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ionic auto.
F-OCB series automatic circuit breakers can be used in overhead distribution lines as well as distribution substation applications.
Suitable for all voltage classes from 11kV to 38kV in 50/60Hz power system. Rated current up to 1250A.
F-OCB series automatic recloser integrates the functions of control, protection, measurement, communication and fault diagnosis.
Protection, on-line monitoring of closing or opening.
service environment
1. Air temperature: maximum temperature: +85°C; minimum temperature: -45°C
2. Humidity: monthly average humidity 95%; daily average humidity 90%.
3. Altitude: Maximum installation altitude: above 2500m.
4. The surrounding air is not polluted by corrosive, combustible gas, steam, etc.
5. Air pressure in summer is 84.7Kpa (635mmHg), air pressure in winter is 85.6Kpa (642mmHg), maximum wind speed is 34m/s
6. Humidity 13mg, vapor pressure 17mm/Hg. No frequent violent vibrations.
dedication
With optional installation type classes:
Single-phase vacuum reclosers and three-phase vacuum reclosers. With optional relay protection curve for users to choose: Instantaneo
our overcurrent protection.
Timing overcurrent protection.
Negative sequence overcurrent protection. Directional overcurrent protection (*).
Overvoltage protection/undervoltage protection. More relay functions can be customized.
You can choose local or remote mode.
There are optional communication protocols and I/O ports for users to choose: support RS-232 and RS-485 ports.
DNP3.0 communication protocol support (*). Modbus communication protocol is optional (*). IEC 60870-5-101 communication protocol
support.
IEC 60870-5-104 communication protocol support. (*).
The recloser can communicate in English or Chinese (*) via GPRS (or GSM) modem. There are functions for users to choose.
Rated current, system phase current.
Rated voltage, system phase voltage, secondary low voltage power supply voltage. frequency, power (kWh), reactive power (kV arh),
power factor.
Optional reclosing interval available for user pre-programming: supports setting of reclosing times.
Support dead time setting.
With event recording function: SOE 1000 operation records.
Fault records and normal operation records.
Note: (*) indicates that it should be customized by the manufacturer if required.