| Customization: | Available |
|---|---|
| Breaking Capacity: | High Voltage Circuit Breakers |
| Operation: | Electric Type |
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Four-faith Smart Power strives to bring our customers the latest technology and competitive pricing and best service for distribution automatic.The F- OCB series automatic circuit re-closer can use on overhead distribution lines as well as distribution substation applications for all voltage classes 11kV up to 38kV at 50/60Hz power system. and it's rated current can reach 1250A.The F- OCB series automatic circuit re-closer integrates the functions of control, protection, measurement, communication, fault detection, on-line monitoring of closing or opening
1.Air temperature: Maximum temperature: +85ºC; Minimum temperature:-45ºC
2.Humidity: Monthly average humidity 95%; Daily average humidity 90% .
3.Altitude above sea level: Maximum installation altitude: 2500m or more higher.
4.Ambient air not apparently polluted by corrosive and flammable gas, vapor etc.
5.Summer barometric 84.7Kpa(635mmHg) Winter barometric 85.6Kpa(642mmHg) Max wind speed 34m/s
6.Humidity of 13mg and Vapour Pressure 17mm/Hg. No frequent violent shake.
| Item | Unit | Data | ||||
| Rated voltage | kV | 11/15 | 27 | 38 | ||
| Rated current | A | 400/630/800/1250 | ||||
| Rated frequency | Hz | 50/60 | ||||
| Rated short circuit breaking current | kA | 12.5/16/20/25 | ||||
| Rated short current switching current(peak) | kA | 31.5/40/50/63 | ||||
| Lightning impulse withstand voltage(peak) | kV | 95/110 | 125/165 | 170/200 | ||
| Rated peak value withstand current | kA | 31.5/40/50/63 | ||||
| 4S short time withstand current | kA | 12.5/16/20/25 | ||||
| Rated operating circulate | O-0.5S-CO-2S-CO-5S-CO | |||||
| Breaking current frequency under rated short circuit | time | 200 | ||||
| Mechanism life | time | 30000 | ||||
| Secondary loop 1 min power frequency withstand | kV | 2 | ||||
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