LW8-40.5 33kV Outdoor High Voltage SF6 Circuit Breaker
LW8-40.5 33kV Outdoor High Voltage SF6 Circuit Breaker
Description
LW8-40.5 33kV Outdoor High Voltage SF6 Circuit Breaker
General Introduction
LW8A-40.5 Type 12kv 24kv 33kv Outdoor Sf6 Circuit Breaker is an outdoor device used in AC 50HZ three-phase 40.5KV power system. It is applicable to locations that need frequent operating in rated current or under repeatedly on/off short circuit current. Containing the current transformer for measurement and protection, it can directly replace SW2-35 less oil circuit breaker and various types of oil circuit breaker with transition bracket. It can also be used as a tie breaker and switching capacitor group situations with CT14 type spring mechanism.
Working Conditions
Ambient temperature:-30℃~+40℃
Altitude:≤3000m
Wind pressure:≤700Pa
Relative humidity:daily average relative humidity: ≤95%;monthly average relative humidity≤90;daily average saturated vapor pressure ≤2.2KPa;monthly average value ≤1.8KPa
Air pollution level:Ⅲ
Earthquake intensity:≤8 degree
The installation should be free from fire, explosion, severe vibration, chemical corrosion and serious pollution
Technical Specification
No. |
Item |
Unit |
Data |
|
1 |
Rated voltage |
KV |
40.5 |
|
2 |
Rated current |
A |
2000 |
|
3 |
Rated frequency |
HZ |
50 |
|
5 |
Rated short circuit breaking current |
KA |
31.5 |
|
6 |
Rated short-circuit current (peak) |
KA |
50 |
|
7 |
Rated short-circuit withstand current |
KA |
20 |
|
10 |
Rated short circuit closing current(peak) |
KA |
50 |
|
13 |
Electrical life of rated short circuit breaking current |
times |
30 |
|
14 |
Rated short circuit duration |
s |
4 |
|
15 |
Rated line charging close current |
A |
31.5 |
|
16 |
Rated operation sequence |
O-0.3s-CO-180s-CO |
||
17 |
Split time |
ms |
≤60 |
|
18 |
Closing time |
ms |
≤100 |
|
19 |
Velocity of rigid composite |
m/s |
3.2 |
|
20 |
Velocity of rigidity |
m/s |
3.4 |
|
21 |
Mechanical life |
times |
6000 |
|
24 |
Quality of each circuit breaker |
kg |
1400 |
|
