Incazelo
Idatha enkulu yobuchwepheshe ye-10kA ZnO varistor core yangaphakathi
Umfanekiso No. | I-ZnO varistor core yangaphakathi | I-Voltage elinganiselwe | I-MCOV(kV) | Impulse current residual voltage | 2ms ukumelana kwamanje konxande | 4/10us Ukumelana nomfutho ophezulu wamanje | ||
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 |
Qaphela: Singaklama futhi senze imikhiqizo ngokuvumelana nezidingo eziqondile zekhasimende.
Ama-voltage angaphezu kwamandla ohlelweni lwamandla kungenzeka ngenxa yombani noma ukushintsha ukusebenza.Lawa ma-overvoltages angafinyelela kuma-amplitudes ayingozi kumishini yesistimu yamandla.Ukuze kuvikelwe imishini kagesi yesistimu kanye nokuqinisekisa ukusebenza kwezomnotho nokuthembekile, izibambisi zokuhlinza zisetshenziswa cishe kuzo zonke izinhlobo zenethiwekhi yamandla kagesi.Izibambisi zokuhlinza ze-Gapless zinc oxide (ZnO) zisetshenziswa kakhulu.Izibambisi zokuhlinza zivame ukuxhunywa phakathi kwamatheminali esigaba naphansi.Bakhawulela izinga le-voltage emishinini efana nama-transformer angaphansi kwezinga lokumelana ne-voltage.
I-axis yesikhathi ihlukaniswe ngobubanzi bokugcwala kombani ku-microsecond, ishintsha i-overvoltage ku-millisecond kanye nokugcwala ngokweqile kwesikhashana okwesibili.Ku-overvoltage yombani kanye nobubanzi be-overvoltage yokushintsha, ubukhulu bokugcwala ngokweqile bungafinyelela amaningana ngeyunithi ngayinye uma isistimu ingenaso isivikelo sokubopha.I-Arrester ingakhawulela i-overvoltage ngezansi imelana ne-voltage yemishini.Lesi sigameko sikhombisa ngokusobala ukubaluleka kwezibambi zokuvikela umbani.
Ukwakhiwa kweZinc Oxide Surge / Lightening Arrester:
Ukwakhiwa kwe-ZnO Lightening Arresters kulula kakhulu.Zihlanganisa izindlu ezivikelayo ezenziwe nge-porcelain futhi ikholomu yangaphakathi yenziwe ngamabhulokhi e-ZnO njengoba kukhonjisiwe kumfanekiso ongezansi.
Ibhulokhi ye-ZnO ihlinzeka nge-Voltage- Izici zamanje ezingezona umugqa ezisebenzela inhloso enkulu yokuvikela ekugedeni ngokweqile.Ngakho-ke singasho ukuthi i-ZnO block ine-resistivity engeyona i-liner.
I-Voltage Yamanje Izimpawu ze-Zno Block:
Umfanekiso ongezansi ubonisa izici ze-VI ze-elementi ye-ZnO ezihlukaniswe izifunda ezintathu, okuyisifunda samanje esiphansi (A), indawo yokusebenza (B) kanye nesifunda samanje esiphezulu (C).