Hunhu uye Mashandisirwo eDry Type Transformer

Parizvino, ma transformer emagetsi akaoma eChina anonyanya kuve matatu-phase solid forming SC series, akadai se: SCB9 series three-phase winding transformer, SCB10 series three-phase foil transformer SCB9 series three-phase foil transformer. Voltage level yayo inowanzova pakati pe6-35kV, kugona kwayo kwepamusoro kunosvika 25MVA. Dry transformer inonyanya kupatsanurwa muzvikamu zviviri zve transformer yakaoma yakanyudzwa uye resin dry transformer.

1. Transformer yemhando yakaoma yakanyudzwa

Waya yemuchina we transformer wakanyudzwa muChina wakafukidzwa newaya yegirazi, uye padhi rinodzvanywa nechinhu chinodzivirira kupisa chinoenderana nacho. Inonyanya kushandiswa muzviteshi zvemagetsi zvemvura nezvivakwa zvirefu zvine simba rekudzivirira moto.

Nekuda kwemusiyano wependi inoisa mudumbu, transformer insulation yakakamurwa kuita B, F, H, C, main insulation ne vertical (main insulation iri pakati pekumonera nekumonera uye pakati pekumonera nekumonera kwepakati.

Kudzivirira kwakamira kunoreva kudzivirira pakati penzvimbo dzakasiyana uye zvikamu zvakasiyana zve transformer winding zvine potentials dzakasiyana, kunyanya kusanganisira kushanda kwekudzivirira pakati pema turns, layers uye zvikamu zve winding. Mhepo inoshandiswa se insulation medium.

Rudzi urwu rwetransformer runokanganiswa nemamiriro ekunze kupfuura transformer yakaoma yerudzi rweresin, chitarisiko nehuremu zvakakurawo, zvinobuda mumba nekune dzimwe nyika zvinowanzoderera.

Kune magumo ezvisimbiso kumativi ese ekutenderera, asingatyi mafungu emvura, anodzivirira moto zvakanyanya, kudzivirira moto mumoto wakavhurika pa750 ℃, imhando itsva ye transformer yakaoma.1.2 Resin yakaoma mhando transformer panzvimbo ye resin casting transformer yemazuva ano inogona kukamurwa muzvikamu zvitatu zvinotevera.

Rudzi rwekutanga, runonzi wire wound casting transformer, high voltage yayo ndeye wire wound breaking cylinder casting, low voltage ndeye wire wound cylinder (kana segmented cylinder) casting; Li Qian, Shaanxi provincial Electric Power (group) Co., LTD. Cherechedza kuti hapana filler casting.

Rudzi rwechipiri, runonzi transformer yekukanda mavanga efoil, voltage yayo yepamusoro imhando yekukanda mavanga efoil, voltage yakaderera imhando yekukombama yefoil yemhangura (kana aruminiyamu foil); Kukanda kunokandwa nefiller.

Rudzi rwechitatu, kumanikidzwa kwakanyanya kwesimbi yekupwanya maronda newaya, kumanikidzwa kwakaderera kwesimbi yemhangura (kana aluminium foil) kutenderedza; Kukanda kunokandwa pasina filler.

Mhando nhatu dzezvigadzirwa dziri pamusoro apa dzine hunhu hwadzo mukugadzirwa uye mashandiro ezvigadzirwa, uye parizvino dzine chikamu chakati chemusika mumusika. Muchinyorwa chino, tinotarisa pakukurukura nezvematransformer anodira waya.

2. Chinoshandura jira remaronda ewaya

2.1. Zvimiro zvechivako

Munzvimbo yechipiri yemagetsi yeBaoji, mudunhu reShaanxi, matransformer akaoma anoshandiswa mufekitori ese ari matransformer anoputirwa newaya, ane voltage grade ye6 kV, kugona kubva pa100 kVA kusvika 1600 kVA, uye kuiswa mukati.

Mawindings emagetsi akakwira uye akaderera echigadzirwa ichi akagadzirwa newaya yemhangura, akaputirwa zvizere, girazi rakasimbiswa, insulation yakatetepa, resin isina filler, yakanyudzwa pasi pevacuum state, uye yakaporeswa zvichienderana nekupisa kwakatarwa.

Kutenderera kwemagetsi kwakakwira kunoshandisa chimiro chesilinda chakapatsanurwa, uye kutenderera kwemagetsi kwakaderera kunoshandisa mhando yesilinda ine layer yakawanda, mhando yesilinda yakapatsanurwa kana mhando yesilinda yakapatsanurwa zvichienderana nedanho remagetsi.

2.2 Zvinhu zveUnyanzvi

2.2.1 Kudzivirira kwewaya kudirwa kwegedhi re transformer hv rinoshandisa chimiro chakakosha che cylindrical, chimiro ichi chakavakirwa pa common section bobbin winding, ordinary subsection cylinder type zvese zvakagara nhaka mabhenefiti e mbobbin winding impact resistance, uye yakagadzirisa bobbin winding layer ye high voltage pakati pe contradiction, i winding structure yakanaka, Inowanzonzi non-resonant winding structure.

Kana tichienzanisa nesilinda yakakamurwa, silinda yakakamurwa inogona kuderedza voltage pakati pezvikamu, kuvandudza kugoverwa kwevoltage, uye kuvandudza zvikuru simba rekupikisa kuti rigone kutsungirira overvoltage yemumhepo uye overvoltage inoshanda.

Kuramba kusimba kwesimba hakungobatanidzwi chete nechimiro chemuchina wekumonera, asiwo zvinoenderana nehunhu hwekumonera kwemuchina wekumonera uye hunhu hwemagetsi hwechinhu chinodzivirira kupisa.

Mushure mekunge kutenderedza kwechigadzirwa kwapera, chinodururwa neresin yakachena muchimiro chevacuum, uye hapana chinowedzera chinodiwa, kuitira kuti mashandiro eresin asaderedzwe.

Uye nekuti kutenderedzwa kwemhepo kunomonerwa newaya, resin inogona kugutsa mhepo yacho zvakakwana, zvisinei nekuti iri kubva kudivi re axial kana radial rekumonerwa kwemhepo, uye hapana bubble mukati.

Pfupiso: Pepa iri rinosuma kupatsanurwa uye hunhu hwetransformer yakaoma, uye rinotarisa pane hunhu hwechimiro chetransformer inodira maronda ewaya, hunhu hwehunyanzvi, sisitimu yekutonhodza, sisitimu yekudzora tembiricha nezvimwewo, rakapfupikisa tarisiro yekuvandudzwa kwetransformer yakaoma. Mazwi akakosha: transformer yakaoma; Kupatsanurwa kwetransformer inokanda maronda ewaya.

Resin negirazi fiber zvinoumbwa nekudzivirira kwakasimba, kwete chete kudzivirira kukuvadzwa kwakanaka, uye kubudiswa kwemvura munzvimbo yacho kudiki kwazvo.

2.2.2. Simba rakanaka remuchina uye kuramba kwakasimba kwemhepo pfupi. Kune waya inomonereka yakakamurwa, mushure mekudira vacuum, resin inogona kunyikwa pakati pezvikamu, matenderedzwa uye zvikamu zvekumonereka panguva imwe chete.

Mushure mekugadziriswa, resin, waya negirazi fiber zvinosanganiswa zvakasimba kuti zvigadzire chimiro chakasimba chemuviri. Hunhu hwakasimba hwemuchina hwechivakwa hunoratidza kuti zvigadzirwa zvekukanda maronda ewaya zvine resistance yakanaka yeshort-circuit.

Kuwanda kwekuwedzera kwekupisa kwezvinhu zvinodzivirira zvinoumbwa ne resin inochenesa uye fiber yegirazi ndeye (18 ~ 20)×10-6/K, uye kuwedzera kwekuwedzera kwemhangura inoshandiswa mukumonera ndeye 17×10-6/K, iyo iri pedyo neiri mbiri. Inobvisa kushushikana kwemuchina pakati pemukomberi wekumonera nezvinhu zvinodzivirira zvinokonzereswa nekuwedzera kwekupisa uye kutonhora panguva yekushanda kwetransformer. Kubva pamudzi kusvika pakubvisa chiitiko chekutsemuka.

Sezvo chigadzirwa ichi chakaumbwa neresin pakumanikidzwa kwakanyanya uye kwakaderera uye simbi yakaputirwa neresin, ine hunyoro hwakasimba uye inodzivirira ngura. Kana hunyoro hwemhepo huri 100%, inogona kuramba ichishanda kwenguva yakareba.

Nekuti chinhu chinoputira chakagadzirwa ne resin yakachena negirazi fiber chine simba guru remagetsi, ukobvu hwechinhu chinoputira pamusoro pechinhu ichi hunongova 1.5 ~ 2 mm, izvo zvinovandudza zvakanyanya kushanda kwekupisa kwenzvimbo inomonereka.

2.3. Sisitimu yekutonhodza nekudzivirira

Matransformer akaoma anotonhodzwa nekutonhodzwa kwemhepo yechisikigo uye kutonhodzwa kwemhepo inotenderera. Kutonhodzwa kwemhepo yechisikigo kunoshandiswa kuona kuti transformer inoshanda zvakanaka pasi pemutoro wakayerwa. Matransformer akaoma anoshandiswa mubaoji No.2 power plant ese anotonhodzwa nemhepo inomanikidzwa nefan ye radial.

Mushure mekutonhodza nemhepo inoyerera nesimba, simba re transformer yemhando yakaoma ine 800 kVA zvichidzika rinogona kuwedzerwa ne40%, uye re transformer yemhando yakaoma ine 800 kVA zvichikwira rinogona kuwedzerwa ne50%, uye rinogona kushanda nguva dzose.

Transformer yemhando yakaoma inowanzo shandiswa IP00 kudzivirira, kureva kuti, isina ganda, kushandiswa mukati, Baoji power plant yechipiri inoshandiswa nenzira iyi yekudzivirira. Zvakare zvinoenderana nezvinodiwa nemushandisi, wedzera ganda rekudzivirira.

Imba yeIP20 inodzivirira kupinda kwezvinhu zvakasimba zvinopfuura 12 mm uye inopa chipingamupinyi kuzvikamu zvipenyu. Kana dziviriro yeIP23 yashandiswa, kunze kwebasa redziviriro yeIP20, inewo basa rekudzivirira kupararira kwemvura.

2.4. Sisitimu yekudzora tembiricha

Kushanda kwakachengeteka uye kwakavimbika uye hupenyu hwebasa re transformer yemagetsi zvinoenderana zvakanyanya nekudziya kwakachengeteka uye kwakavimbika kwe transformer winding. Kupisa kwekudziya kunopfuura tembiricha yekudzivirira ndicho chimwe chezvikonzero zvikuru nei insulation ichiparadzwa uye transformer isingashande zvakanaka.

SC series wire wound casting transformer inoshandisa XMTB otomatiki tembiricha yekudzivirira system. Chinhu chekuyera tembiricha yekudzivirira kupisa kweplatinum chinoiswa mukona yekutanga yewaya ine voltage shoma kuti ione otomatiki tembiricha yemhepo inotenderera, kuratidza tembiricha yemhepo ine voltage shoma yezvikamu zvitatu, uye kuvapa dziviriro yekupisa.

Kana tembiricha yekunze uye mutoro zvachinja, kana kutenderedza kwasvika patembiricha yakatarwa, muchina wekutonga tembiricha unotumira otomatiki chiratidzo chekudzora kutanga kwefeni (110 ℃), kumira kwefeni (90 ℃), alarm (120 ℃) ​​uye trip (145 ℃), kuitira kuti chigadzirwa chive nedziviriro yakavimbika yekuwedzera mutoro uri kushanda.

Matransformer eSC3 series wirewound casting anoshandisa tekinoroji yeM&C patented yekuona tembiricha nekudzora matransformer windings, uye anogadzira tembiricha controller iyo inogona kuona zvakananga tembiricha yemawindings, uye kuona kudzorwa kwemhepo inotonhorera (AF), alarm yekupisa zvakanyanya uye kufamba kwetransformer zvakanyanya.

Mushure mekugadzirisa tembiricha yemuchina wekugadzirisa tembiricha, transformer inotanga yaiswa mu network operation, uye then the tembiricha controller inopihwa simba rekushanda. The tembiricha controller inenge iri mu automatic control, uye tembiricha yemuchina wekugadzirisa tembiricha inoonekwa uye inodzivirirwa. Kana tembiricha yemuchina wekugadzirisa tembiricha yakakwira kupfuura 110 ℃, the tembiricha controller inotanga fan kuti itonhore; Kana tembiricha yemuchina wekugadzirisa tembiricha yadzikira pasi pe90 ℃ kana mhepo yatonhodzwa, fan inomira.

Kana tembiricha yekumonera ikawedzera, muchina wekutonga tembiricha unoburitsa alarm yekudziya zvakanyanya (155 ℃) uye chiratidzo chekukwira zvakanyanya (170 ℃). Kana muchina wekutonga tembiricha ukakundikana uye usingakwanise kubviswa kwenguva pfupi, bvisa muchina wekutonga tembiricha, muchina wekushandura tembiricha unogona kuramba uchishanda, unongoda kutarisa uye kuona kuti muchina wekushandura tembiricha uri kushanda zvakajairika.

3. Kuenzanisa pakati petransformer yakaoma netransformer yakanyudzwa mumafuta

Zvakanakira zvakakosha uye mutengo wakaderera wematransformer anonyudzwa mumafuta zvakaoma kutsiviwa nemamwe matransformer. Mukuchengetedza kwekunze uye moto kwenzvimbo dzakajairika, pari zvino uye mune ramangwana kwenguva yakareba, transformer icharamba ichinyanya kunyudzwa mumafuta.

Asi kune nzvimbo dzine zvinodiwa zvakanyanya zvekudzivirira moto, ma transformer emhando yakaoma kana isingabatike uye ma transformer emvura isingabatike anoshandiswa. Transformer yakaoma ine simba rakawanda kupfuura transformer inonyudzwa mumafuta, kunyanya nekuti huwandu hwe transformer yakaoma hwakaderera, simba rekupisa rakakura, uye nguva yekutenderera yakakura.

Kana tichienzanisa netransformer yakanyudzwa nemafuta, mamiriro ekushanda kwetransformer yakaoma anovandudzika. Transformer yakanyudzwa nemafuta inoshandisa nzvimbo dzakawanda, kuisa panze kwakawanda.

Simba remagetsi re transformer rakaoma diki, mashandiro aro mukati meimba akawanda. Kana tichienzanisa nema transformer anonyudzwa mumafuta, ane amplitude yakaderera yemagetsi emheni, musoro wewave unononoka uye mukana wekurova mheni mudiki.

Matransformer akaoma anowanzo dzivirirwa nezvinodzivirira oxide yesimbi, izvo zvisingangogumiri pakuderedza simba remhepo, asiwo zvinoderedza simba remagetsi remukati.