Isikhokelo seTransformer Electrostatic Shields (ii-E-shields)

Yintoni i-E-shield?
Ikhaka elisebenzisa umbane liphepha elincinci elinombane elingenamagnethi. Ikhaka linokuba yithusi okanye i-aluminium. Eli phepha lincinci lihamba phakathi kwee-windings eziphambili nezesibini ze-transformer. Iphepha kwikhoyili nganye liqhagamshelwa kunye ne-conductor enye ebopha kwi-chassis ye-transformer.

Zenza ntoni ii-E-shields kwi-transformers?
Ii-E-shields zithumela ukuphazamiseka kombane okuyingozi kude neekhoyili zetransformer kunye ne-elektroniki ezibuthathaka kwiinkqubo zombane. Oku kukhusela itransformer kunye nenkqubo eqhagamshelwe kuyo.
Makhe sijonge oku ngokweenkcukacha siqale ngezinto ezikhusela ii-E-shields kuzo.

Ukunciphisa
Iisekethe ezininzi zombane zanamhlanje ziphantsi koxinzelelo oludlulayo kunye nengxolo yemowudi. I-E-shield esezantsi iyanciphisa (iyanciphisa) olu phazamiseko.

Umfanekiso ongasentla ngasekhohlo ubonisa ukunyuka okuqhelekileyo kwe-voltage ye-transient. Olu hlobo lokunyuka okukhulu kwe-voltage yombane luvela kwizixhobo eziqhelekileyo zeofisi ezifana neekhompyutha okanye ii-photocopiers. Ii-inverters nazo zingumthombo oqhelekileyo we-transient spikes. Umfanekiso ongasekunene ubonisa umzekelo wengxolo ye-mode kwisekethe yombane. Ingxolo ye-mode ixhaphakile kwisekethe ze-elektroniki. Iinkqubo ezingasebenzi kakuhle ezine-cable shield engafanelekanga zihlala zinengxaki yengxolo ye-mode.
Ngoku makhe sijonge indlela i-E-shield ejongana ngayo nezi ngxaki.

Ukudibanisa okunamandla
I-E-shield esekwe phantsi inciphisa ukudibana okunamandla phakathi kwe-primary windings kunye ne-secondary windings. Endaweni yokudibana ne-secondary winding, i-primary windings idibana ne-E-shield. I-E-shield esekwe phantsi inika indlela ephantsi ye-impedance eya emhlabeni. Ukuphazamiseka kwe-voltage kudluliselwa kude ne-secondary winding. Oku kusebenza nakwicala elinye le-transformer (lesibini ukuya kwelesibini).

Iispikes zexesha elifutshane kunye nengxolo yemowudi zingonakalisa ii-transformers kunye nezinye izixhobo zombane. Ikhaka le-electrostatic phakathi kweekhoyili ze-voltage ephezulu kunye neekhoyili ze-voltage ephantsi linciphisa ezo ngozi. Ingqwalasela ebalulekileyo xa unika amandla kwi-elektroniki ebuthathaka.

Imizekelo yeeTransformers ezisebenzisa i-E-shield
Iitransformer zeSolar kunye nezoMoya
Ukuphazamiseka kweHarmonic kunye nokutshintsha okukhethekileyo okuvela kwii-inverters zelanga kudluliselwa kwigridi yombane. Oku kuphazamiseka kwe-voltage kudala iziphumo ezifana ne-impulse kwi-HV winding etya igridi. Ii-spikes ze-overvoltage zesikhashana kwicala lombane zinokudluliselwa kwi-inverter. Ezi ziganeko ze-overvoltage zingonakalisa izinto ezibuthathaka ze-inverter. Ii-E-shields zikhusela zombini i-transformer, igridi, kunye ne-inverter.
Funda ngakumbi malunga nobukhulu be-solar transformer kunye neemfuno zoyilo.

Qhuba Isiguquli sokuZihlukanisas
Iitransformer ze-Drive isolation zakhiwe ukuze zikwazi ukumelana nokuphazamiseka kwe-voltage ephezulu (ii-harmonics). Ukuphazamiseka okunjalo kuvela kwizixhobo ezifana nee-motor drives (okanye ii-VFDs). Kungoko ke igama elithi "drive" livela egameni. Ukongeza kwii-harmonics, ii-motor drives zinokwazisa nezinye iingxaki ze-voltage (njengengxolo yemo). Kulapho i-E-shield ingena khona. Iitransformer ze-Drive isolation ziquka ubuncinci i-E-shield enye phakathi kwee-HV kunye nee-LV coils. Kungasetyenziswa nee-shields ezininzi. Ii-E-shields zinokubekwa phakathi kwee-inner coils kunye ne-core legs.
Ii-aplikeshini ezineengxaki ze-voltage (ezifana nee-spikes ezidlulayo kunye nengxolo yemowudi) ziyazuza kwi-transformer ene-E-shield. Ii-e-shields azibizi kakhulu, kwaye zibonelela ngembuyekezo ebalulekileyo kutyalo-mali apho imiba yomgangatho wamandla iyingozi.