Sei musimboti wesimbi we transformer uchifanira kudzikwa? Yakapindurwa nefekitari yepamusoro yetransformer muChina

Kazhinji inoshandiswa transformer moyos anowanzo kugadzirwa nesilicon simbi mapepa. Silicon simbi imhando yesimbi ine silicon (silicon inonziwo silicon), uye iyo silicon yemukati i0.8 kusvika 4.8%. Silicon simbi inoshandiswa sechinhu dare musimboti wetransformer nekuti silicon simbi pachayo chinhu chine magineti chine simba remagineti permeability. Mune coil ine simba, inogona kugadzira yakakura magineti induction intensity, nekudaro ichidzikisa huwandu hweshanduko.

Isu tinoziva kuti iyo chaiyo transformer inogara ichishanda mu AC state, uye simba kurasikirwa haisi chete mukupikisa kwecoil, asiwo mune dare core magnetized by the alternating current. Simba kurasikirwa musimbi yesimbi inowanzonzi “iron kurasikirwa”. Kurasikirwa kwesimbi kunokonzerwa nezvikonzero zviviri, imwe “hysteresis loss” uye imwe “eddy current loss”.

Hysteresis kurasikirwa ndiko kurasikirwa kwesimbi kunokonzerwa nehysteresis panguva yemagnetization maitiro eiyo iron core. Ukuru hwekurasikirwa uku hunoenderana nenzvimbo yakakomberedzwa neiyo hysteresis loop yezvinhu. Iyo hysteresis loop yesilicon simbi yakamanikana uye idiki, uye hysteresis kurasikirwa kwesimbi yesimbi ye transformer idiki, iyo inogona kuderedza zvakanyanya chizvarwa chekupisa.

Sezvo silicon simbi ine mabhenefiti ari pamusoro, wadii kushandisa chidimbu chesilicon simbi semusimboti wesimbi, asi wochigadzira kuita pepa?

Izvi zvinodaro nekuti sheet iron core inogona kuderedza imwe mhando yekurasikirwa nesimbi – “eddy ikozvino kurasikirwa”. Kana iyo transformer iri kushanda, pane inochinjana ikozvino mukoiri, uye iyo magineti inoyerera yainoburitsa ndeyechokwadi kuchinjana. Uku kushanduka kwemagineti kunokonzera ikozvino mukati mepakati. Ikozvino yakakonzerwa inogadzirwa musimbi core inotenderera mundege perpendicular kune kutungamira kwemagineti flux, saka inonzi eddy current. Eddy ikozvino kurasikirwa kunopisawo musimboti. Kuti uderedze kurasikirwa kwazvino, iyo simbi yesimbi ye transformer yakaturikidzana nesilicon simbi mashizha akavharidzirwa kubva kune mumwe nemumwe, kuitira kuti eddy ikozvino ipfuure nepakati diki chikamu chemuchinjiko mudiki uye refu redunhu, kuti iwedzere kuramba. ye eddy ikozvino nzira; panguva imwecheteyo, iyo silicon musilicon simbi inoita Iyo yakawedzera resistivity yezvinhu inoitawo kuderedza eddy currents.

Sezvo musimboti wesimbi we transformer, inotonhora-yakakungurutswa silicon simbi mapepa ane ukobvu hwe 0.35 mm anowanzo kusarudzwa. Maererano nehukuru hwesimbi inodiwa, inotemwa kuita zvidimbu zvirefu, uye zvino inopindirana mu “zuva” kana “muromo” chimiro. Tichitaura, kuti uderedze eddy ikozvino, iyo yakatetepa kukora kwesilicon simbi sheet uye yakatetepa mitsetse yakatsetseka, zviri nani mhedzisiro. Izvi hazvingodzikisi kurasikirwa kwazvino uye kukwira kwekushisa, asi zvakare kuchengetedza zvinhu zvinoshandiswa kune silicon simbi mashiti. Asi muchokwadi pakugadzira silicon simbi sheet core. Kwete kungotanga kubva pane zvakataurwa pamusoro apa zvakanaka zvinhu, nekuti kugadzira iyo simbi musimboti nenzira iyoyo kuchawedzera zvakanyanya maawa-awa uye zvakare kuderedza inoshanda muchinjiko-chikamu chesimbi core. Naizvozvo, kana uchishandisa silicon simbi mapepa kugadzira transformer cores, zvinodikanwa kuti uenderere mberi kubva kune chaiyo mamiriro, kuyera zvakanakira nezvayakaipira, uye sarudza yakanakisa saizi.