1.Summary
ZYF-12 high voltage AC automatic sectionalizer is a switching device which is capable to trigger automatic breaking in the case of loss of voltage or current, record the faulty line and the times of faulty current occurrence, and implement automatic breaking in the case of loss of voltage or current after performing the specified times of settings by working together with the primary switch at the power side. It is a HV switching device which can perform breaking and making operations according to the predefined making-breaking sequence and carry out subsequent resetting or locking operation.
This product integrates a variety of functions such as measurement, control, monitoring, communication and remote operation, featuring a high level of integration, flexible configuration and friendly HMI. Applicable to simple or sophisticated distribution lines, it not only helps realize the basic functions of automatic distribution power network without background, but also can be used as the terminal of the distribution power network with background, a basic hardware device in the power system automation for ensuring high stability and reliability of the power system.

2.Service Environment
·The height above sea level is not greater than 2000m;
·The ambient temperature upper limit is +70℃, lower limit -45℃;
·The wind pressure does not exceed 700Pa(wind speed 34m/s) ;
·There is no regular violent vibrations;
·Dirtiness class: Ⅲ class;
Note: If there are special service conditions, please declare that special-purpose under consulting.

3. Sectionalizer Main Parameters
3.1 Rated technical parameter of the sectionalizer:

4. Function characteristic of the controller
·Voltage-Time: Based on the length of loading, lost voltage, the voltage -time intelligent segmentation controller carries out relative action, such as switch in for loading, switch off for lost voltage (or closedown), and the specific functions can be set.
·Over-Current pulse count: The over-current pulse count type intelligent segmentation controller can remember the wrong current times of preceding stage switch equipment and cut off the line with the electricity grid when over the pre-setting on-off times, realize the function of isolation fault district and recovering the power supply for non-fault district automatically.
·Display function: Display the real-time voltage, electric current wave form, simple and convenient for users to operate.
· Measuring function: Measure the data such as the voltage, electric current, etc. in real time. Simultaneously display the state of the present switch at the same time.
· Protecting function: Have quick-disconnection, time limit quick-disconnection, time limit or inverse time over-current protection functions. Have many inverse time curves, the electric current value can be adjusted in succession.
· Recording function：Can record various kinds of movement information, detailed record time, trouble, etc. and display the information on the screen.
·Communication function：Communication function: Have the RS485/RS422 communication ports, to realize four remote functions, namely remote control, tele-metering, tele-signalling, remote-adjusting.
·Control function: Possess the reserve power output function, even in case of the power network cutting out, can still operate many times switch-on and off operation, to realize the power protection operation by the equipment.

5.The main technical parameters of the controller
·Working voltage / frequency: AC220V/50Hz;
·Output voltage / frequency: AC220V/50Hz;
·Output Capacity：≥600W；
·The adjustable limit of the over-current: 0- 99.99A is adjustable in succession (the secondary side value of the electric current transformer measuring);
·The adjustable limit of the quick-disconnection: 0- 99.99A is adjustable in succession (the secondary side value of the electric current transformer measuring);
·The accuracy of the analog measurement: ≤±1%;
·Error of the delay time: ≤±15mS;
·The time limit selection: Optional definite-time and inverse time limit.
·Remote control distance：≥30 meters.

Note:1, user can set the value separately according to actual conditions, set the parameter please consult the service manual of the recloser controller.
2, after setting the value, need to shut off the keyboard, the setting can be refreshed.
3, the definite-time limit and the inverse time limit, cannot choose these two kinds of protection functions at the same time.