Kufotokozera
Deta yayikulu yaukadaulo ya 10kA ZnO varistor yamkati pachimake
Chithunzi No. | ZnO varistor mkati core | Adavotera Voltage | MCOV(kV) | Impulse panopa yotsalira voteji | 2ms Rectangular current pulse kupirira | 4/10us Kupirira kwakukulu kwapano | ||
1/4us Lightning impulse current (kV) | 8/20 us Lightning impulse current (kV) | 30/60us Lightning impulse current (kV) | ||||||
1 | Φ44x90 | 3 | 2.55 | 11.3 | 9 | 8.9 | 250 | 100 |
2 | Φ44x120 | 6 | 5.1 | 22.6 | 18 | 16.8 | 250 | 100 |
3 | Φ44x120 | 9 | 7.65 | 33.7 | 27 | 23.8 | 250 | 100 |
5 | Φ44x150 | 10 | 8.4 | 36 | 30 | 23 | 250 | 100 |
6 | Φ44x150 | 11 | 9.4 | 40 | 33 | 27 | 250 | 100 |
7 | Φ44x150 | 12 | 10.2 | 42.2 | 36 | 30 | 250 | 100 |
8 | Φ44x180 | 15 | 12.7 | 51 | 45 | 38.5 | 250 | 100 |
9 | Φ44x210 | 18 | 15.3 | 61.5 | 54 | 46.2 | 250 | 100 |
10 | Φ44x240 | 21 | 17 | 71.8 | 63 | 54.2 | 250 | 100 |
11 | Φ44x270 | 24 | 19.5 | 82 | 72 | 62 | 250 | 100 |
12 | Φ44x300 | 27 | 22 | 92 | 81 | 69.8 | 250 | 100 |
13 | Φ44x330 | 30 | 24.4 | 102 | 90 | 79 | 250 | 100 |
14 | Φ44x330 | 33 | 27.5 | 112 | 99 | 86.7 | 250 | 100 |
15 | Φ44x360 | 36 | 29 | 123 | 108 | 92.4 | 250 | 100 |
Zindikirani: Titha kupanga ndikupanga zinthu molingana ndi zomwe kasitomala akufuna.
Kuchuluka kwamagetsi mumagetsi kumatha kuchitika chifukwa cha mphezi kapena kusintha ntchito.Ma overvoltages awa amatha kufikira ma amplitudes owopsa a zida zamagetsi.Kuteteza zida zamagetsi zamagetsi ndikuwonetsetsa kuti zikugwira ntchito zachuma komanso zodalirika, zomangira ma opaleshoni zimagwiritsidwa ntchito pafupifupi mitundu yonse yamagetsi amagetsi.Zomangamanga za Gapless zinc oxide (ZnO) zimagwiritsidwa ntchito kwambiri.Ma surge arresters nthawi zambiri amalumikizidwa pakati pa gawo ndi ma terminals.Amachepetsa mulingo wamagetsi pazida monga zosinthira pansi pamlingo wopirira.
Axis ya nthawi imagawidwa m'mitundu yambiri ya mphezi mu microsecond, kusintha kuchuluka kwamagetsi mu millisecond ndi overvoltage kwakanthawi mu sekondi.Mu mphezi overvoltage ndi kusintha overvoltage osiyanasiyana, kukula kwa overvoltage akhoza kufika angapo pa unit ngati dongosolo popanda womanga chitetezo.Arrester atha kuchepetsa kuchulukira kwamagetsi pansipa kupirira voteji ya zida.Chodabwitsa ichi chikuwonetsa bwino kufunikira kwa zomangira chitetezo cha mphezi overvoltage.
Kupanga kwa Zinc Oxide Surge / Lightening Arrester:
Kumanga kwa ZnO Lightening Arresters ndikosavuta.Amakhala ndi nyumba yotsekereza yomwe imapangidwa ndi zadothi ndipo gawo lamkati limapangidwa ndi midadada ya ZnO monga momwe tawonetsera pachithunzi pansipa.
ZnO block imapereka mawonekedwe a Voltage- Panopa omwe si a mzere omwe amagwira ntchito yofunika kwambiri poteteza kuti asawonongeke.Chifukwa chake titha kunena kuti block ya ZnO ili ndi resistivity yopanda liner.
Mawonekedwe Amakono a Zno Block:
Chithunzi pansipa chikuwonetsa mawonekedwe a VI a chinthu cha ZnO omwe amagawidwa m'zigawo zitatu, kukhala chigawo chotsika (A), chigawo chogwirira ntchito (B) ndi chigawo chamakono (C).