High-voltage bushing (high-voltage bushing) zvinoreva mudziyo unobvumira kondakita mumwe kana akati wandei kuti apfuure nepazvikamu zvakaita semadziro kana mabhokisi ekuvharisa nerutsigiro, uye chinhu chakakosha mumasisitimu emagetsi.Mukugadzirisa kwekugadzira, kutakura uye kugadzirisa, high-voltage bushings inogona kunge ine latent defects nekuda kwezvikonzero zvakasiyana-siyana;panguva yekushanda kwenguva refu, vanobatwa nemigumisiro yemunda wemagetsi uye conductor heat, mechanical damage uye makemikari corrosion, uye mamiriro emuchadenga.Pachavawo nezvikanganiso zvishoma nezvishoma.
High-voltage bushings inonyanya kushandiswa kuvharidzira pasi kwemitsara inopinda uye inobuda yemidziyo yemagetsi yakadai sema transformer, reactors, uye circuit breaker, uye high-voltage circuits anopfuura nemadziro.Kune marudzi matatu emhando yepamusoro-voltage bushings: imwe dielectric bushing, composite dielectric bushing uye capacitive bushing.Iyo huru insulation ye capacitive bushing inoumbwa necoaxial cylindrical series capacitor bank inoumbwa nemhepo yakaturikidzana insulating zvinhu uye foil simbi electrodes alternately pane conductive tsvimbo.Zvinoenderana neyakasiyana insulating zvinhu, yakakamurwa kuita gummed bepa uye oiled bepa capacitive bushing.110kV uye pamusoro petransformer yakakwirira-voltage bushings inowanzova mafuta-bepacapacitor mhando;Iyo inoumbwa ne wiring terminals, mafuta ekuchengetedza kabati, yepamusoro porcelain sleeve, yakadzika porcelain sleeve, capacitor core, gidhi tsvimbo, insulating mafuta, flange, uye bhora rekumanikidza.
Munguva yekushanda kwe-high-voltage bushing, iyo huru yekudzivirira inofanira kumira yakakwirira, uye chikamu chinofambisa chinofanira kutakura ikozvino huru.Mhosva huru kusabatana kwakashata kwemukati nekunze kwemagetsi ekubatanidza, kunyorova uye kushata kwekuvharisa bushing, kushaikwa kwemafuta mubhushi, kuburitswa kwechikamu checapacitor core uye kuburitsa kwekupedzisira skrini kusvika pasi, nezvimwe.
Iyo transformer bushing chishandiso chekubuda chinotungamira waya yakakwira-voltage yetransformer inotenderedza kuenda kunze kwetangi remafuta, uye inoshanda seye conductive chikamu tsigiro uye pasi insulation.Munguva yekushanda kwekushandura, mutoro wezvino unopfuura kwenguva yakareba, uye nguva shoma-yekutenderera inopfuura apo chidimbu chiduku chinoitika kunze kweshanduro.
Naizvozvo, iyo transformer bushing ine zvinotevera zvinodiwa:
Inofanira kunge yakataura simba remagetsi uye simba rakakwana remagetsi;
Inofanira kuva nekugadzikana kwakanaka kwekushisa uye kukwanisa kutsungirira kupisa kwepakarepo kana ipfupi-inotenderera;diki muchimiro, diki muhuremu, uye yakanaka mukusunga chisimbiso.
Classification
High-voltage bushings inogona kukamurwa kuva mafuta-akazara bushings uye capacitive bushings.
The cablebepamumafuta akazara bushing akafanana neplate yakaenzana mu capacitive bushing.Iyo capacitor core mu capacitive bushing inoteedzana coaxial cylindrical capacitors, uye mumafuta akazadzwa nemafuta, iyo dielectric nguva yebepa insulating yakakwirira kupfuura iyo yemafuta, iyo inogona kuderedza simba remunda ipapo.
Mafuta anozadzwa nemafuta anogona kukamurwa kuita gap rimwe chete remafuta uye akawanda-oiri gap bushings, uye capacitive bushings inogona kukamurwa kuita gummed uye neoiled paper bushings.
Sleeves anoshandiswa kana maconductor anotakura-azvino achifanira kupfuura nepamivharo yesimbi kana madziro pane zvakasiyana.Zvinoenderana nechiitiko ichi chinoshanda, mabhushi anogona kupatsanurwa kuita mabhushi eshanduko, mabhushi ekuchinja kana midziyo yemagetsi yakasanganiswa, uye matanda emadziro.Nokuda kwegadziriro iyi ye "plug-in" electrode, nzvimbo yemagetsi yakanyanyisa pamucheto wekunze kwe electrode (yakadai sepakati peflange yebhushi), apo kubuda kunowanzotanga.
Kushandiswa uye hunhu hwecasing
High-voltage bushings inoshandiswa kune ma-high-voltage conductors kuti apfuure nepakati pezvikamu zvakasiyana-siyana (zvakadai semadziro nesimbi casings yemidziyo yemagetsi) yekudzivirira uye kutsigirwa.Nekuda kwekusaenzana kugovaniswa kwemunda wemagetsi mugwenzi, kunyanya iyo yakanamirwa yemagetsi munda pamucheto wepakati flange, zviri nyore kukonzeresa kutsvedza kwepasi.Iyo yemukati yekumisikidza chimiro chebhushi ine yakakwira voltage level yakanyanya kuoma, kazhinji uchishandisa yakasanganiswa insulating zvinhu, uye kune matambudziko akadai sechikamu chekubuda.Naizvozvo, kuyedzwa uye kuongororwa kwecasing kunofanirwa kusimbiswa.
Nguva yekutumira: Mar-27-2023