mativi e transformer akadzimwa kubva pamagetsi.
② "On-load" tap chenger: Uchishandisa iyo-load tap inoshandura, pombi yetransformer inotenderera inoshandurwa kuti ichinje yakakwirira-voltage inotendeuka yekudzora magetsi pasina kugura mutoro wazvino.
Musiyano uripo pakati pezviviri izvi ndewekuti iyo off-excitation tap changer haina kugona kushandura magiya nemutoro, nekuti iyi rudzi rwepombi shanduko ine yenguva pfupi yekudimbura maitiro panguva yekuchinja giya. Kubvisa mutoro wazvino kunokonzeresa arcing pakati pevanobatika uye kukuvadza pombi inoshandura. Iyo on-load tap inoshandura ine yakanyanyisa kuramba shanduko panguva yekuchinja giya, saka hapana kwenguva pfupi yekubvisa maitiro. Paunenge uchichinja kubva kune rimwe giya kuenda kune rimwe, hapana arcing maitiro kana mutoro wazvino unobviswa. Iyo inowanzo shandiswa kune ma transformer ane yakasimba voltage zvinodiwa izvo zvinoda kugara zvichigadziriswa.
Sezvo iyo transformer "on-load" tap inoshandura inogona kuona iyo voltage regulation basa pasi pekushanda kweiyo transformer, sei uchisarudza "off-load" tap shanduko? Zvechokwadi, chikonzero chekutanga mutengo. Mumamiriro ezvinhu akajairwa, mutengo weiyo off-load tap inoshandura shanduko ndeye 2/3 yemutengo weiyo-inotakura tap inoshandura shanduko; panguva imwecheteyo, vhoriyamu ye-off-load tap changer transformer idiki zvakanyanya nekuti haina pane-load tap shanduko chikamu. Naizvozvo, mukusavapo kwemirairo kana mamwe mamiriro, iyo off-excitation tap inoshandura shanduko ichasarudzwa.
Sei uchisarudza iyo transformer pa-load tap shanduko? Basa racho nderei?
① Kuvandudza chiyero chemagetsi.
Iyo simba rekufambisa mumagetsi system yekugovera network inoburitsa kurasikirwa, uye kukosha kwekurasikirwa ndiyo idiki chete pedyo neyakayerwa voltage. Kuita on-load voltage regulation, kugara uchichengeta substation bhazi voltage inokodzera, uye kuita kuti michina yemagetsi imhanye payakayerwa voltage state kunoderedza kurasikirwa, kunove kwakanyanya hupfumi uye zvine musoro. Iyo voltage qualification rate ndechimwe chezviratidzo zvakakosha zvemhando yemagetsi. Panguva ino-on-load voltage regulation inogona kuve nechokwadi cheiyo voltage qualification rate, nekudaro ichizadzisa zvinodiwa nehupenyu hwevanhu uye kugadzirwa kwemaindasitiri nekurima.
② Kuvandudza reactive simba rekubhadhara simba uye kuwedzera capacitor yekupinda chiyero.
Sechigadziriso chemagetsi ekubhadhara simba, iro reactive simba rinobuda remagetsi capacitors rinoenderana neskweya yemagetsi anoshanda. Kana simba rekushanda resimba remagetsi richidzikira, muripo wemuripo unodzikira, uye kana simba rekushanda richiwedzera, midziyo yemagetsi inokwidziridzwa, zvichiita kuti terminal voltage iwedzere, kunyange kupfuura mwero, zviri nyore kukuvadza kuvharirwa kwemidziyo. uye chikonzero
midziyo tsaona. Kuti udzivise simba rekuita kuti rirege kudzoserwa kusimba remagetsi uye reactive simba rekubhadhara midziyo kubva pakuremara, zvichikonzera marara uye kuwedzera kurasikirwa kwemagetsi emagetsi, iyo main transformer tap switch inofanirwa kugadziridzwa nenguva kugadzirisa bhazi. voltage kune iyo inokodzera renji, kuitira kuti hapana chikonzero chekudzima iyo capacitor muripo.
Maitiro ekushandisa iyo on-load voltage regulation?
Iyo on-load voltage regulation nzira dzinosanganisira yemagetsi voltage regulation uye manual voltage regulation.
Izvo zvakakosha zve-on-load voltage regulation ndeyekugadzirisa magetsi nekugadzirisa chiyero chekushandura chepamusoro-voltage side apo magetsi ari padivi rezasi-voltage anoramba asina kuchinja. Isu tese tinoziva kuti iyo yakakwira-voltage divi kazhinji ndiyo system voltage, uye system voltage inowanzogara. Kana iyo nhamba yekutendeuka pa-high-voltage side winding inowedzera (kureva kuti, chiyero chekushandura chinowedzera), magetsi ari padivi rezasi-voltage achaderera; pane zvinopesana, kana nhamba yekutendeuka pa-high-voltage side winding inoderedzwa (kureva kuti, chiyero chekushandura chinoderedzwa), iyo voltage padivi rezasi-voltage ichawedzera. Ndiko kuti:
Wedzera kutendeuka = downshift = kuderedzwa kwemagetsi Kuderedza kutendeuka = upshift = kuwedzera kwemagetsi
Saka, mumamiriro api ezvinhu asingagone kuita iyo transformer pa-load tap shanduko?
① Kana transformer yaremerwa (kunze kwemamiriro akakosha)
② Kana iyo mwenje gasi alarm ye-on-load voltage regulation mudziyo waitwa
③ Kana iyo mafuta ekudzvinyirirwa kweiyo on-load voltage regulation mudziyo isina kukodzera kana pasina mafuta mucherechedzo wemafuta.
④ Kana iyo nhamba yemagetsi regulation ichipfuura nhamba yakatarwa
⑤ Kana iyo voltage regulation mudziyo isina kujairika
Sei kuwandisa kuchikiyawo pa-load tap chenger?
Izvi zvinodaro nekuti pasi pemamiriro akajairwa, panguva ye-on-load voltage regulation process yeiyo main transformer, pane musiyano wevoltage pakati pehombe yekubatanidza uye tepi inotangwa, iyo inogadzira ikozvino inotenderera. Naizvozvo, panguva yeiyo voltage regulation process, resistor inobatanidzwa mukufanana kuti ipfuure kutenderera kwazvino uye mutoro wazvino. Iyo parallel resistor inoda kumira yakakura ikozvino.
Kana iyo shanduko yemagetsi yaremerwa, iko kushanda kweiyo main transformer inodarika yakayerwa ikozvino yepombi shanduko, iyo inogona kupisa mubatsiri wekubatanidza wepombi shanduko.
Naizvozvo, kuitira kudzivirira iyo arcing phenomenon yepombi shanduko, zvinorambidzwa kuita pa-load voltage regulation kana iyo main transformer yakawandisa. Kana iyo voltage regulation ikamanikidzwa, iyo on-load voltage regulation mudziyo inogona kupisa kunze, gasi remutoro rinogona kuvhurwa, uye main transformer switch inogona kugumburwa.
Nguva yekutumira: Sep-09-2024