Yini i-E-shield?
Isihlangu se-electrostatic ishidi elincanyana elingenamagnetic conductive. Isihlangu singaba ithusi noma i-aluminium. Leli shidi elincanyana lingena phakathi kwe-transformer's primary and secondary windings. Ishidi kukhoyili ngayinye lixhuma kanye ne-conductor eyodwa ebophezela ku-chassis ye-transformer.
Enzani ama-E-shield kuma-transformer?
E-Izihlangu ziqondisa kabusha ukuphazamiseka kwamandla kagesi okuyingozi kude ne-transformer'amakhoyili kanye nezinto zikagesi ezizwelayo ezinhlelweni zikagesi. Lokhu kuvikela i-transformer kanye nesistimu exhunywe kuyo.
Ake sibheke lokhu ngokuningiliziwe siqale ngokuthi ama-E-shields avikela ini.
Ukunciphisa
Amasekhethi amaningi kagesi esimanje angaphansi kwe-spikes edlulayo kanye nomsindo wemodi. I-E-shield egxilile inciphisa (inciphisa) lokhu kuphazamiseka.
Isithombe esingenhla kwesokunxele sibonisa i-voltage spike evamile yesikhashana. Lolu hlobo lokwenyuka okubukhali kwamandla kagesi luvela ezintweni ezivamile zasehhovisi njengamakhompyutha noma amakhophi. Ama-inverters nawo angumthombo ojwayelekile wama-spikes adlulayo. Isithombe esingakwesokudla sibonisa isibonelo somsindo wemodi kusekethe kagesi. Umsindo wemodi ujwayelekile kumasekhethi kagesi. Amasistimu anezintambo ezingalungile anokuvikela ikhebula okungafanele ngokuvamile ahlushwa umsindo wemodi.
Manje ake sibheke ukuthi i-E-shield ibhekana kanjani nalokhu kuphazamiseka.
I-Capacitive Coupling
I-E-shield esekelwe phansi inciphisa ukuhlangana kwe-capacitive phakathi kwama-winding ayisisekelo nakwesibili. Kunokuba uhlangane nokuvunguza kwesibili, imibhangqwana ehamba phambili ene-E-shield. I-E-shield esekelwe ihlinzeka ngendlela ephansi yokungena emhlabathini. Iziphazamiso zamandla kagesi ziqondiswa kabusha kude namajika esibili. Lokhu kusebenza futhi ukusuka komunye umkhawulo we-transformer (yesibili kuya kweyinhloko).
Izipikhi ezidlulayo kanye nomsindo wemodi kungalimaza ama-transformer nezinye izinto zokusebenza zikagesi. Isivikelo sikagesi esiphakathi kwamandla kagesi aphezulu kanye namakhoyili kagesi aphansi sinciphisa izingozi ezinjalo. Ukucatshangelwa okubalulekile lapho kunikezwa amandla kuzinto zikagesi ezibucayi.
Izibonelo zama-Transformer Asebenzisa i-E-shield
Ama-Solar & Wind Transformers
Ukuphazamiseka kwe-Harmonic kanye nokushintshwa okukhethekile kusuka ku-solar inverters kudluliselwa kugridi yokusetshenziswa. Lokhu kuphazamiseka kagesi kudala imithelela efana ne-impulse ku-HV winding ephakela igridi. Ama-spikes e-overvoltage edlulayo ohlangothini lwensiza nawo angadlulela ku-inverter. Lezi zenzakalo ze-overvoltage zingalimaza i-inverter's izingxenye ezibucayi. Ama-E-shield ahlinzeka ngokuvikeleka kukho kokubili i-transformer, igridi, kanye ne-inverter.
Funda kabanzi mayelana nosayizi we-solar transformer kanye nezidingo zokuklama.
Shayela Isolation Transformers
Ama-transformer okuhlukanisa ama-Drive akhelwe ukumelana nokuphazamiseka kwe-voltage ephezulu (i-harmonics). Ukuphazamiseka okunjalo kubangelwa amathuluzi afana nama-motor drives (noma ama-VFD). Ngakho igama“shayela”egameni. Ngokungeziwe kuma-harmonics, ukushayela kwezimoto kungase futhi kwethule okunye ukuphazamiseka kwamandla kagesi (njengomsindo wemodi). Yilapho i-E-shield iqala khona ukudlala. Iziguquli zokuhlukanisa idrayivu zihlanganisa okungenani isivikelo se-E esisodwa phakathi kwamakhoyili e-HV kanye ne-LV. Izihlangu eziningi zingasetshenziswa futhi. Ama-E-hawu angabekwa phakathi kwamakhoyili angaphakathi nezitho zangaphakathi futhi.
Izinhlelo zokusebenza ezinokuphazamiseka kwamandla kagesi (njengama-spikes esikhashana nomsindo wemodi) zizuza ku-transformer ene-E-shield. Ama-E-shields awabizi, futhi anikeza imbuyiselo ebalulekile ekutshalweni kwezimali lapho izindaba zekhwalithi yamandla ziwusongo.
Isikhathi sokuthumela: Aug-08-2024