1. Lub luag haujlwm tseem ceeb ntawm Transformer Iron Core
(1)Tsim kom muaj txiaj ntsig qis -reluctance magnetic circuit:Qhov no yog lub luag haujlwm tseem ceeb ntawm cov tub ntxhais hlau. Thaum alternating tam sim no ntws los ntawm thawj winding, nws generates alternating magnetic flux. Cov tub ntxhais hlau muab txoj hauv kev yooj yim magnetizable, zoo heev txhim kho qhov sib nqus lub zog thiab kaw feem ntau ntawm cov flux (lub ntsiab flux) nyob rau hauv txoj kev siab no - permeability, zoo coupling nws mus rau theem nrab winding. Yog tsis muaj cov tub ntxhais hlau, ntau qhov flux yuav xau mus rau hauv huab cua (qhov chaw sib nqus tsis txaus siab heev), ua rau muaj kev hloov pauv hluav taws xob tsawg heev.
(2)Txhim kho electromagnetic induction efficiency:Vim muaj cov tub ntxhais hlau, muaj zog hlau nplaum ntau tuaj yeem tsim nyob rau hauv lub winding nyob rau hauv tib lub excitation tam sim no (tsis muaj -load tam sim no). Qhov no txhais tau hais tias kom tsim kom muaj cov flux txaus rau lub zog hloov pauv, tus naj npawb ntawm cov kev hloov pauv thiab cov excitation tam sim no yuav tsum raug txo kom tsawg, ua kom muaj txiaj ntsig zoo ntawm cov khoom siv hluav taws xob thiab txo qhov loj thiab cov nqi tsim khoom.
(3)Muab kev txhawb nqa kev tsim kho:Cov tub ntxhais hlau ua raws li cov neeg kho tshuab pob txha ntawm lub transformer, txhawb nqa lub hauv paus thiab theem nrab windings, tswj lawv txoj hauj lwm stability, thiab tiv thaiv lub electromagnetic zog uas yuav tshwm sim thaum lub sij hawm ua hauj lwm (xws li lub loj heev electrodynamic rog thaum lub sij hawm luv luv Circuit Court).
2. Kev ua tau zoo ntawm cov khoom siv tseem ceeb
(1) High Magnetic Permeability: Qhov no yog tus yam ntxwv tseem ceeb tshaj plaws. High magnetic permeability txhais tau hais tias cov khoom siv tau yooj yim magnetized, tso cai rau muaj zog sib nqus induction yuav tsum generated nrog ib tug me me magnetic teb zog, li no txo excitation tam sim no thiab txhim kho efficiency.
(2) High Electrical Resistivity: Thaum cov tub ntxhais nyob rau hauv ib qho chaw sib nqus sib nqus, cov eddy tam sim no raug ntxias sab hauv. Eddy tam sim no ua rau lub zog poob (eddy tam sim no poob) thiab cua sov. Kev tiv thaiv hluav taws xob siab tuaj yeem txo qhov tsim cov eddy tam sim no thiab txo qhov poob ntawm qhov no.
(3) Tsawg Coercivity: Coercivity ntsuas seb nws nyuaj npaum li cas los demagnetize cov khoom. Tsawg coercivity txhais tau hais tias lub voj hysteresis yog nqaim thiab ntxhab, ua kom cov hlau nplaum thiab demagnetization yooj yim dua thiab ua rau tsis muaj hysteresis poob. Hysteresis poob yog lwm yam loj ntawm lub zog poob hauv cov tub ntxhais.
(4) High Saturation Sib Nqus Induction: High saturation magnetic induction txhais tau hais tias cov tub ntxhais tsis tshua muaj peev xwm saturate nyob rau hauv cov hlau nplaum muaj zog, tso cai rau cov transformers tau tsim ntau compactly (hloov tib lub hwj chim nrog tus ntoo khaub lig me me -sectional cheeb tsam), los yog tso zis ntau zog nyob rau hauv tib lub ntim.
3.Kev xaiv cov khoom siv tseem ceeb
(1)Cov khoom siv tseem ceeb: Silicon Steel (Electrical Steel)
Qhov no yog tam sim no feem ntau siv dav thiab paub tab cov khoom siv hauv lub zog transformers.
Kev sib xyaw:Ntxiv 2.5% ~ 4.5% silicon rau cov hlau ntshiab.
Muaj nuj nqi ntawm Silicon Ntxiv:
- - Ua kom muaj kev tiv thaiv ntau ntxiv: Ntxiv silicon nce qhov kev tiv thaiv ntawm cov hlau ntau zaus, txo qis eddy tam sim no losses.- Pab txo qis coercivity: Silicon tuaj yeem cuam tshuam qhov tsis zoo ntawm cov khoom tsis zoo xws li carbon thiab nitrogen, purifying thiab enlarging cov nplej, yog li txo qis hysteresis poob.
- - Mitigates aging: Silicon slows down the aging of iron (deterioration of magnetic properties over time).
Daim ntawv txheej txheem:Silicon steel ntawv yog dov rau hauv daim ntawv laminated, nrog rwb thaiv tsev txheej siv ntawm cov ntawv. Cov qauv laminated no txwv tsis pub cov eddy tam sim no rau txhua daim ntawv nyias, ua kom muaj kev tiv thaiv raws li txoj kev eddy tam sim no, uas yog ib qho tseem ceeb tsim feature rau txo eddy tam sim no poob.
(2)Advanced Materials: Amorphous alloys
Yam ntxwv:Siv ultra- cov txheej txheem ua kom txias sai, cov hlau molten txias sai heev uas cov atoms tsis muaj sij hawm los teeb tsa hauv cov qauv crystalline, tsim ib lub khob- zoo li amorphous qauv.
Qhov zoo:
- - Kev tiv thaiv siab heev: Kwv yees li 2-3 npaug siab dua li cov hlau silicon, ua rau tsis tshua muaj eddy tam sim no poob.
- - Tsawg coercivity: Hysteresis poob kuj tsawg heev.
Zuag qhia tag nrho:Tsis muaj-load poob (hlau poob) ntawm amorphous alloy core transformers yog 60% - 80% qis dua silicon steel transformers ntawm tib yam tshwj xeeb, ua rau lub zog- txuag cov nyhuv tseem ceeb heev.
Qhov tsis zoo:
- - Tsawg saturation magnetic flux ceev: Kwv yees li 80% ntawm silicon steel, uas yuav ua rau me ntsis loj thiab hnyav rau tib lub zog transformer.
- - Cov khoom siv tawv thiab nkig: nyuaj rau txheej txheem, txiav, thiab cua.
- - Tus nqi siab dua: Cov khoom siv thiab cov txheej txheem tsim khoom kim dua li cov hlau silicon.
Daim ntawv thov:Tshwj xeeb tshaj yog tsim nyog rau cov xwm txheej nrog lub sijhawm tsis ua haujlwm ntev thiab cov nqi qis, xws li cov kab sib chaws nyob deb nroog thiab cov khoom siv hluav taws xob faib rau cov khoom siv hluav taws xob, qhov twg lub zog -txuag qhov zoo tuaj yeem rov qab pib nqis peev tshaj qhov hloov pauv lub neej.
