Keystone
Metal oxide arrester is the most advanced over-voltage protector. By nuclear Heart devices using zinc oxide varistor, as compared with traditional silicon carbide surge arresters, surge arrester changed The volt-ampere characteristics, improved over-voltage Fow capacity, thus causing a fundamental change in arrester characteristics.
When the arrester in the normal working voltage, the current flowing through the arrester only microampere level, When subjected to over voltage, due to the nonlinear ZnO varistor, the current flowing through the arrester Instant thousands of amps, lightning arrester in the conduction state, the release of over-voltage energy, thusEffective to limit the over-voltage on the transmission and distribution equipment infringement.
Condition of use
| Serial number |
Condition of use |
| 1 |
Ambient temperature:-40ºC~40ºC; |
| 2 |
Elevation:1000-2000m(at high altitude should be ordered with registration); |
| 3 |
AC system frequency:50Hz or 60Hz; |
| 4 |
The long-term restrictions on the frequency of voltage arrester ounce of continuous operating voltage does not exceed arrester; |
| 5 |
Maximum wind speed:≤m/s; |
| 6 |
Seismic Intensity:≤7°; |
| 7 |
Dirty areas should be indicated. |
Type definition
Main technical parameters
Audited Supplier 
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