LW8A-40.5 type outdoor high-pressure sulfur hexafluoride circuit breaker is three-pole ac 50 hz, outdoor high voltage switch equipment, applicable to 40.5 kV power transmission and distribution system control and protection, can also be used to contact circuit breaker and movable capacitor group.
Standard: IEC 62271-100.
Certification: ISO9001-2000, CCC
Operation: Energy-storage Type
Installation: Fixed
Arc-extinguishing Medium: SF6
Speed: Normal Type Circuit Breaker
HS Code: 85353000
|
No. |
Name |
Value |
|
|
1 |
Rated voltage(KV) |
40.5 |
|
|
2 |
Rated current(A) |
1600/2000 |
|
|
3 |
Rated insulating level |
Power frequency withstand voltage (KV)/1min |
95 |
|
Thunder impulse withstand voltage (KV) |
185 |
||
|
4 |
Rated short-circuit breaking current (KV) |
31.5/40 |
|
|
5 |
Rated out-of-phase breaking current (KA) |
7.9/10 |
|
|
6 |
Breaking current of earth fault in different phase(KA) |
27.4/34.8 |
|
|
7 |
Rated breaking current of sigle capacitor bank(A) |
400 |
|
|
8 |
Rated operating sequence |
O-0.3S-CO-180S-CO |
|
|
9 |
Rated SF6 gas pressure(Mpa) |
0.55 |
|
|
10 |
Switch-off time(on rated voltage)(ms) |
30 ≤t ≤40 |
|
|
11 |
Switch-on time(on rated voltage)(ms) |
60 ≤t ≤80 |
|
|
12 |
Rated short-circuit switch current(peak)(KA) |
80/100 |
|
|
13 |
Rated short-cirduration time(s) |
4 |
|
|
14 |
Rated short time withstand current (KA) |
31.5/40 |
|
|
15 |
Rated peak value withstand current(KA) |
80/100 |
|
|
16 |
Mechanical life test(time) |
6000 |
|
|
17 |
Cumulative breaking times of rated short-circuit breaking current 31.5KA/40KA(time) |
20/16 |
|
|
18 |
Cumulative breaking times of rated current(time) |
2000 |
|
|
19 |
Annual leakage rate of SF6(%) |
≤0.5 |
|
|
20 |
Water content of SF6(V/V)(PPm) |
≤150 |
|
|
21 |
Outer insulating leakage ratio distance(mm/KV) |
≤25 , ≤31 |
|
|
22 |
Weight of the breaker(kg) |
1000 |
|
Application: three-phase AC 50Hz outdoor HV electrical apparatus with CT14 spring operating mechanism, for control and protection of 40.5kV power system as well as communicating with circuit breaker. Current transformer inside as well for measuring and protection.
Working Condition
- Sunlight: 1000W/m
- Relative humidity: Daily average value is 95%
- Monthly average value is 90%
- Seismic: Horizontal acceleration: 0.250g
- Vertical acceleration: 0.125g
- Pollution level: (25mm/kV)
- Thickness of ice covering: 10mm (when wind speed 15m/s)
- Protection degree: IP5XW
- Max wind velocity 34m/s
Note: Customized products are available.
You can ask Data Sheet List for this product before order: This email address is being protected from spambots. You need JavaScript enabled to view it.or This email address is being protected from spambots. You need JavaScript enabled to view it.
