35KV column vacuum circuit breakers reliable quality, cost-effective, please contact us Ningbo-vibration Vacuum Electric Co., Ltd. is China's professional development, production and sales of vacuum circuit breakers, well-known enterprises vacuum interrupter and vacuum switches accessories and equipment. AB-3S / 40.5 type permanent vacuum circuit breaker with a unique design of the permanent mechanism and high reliability intelligent controller. The device is mainly used in medium-voltage overhead line grid, as a sub, load current, overload current, short-circuit current. Specific functions are as follows: 2.0 Real-time monitoring of real-time monitoring of A, B, C and zero-sequence current value, a phase PT voltage. 2.1 with UPS function with UPS function; exchange loss of power can be combined or more points 50 times, to ensure that work within 48 hours. 2.2 Definite time protection definite time protection according to the traditional three-current protection mode (quick break, limit speed off, over-current) is 2.3 Synthesis of zero sequence zero sequence protection function, alarm, action is optional. 2.4 reclosing function according to the number of pre-tuning multiple reclosing function. 2.5 hand function when closing event of failure manual closing, fails, the controller does not immediately disconnect lockout reclosing. 2.6 features the permanent anti-surge controller provides control panel operation, remote control opening and closing function. 2.8 communication function (reserved) and mobile communications products can achieve remote control. In order to achieve telemetry, remote adjustment, remote control, remote four remote functions. 2.9 LCD functionality for products tuning, setting various parameters intuitive view. 2.10 event logging function can record the most recent 255 events. 2.11 memory functions of the various set data memory unit automatically, 10 years is not lost. 2.12 Remote Communication detection function detects the current state of the switch, points, closing position. 2.13 Display automatic protection function button is pressed in the absence of the case, to protect the LCD, the display automatically turns off after three minutes, press any key to return the display to the main page. 2.14 standby power management function automatically saves standby power, in the absence of external power automatically turns off after 5 minutes battery power, you need to use to restore; automatic recovery after the call.