Molemo oa EC Insulators

Setšoantšo sa No. | ZnO varistor e ka hare ea mantlha tlhaloso | Rated Voltage (kV) | MCOV(kV) | Impulse current residual voltage | 2ms Rectangular current impulse standstand (A) | 4/10us Boemo bo phahameng ba hona joale ba tšusumetso (kA) | ||
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 |
Tlhokomeliso: Re ka rala le ho etsa lihlahisoa ho latela litlhoko tse khethehileng tsa bareki.
Li-voltage tse fetang tsamaisong ea matla li ka hlaha ka lebaka la lehalima kapa ts'ebetso ea switching. Li-overvoltages tsena li ka fihla ho li-amplitudes tse kotsi bakeng sa lisebelisoa tsa tsamaiso ea matla. Ho sireletsa sistimi ea lisebelisoa tsa motlakase le ho netefatsa ts'ebetso ea moruo le e ts'epahalang, li-surgeons li sebelisoa hoo e batlang e le mefuta eohle ea marang-rang a matla a motlakase. Gapless zinc oxide (ZnO) li-surge arresters li sebelisoa haholo. Li-surge arresters hangata li hokahanngoa pakeng tsa li-fase le li-terminals tsa fatše. Ba fokotsa boemo ba voltage ho lisebelisoa tse kang li-transformer tse ka tlase ho boemo ba motlakase.
Axis ea nako e arotsoe ka mefuta e mengata ea ho fetella ha lehalima ho microsecond, ho fetola overvoltage ho millisecond le overvoltage ea nakoana motsotsoana. Ka lehalima overvoltage le switjha overvoltage mefuta e fapaneng, boholo ba overvoltage ka fihla tse 'maloa ka yuniti haeba tsamaiso e se nang tšireletso ea ho ts'oara. Arrester e ka fokotsa overvoltage ka tlase ho mamella voltage ea lisebelisoa. Ketsahalo ena e bontša ka ho hlaka bohlokoa ba ho ts'oara tšireletso ea lehalima overvoltage.
Ho hahoa ha Zinc Oxide Surge / Lightening Arrester:
Ho hahoa ha ZnO Lightening Arresters ho bonolo haholo. Li na le ntlo e sireletsang e entsoeng ka porcelain le kholomo e ka hare e entsoe ka li-blocks tsa ZnO joalokaha ho bontšitsoe setšoantšong se ka tlase.
ZnO block e fana ka Voltage- Litšobotsi tsa hajoale tse se nang moeli tse sebeletsang sepheo sa mantlha sa ts'ireletso ho tsoa ho overvoltage. Kahoo re ka bolela hore block ea ZnO e na le "non-liner resistivity".
Litšobotsi tsa Hona Joale tsa Voltage tsa Zno Block:
Setšoantšo se ka tlase se bontša litšobotsi tsa VI tsa ZnO element tse arotsoeng ka libaka tse tharo, e leng sebaka se tlaase sa hona joale (A), sebaka sa ts'ebetso (B) le sebaka se phahameng sa hona joale (C).
