Environmental conditions:
- Altitude: the altitude does not exceed 2000m;
- Ambient temperature: no higher than +40℃, not lower than -25℃;
- Relative humidity: the daily average does not exceed 95%, and the monthly average does not exceed 90%;
- Earthquake intensity: no more than 8 degrees;
- Locations without fire, explosion hazard, serious contamination, chemical corrosion and severe vibration.
Structural features:
- The circuit breaker adopts the arc extinguishing chamber on the upper part, and the structure of the whole structure under the mechanism is favorable for debugging;
- It adopts composite insulation structure of air and organic materials, which is compact in design and light in weight;
- Screw drive mechanism, labor-saving, stable, self-locking performance.
Technical parameters
|
Name |
Unit |
Value |
|
Rated voltage |
KV |
40.5 |
|
1min power frequency withstand voltage |
KV |
95 |
|
Lightning impulse withstand voltage |
KV |
185 |
|
Rated frequency |
Hz |
50 |
|
Rated current |
A |
1250,1600,2000 |
|
Rated short-time withstand current |
KA |
25,31.5 |
|
Rated peak withstand current |
KA |
63,80 |
|
Rated short circuit duration |
S |
4 |
|
Rated short-circuit breaking current |
KA |
25,31.5 |
|
Rated short circuit closing current |
KA |
63,80 |
|
Rated operation sequence |
0-0.3s-Co-180s-Co |
|
|
Break time |
ms |
<80 |
|
Rated operating voltage |
V |
~110/-110,~220/-220 |
|
Mechanical life |
time |
10000 |
