ZW43-12M outdoor high voltage permanent magnet vacuum circuit breaker-0
Scope of application
The permanent magnet switch is composed of three parts: vacuum switch body, single stable permanent magnet operating mechanism and intelligent controller. Therefore, it has a wide range of coordination and flexible and convenient action program setting mode, high working reliability and safety, and is a "mechanical integration" intelligent high-voltage switchgear with control and protection functions. The circuit breaker complies with technical standards such as GB1984-2003 "High Voltage AC Circuit Breaker", DL/T402-2007 "Technical Conditions for Ordering High Voltage AC Circuit Breaker" and DL/T403-2000 "Technical Conditions for Ordering 12KV~40.5KV High Voltage Vacuum Circuit Breaker".
Environmental conditions for use
◆Ambient air temperature: upper limit +40℃, lower limit -40℃;
◆Altitude: not more than 3000mm;
◆Wind pressure: no more than 700Pa [equivalent to wind speed 34m/s);
◆Air pollution level: no more than level IV;
◆Ice thickness: no more than 10mm;
◆Places without fire, explosion hazards, chemical corrosion and severe vibration.
Technical Parameters
|
Serial number |
Name |
Unit |
Data |
||
|
1 |
Rated voltage |
kV |
12 |
||
|
2 |
Rated insulation level |
1min power frequency withstand voltage |
Dry test (to ground, between poles/break) |
42/48 |
|
|
Wet test |
34 |
||||
|
Lightning impulse withstand voltage (peak value, pole-to-pole/break) |
75/85 |
||||
|
3 |
Rated current |
A |
630 |
||
|
4 |
Rated short-circuit breaking current |
kA |
20 |
||
|
5 |
Rated operating sequence |
|
O~0.3-CO-180S-COS |
||
|
6 |
Rated short-circuit breaking current breaking times |
Second-rate |
30 |
||
|
7 |
Rated short-circuit making current (peak value) |
kA |
50 |
||
|
8 |
Rated peak withstand current |
||||
|
9 |
Rated short-time withstand current |
20 |
|||
|
10 |
Rated short circuit duration |
s |
4 |
||
|
11 |
Opening time (the time from when the control unit receives the opening command to when the three-phase contacts separate) |
0.040-0.060 |
|||
|
12 |
Closing time (the time from when the control unit receives the closing command to when the three-phase contacts close) |
0.070-0.120 |
|||
|
13 |
Mechanical life |
Second-rate |
10000 |
||
|
14 |
Rated closing operating voltage |
v |
DC110、DC220 |
||
|
15 |
Rated opening operating voltage |
DC110、DC220 |
|||
|
16 |
Overcurrent protection |
Current setting multiple |
|
0.2-2.5 |
|
|
Setting current tolerance |
|
±10% |
|||
|
Delay setting value |
s |
0-5 |
|||
|
Delay tolerance |
|
±10% |
|||
|
17 |
Quick-break protection |
Current setting multiple |
|
2.5-10 |
|
|
Setting current tolerance |
|
±10% |
|||
|
Delay setting value |
s |
0-0.5 |
|||
|
Delay tolerance |
|
±10% |
|||
|
18 |
Control unit AC charging input current |
Rating |
A |
5 |
|
|
Fluctuation range |
A |
0.5-8 |
|||