1.Summary
ZCW-12 Outdoor high-voltage vacuum automatic recloser (hereafter referred to as recloser): this is a new-type recloser combined by the vacuum circuit breaker and the recloser controller. The computer-based protecting functions of quick-disconnection, time delay quick-disconnection, and over-current protection. Flexible value setting, time delay setting make the users can set up definite value and delay time, and automatic reserve protecting value switching function, the recloser controller has the maximum of 3 times to reset the controller, and choose the reclosing times and intervals freely.
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.Recloser Main Parameters
3.1 Rated technical parameter of the recloser
No. |
Project |
Unit |
Data |
|
1 |
Rated voltage |
kV |
11 |
|
2 |
Rated current |
A |
630 |
|
3 |
Lightning impulse withstand voltage test (Peak value) |
kV |
75 |
|
4 |
1min power frequency withstand voltage |
42 |
|
|
5 |
Rated short-circuit breaking current |
kA |
20 |
|
6 |
Rated closing current ( Peak value) |
50 |
|
|
7 |
Rated peak withstand current |
50 |
|
|
8 |
Rated short time withstand current |
20 |
|
|
9 |
Rated short-circuit keeping time |
s |
4 |
|
10 |
Rated frequency |
Hz |
50 |
|
11 |
Rated operate sequence |
|
Switch-off - 0.3s – switch-on/off- 180s – switch-on/off(the electronic device) |
|
12 |
Rated Short-circuit Current On and Off Times |
Times |
30 |
|
13 |
Mechanical life-span |
10000 |
|
|
14 |
Rated working voltage (closing and switch-off coil) |
V |
AC220 |
|
15 |
Rated current of release over-current |
A |
5 |
|
16 |
Current ratio of the current transformer |
|
200/5,400/5,630/5, |
|
17 |
Permit abrasion total thickness of active and static contactor |
mm |
3 |
|
18 |
Quality |
kg |
160 |
4. Function characteristic of the controller
·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.
·Reclosing function: Have a typical "switch-off - t1 – switch-on/switch-off - t2 –switch-on/switch-off - t3 –switch-on/switch-off - lock " performance characteristic. Reclosing time: Can be set freely 3 times, the relcosing interval can be set freely. Also can choose the pre-acceleration, after acceleration and sequence arrangement freely.
· Recording function：Can record various kinds of movement information, detailed record time, trouble, etc. and display the information on the screen.
·Closing/Locking：When the switches closing to the trouble point, the controller will break the switches automatically and lock the switches.
·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 reclosing time: 0- 3 times;
·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.