Density uye viscosity yemafuta ekushandura
Zviri mukati
Transformer mafuta density
Hunhu hwemhando dzese dzemafuta etransformer dzinoonekwa sedzinogona kudzika kutsamira kwe density index pane tembiricha yekunze uye kukosha kwakaderera kweiyo thickening point (semuenzaniso, yemafuta eTKp brand, iyo yekupedzisira ndeye -45°C, uye nokuda kweT-1500 - kunyange -55 ° C).
Standard transformer mafuta density ranges inosiyana zvichienderana nemafuta density mumhando (0,84…0,89)×103 kg/m3. Zvimwe zvinhu zvinokanganisa density zvinosanganisira:
- Kuumbwa kwemakemikari (kuvapo kwezvinowedzera, iyo huru iyo ionol).
- Thermal kuitisa.
- Viscosity (yakasimba uye kinematic).
- Thermal diffusivity.
Kuti uverenge huwandu hwemaitiro ekuita, kuwanda kwemafuta e-transformer inotorwa seyereferensi kukosha (kunyanya, kuona mamiriro ekunze kwemukati kunokanganisa kutonhora kwepakati).
Density yeakashandiswa transformer mafuta
Mukugadzirisa kudzima kunogona kubuda kwemagetsi kunogona kuitika mukati meimba ye transformer, mafuta anosvibiswa nediki diki rekuisa magetsi, pamwe chete nezvigadzirwa zvemakemikari. Pakupisa kwepamusoro, zvinogona kuitika munzvimbo ine mafuta. Nokudaro, nekufamba kwenguva, kuwanda kwemafuta kunowedzera. Izvi zvinotungamirira kukudzikira kwekutonhodza simba remafuta uye kuonekwa kwezvinobvira mabhiriji ekufambisa anoderedza kuchengetedzwa kwemagetsi kweshanduko. Oiri iyi inoda kutsiviwa. Inoitwa mushure meimwe nhamba yemaawa ekushanda kwechigadzirwa, icho chinowanzoratidzwa nemuiti wayo. Zvisinei, kana transformer inoshandiswa pasi pemiganhu yemiganhu, kudiwa kwekutsiva kunogona kuonekwa kare.
Kune zvigadzirwa zvakavakirwa paparafini, kuwedzera kwehuwandu hwemafuta etransformer kunokonzerwawo nekuti zvigadzirwa zve oxidation (sludge) hazvigoneke uye zvinogara pazasi petangi. Iyi sediment inoshanda sechipingamupinyi kune inotonhora system. Uye zvakare, iyo yakawandisa vhoriyamu ye macromolecular makomisheni inowedzera kudira poindi yeoiri.
Kuedza iwo chaiwo kukosha kweiyo density index kunoitwa mune inotevera kutevedzana:
- Sampuli dzemafuta dzinotorwa kubva kunzvimbo dzakasiyana dzetangi. Ichokwadi ndechokuti kuparadzwa kwe dielectric kunopesana nehuwandu hwehuwandu hwemvura, izvo zvinoreva kuti simba re dielectric remafuta anoshandura rinoderera sezvo mvura inowedzera.
- Uchishandisa densitometer, pima kuwanda kwemafuta uye uenzanise nemaitiro anokurudzirwa.
- Zvichienderana nenhamba yemaawa mafuta anga achimhanya mushanduko, ingave iyo yakataurwa vhoriyamu yemafuta matsva inowedzerwa, kana iyo yekare inonatswa kunze.
Viscosity yemafuta ekushandura
Viscosity hunhu hunokanganisa kuchinjisa kupisa mukati meoiri reservoir. Viscosity calculation nguva dzose inoramba iri yakakosha kushanda parameter pakusarudza mafuta kune chero rudzi rwemagetsi emagetsi. Zvinonyanya kukosha kuziva viscosity yemafuta e-transformer pakupisa kwakanyanya. Zvinoenderana nezvinodiwa zveyeyero yenyika, kutsunga kwe kinematic uye dynamic viscosity kunoitwa pakupisa kwe40.°C uye 100°C. Kana iyo transformer inonyanya kushandiswa kunze, kumwe kuyerwa kunoitwawo pakupisa kwe15.°C.
Iko kurongeka kwekutsunga kwe viscosity kunowedzera kana iyo refractive index yepakati inoongororwa zvakare mukuenderana nerefractometer. Iyo diki mutsauko weviscosity values inowanikwa pane dzakasiyana tembiricha tembiricha, zviri nani mafuta. Kudzikamisa viscosity zviratidzo, zvinokurudzirwa kuti nguva nenguva hydrotreat transformer oiri.
