Kusiyana pakati pa zinc oxide arrester ndi elbow arrester

Kusiyana pakati pacholetsa zinki okusayidindichomangira chigongono

1. (1) Mfundo yogwirira ntchito ya chomangira cha mtundu wa valavu:
Pamene dongosololi lili bwino, kusiyana kwa mphamvu ya spark kumachotsa kukana kwa valavu kuchokera ku basi yogwira ntchito, kuti isatenthe kukana kwa valavu chifukwa cha mphamvu yamagetsi yomwe imapangidwa mu kukana kwa valavu ndi mphamvu yogwira ntchito.
Mphamvu yamagetsi pa basi yogwira ntchito ikapitirira mphamvu yake yamagetsi yosweka, mpata wa spark udzasweka ndipo udzatsogolera mphamvu ya mphezi kulowa m'dziko lapansi kudzera mu mphamvu ya valavu. Panthawiyi, mphamvu ya mphamvu ya mphamvu ya valavu idzachepa yokha kuti ichepetse mphamvu yamagetsi kumapeto kwake awiri. Kupanikizika kotsala kumapangidwira.
Mphamvu ya mphezi ikatha, mphamvu yamagetsi yomwe imagwira ntchito pa kukana kwa mbale ya valve ndi mphamvu yamagetsi. Panthawiyi, mphamvu yamagetsi ya kukana kwa mbale ya valve idzawonjezeka yokha, zomwe zimachepetsa mphamvu yamagetsi yomwe imayenda mozungulira kuti arc izimitsidwe mwachangu komanso modalirika.

(2) Chogwirizira ma valve chimapangidwa ndi mipata yambiri ya spark ndi ma valve plate resistor angapo motsatizana.
Mtunda pakati pa danga la spark ndi wochepa, mphamvu yamagetsi ndi yofanana ndi mphamvu yamagetsi yofanana, khalidwe la volt-second ndi losalala, ndipo kulumikizana kwa insulation ndikosavuta kuzindikira. Kuphatikiza apo, mipata ingapo imapangitsa arc kugawidwa magawo pamene mphamvu ikupitirira kuyenda. Poyerekeza ndi arc yayitali, arc yayifupi ndi yosavuta kudula, ndipo mphamvu yobwezeretsa mphamvu ya insulation ya gap imawonjezeka.
Kukana kwa ma valve plate kumapewa mafunde odulira omwe sakugwirizana ndi kutenthetsa. Kusalumikizana kwake kumapangitsa kuti iwonetse kukana kochepa ikadutsa mphamvu ya mphezi kuti ichepetse mphamvu yotsalira ya chogwirira ndikuwonjezera chitetezo; ikadutsa mphamvu ya ma frequency freewheeling, imawonetsa kukana kwakukulu ndipo mphamvu ya ma volteji imakhala yokhazikika kuti ichepetse mphamvu ya ma frequency freewheeling ndikuwonjezera mphamvu yozimitsa moto.

2. (1) Mfundo yogwirira ntchito ya zinc oxide arrester:
Pogwiritsa ntchito mphamvu ya magetsi ogwirira ntchito, mphamvu yamagetsi yomwe ikuyenda kudzera mu valavu ya ZnO ndi yochepera 1mA (gawo lalikulu ndi mphamvu yamagetsi), yomwe ndi yofanana ndi insulator ndipo sidzawotcha valavu, kotero mphamvu yamagetsi yogwirira ntchito imatha kuchotsedwa popanda kusiyana kwa mndandanda.
Pamene magetsi ogwiritsidwa ntchito pa valavu ya ZnO apitirira mtengo winawake (voltage yoyamba yogwiritsira ntchito U1mA), "pa" idzachitika. Pambuyo pa "pa", kukana kwa valavu ya ZnO kumakhala kochepa kwambiri, ndipo magetsi otsalawo amagwirizana ndi mphamvu yamagetsi yomwe ikuyenda mkati mwake. Sizikufunikira kwenikweni.
Pamene magetsi ogwiritsidwa ntchito atsika pansi pa magetsi ogwirira ntchito, "pa" ya mbale ya valve ya ZnO imathetsedwa, zomwe ndi zofanana ndi insulator, kotero palibe mphamvu yozungulira yozungulira.
Ichi ndichifukwa chake MOA imatha kuyenda bwino popanda kugwedezeka mozungulira. (Mphepo yamagetsi imakhala chotetezera magetsi kale, kotero mphamvu yamagetsi yokha ndiyo imadutsa mu mbale ya valavu ya ZnO)
Poyerekeza ndi ma valve a silicon carbide SiC, ma valve a ZnO ali ndi makhalidwe abwino a nonlinear volt-ampere.

(2) Poyerekeza ndi chomangira chachikhalidwe chopangidwa ndi SiC valve disc ndi series gap, chomangira chopanda zinki oxide chili ndi ubwino wotsatira:
①Kapangidwe kosavuta, koyenera kupanga zinthu zambiri zokha, kakang'ono, kopepuka komanso kotsika mtengo.
② Chitetezo chapamwamba kwambiri. Popeza valavu ya ZnO ili ndi mawonekedwe abwino kwambiri a volt-ampere, mphamvu yotsalira imakhala yotsika; imatha kutulutsa mphamvu nthawi yonse ya overvoltage, ndipo palibe spark, kotero palibe kuchedwa kwa nthawi yotulutsa, ndipo ili ndi mawonekedwe abwino a steep wave response, makamaka yoyenera kuteteza GIS ya malo osungira mpweya ndi machitidwe a DC.
③Luso lamphamvu lotha kupirira zochitika mobwerezabwereza, limangoyamwa mphamvu yopitirira muyeso, palibe chifukwa choyamwa mphamvu yozungulira.
④Kuchuluka kwa madzi oyenda. Kuchuluka kwa madzi oyenda pa dera lililonse la valavu ya ZnO ndi kuwirikiza kanayi mpaka kasanu kuposa valavu ya SiC. Ingagwiritsidwe ntchito ngati chitetezo chothandizira kuti magetsi asamayende bwino mkati.
⑤Kukana bwino kutayira utoto. Popeza palibe kusiyana kwa mndandanda, vuto la mphamvu yosakhazikika yotulutsa mpweya wa mndandanda chifukwa cha kuipitsidwa kosagwirizana pamwamba pa chivundikiro cha porcelain lingapeweke, ndipo ndikosavuta kupanga zoletsa kuipitsidwa ndi zotsukira zamoyo. (Sizikhudzidwa ndi kuipitsidwa kwa pamwamba)