40.5kV SF6 Circuit Breaker GPFN Series
Model and Meaning
Use Environmental Conditions
a. Altitude: no more than 1000m
b. Ambient temperature: -15℃~+40℃, the daily average temperature does not exceed +35℃
c. Environmental humidity: daily average relative humidity: ≤95% monthly average relative humidity: ≤90%
Daily average vapor pressure: ≤2.2x10-3 MPa Monthly average vapor pressure: ≤1.8x10-3MPa
d. Earthquake intensity: no more than 8 degrees
e. Location of use: Ambient air is not appreciably polluted by dust, smoke, corrosive and/or flammable gases, vapors or salt mist.
Note: When the actual use environment does not meet the above conditions, please consult with our company.
Technical Parameter
No. |
Items |
Unit |
Data |
|||
1 |
Rated voltage |
kV |
40.5 |
|||
2 |
Rated frequency |
Hz |
50 |
|||
3 |
1min power frequency withstand voltage |
Between poles, To earth |
kV |
95 |
||
Fractures |
118 |
|||||
Lightning impulse withstand voltage |
Between poles, To earth |
185 |
||||
Fractures |
215 |
|||||
4 |
Rated current |
A |
1250 1600 2000 2500 |
|||
5 |
Rated short-time withstand current (RMS) |
kA |
25 |
31.5 |
||
6 |
Rated peak withstand current |
63 |
80 |
|||
7 |
Rated short-circuit breaking current (RMS) |
25 |
31.5 |
|||
8 |
Rated short-circuit making current (peak value) |
63 |
80 |
|||
9 |
Rated short circuit duration |
s |
4 |
|||
10 |
Rated sequence of operations |
O-0.3s-CO-180s-CO |
||||
11 |
Rated out-of-phase earth fault breaking current |
kA |
21.7 |
27.4 |
||
12 |
Rated cable charging current switching test |
A |
50 |
|||
13 |
Rated single/back-to-back capacitor bank breaking current |
800/800 |
||||
14 |
Mechanical life |
times |
10000 |
|||
15 |
Short circuit current breaking times |
times |
30 |
|||
16 |
Secondary circuit 1 min power frequency withstand voltage |
2000 |
||||
17 |
Rated operating voltage |
Closing coil |
V |
DC110/220, AC220 |
||
Opening coil |
V |
DC110/220, AC220 |
||||
18 |
Rated voltage of energy storage motor |
W |
DC110/220, AC220 |
|||
19 |
Rated power of energy storage motor |
s |
250 |
|||
20 |
Energy storage time (rated voltage) |
s |
≤10 |
|||
21 |
Rated pressure of SF6 gas (gauge pressure at 20°C) |
Mpa |
0.350+0.02 |
|||
22 |
Alarm pressure |
Mpa |
0.29±0.01 |
|||
23 |
Minimum functional pressure (blocking pressure) |
Mpa |
0.28±0.01 |
|||
24 |
Annual leak rate |
% |
≤0.5 |
|||
25 |
Gas moisture content |
μL/L |
≤150 |
|||
26 |
Moving contact stroke |
mm |
≥78 |
|||
27 |
Contact Spacing |
mm |
50±1.5 |
|||
28 |
Opening time |
ms |
60~78 |
|||
29 |
Closing time |
ms |
65~95 |
|||
30 |
Three-phase closing and opening are not periodic |
≤5 |
||||
31 |
Average opening speed (within 10ms after halfway) |
ms |
2.2~2.8 |
|||
32 |
Average closing speed (within 10ms after half-way) |
ms |
≥1.5 |
|||
33 |
Main conductive loop resistance |
μΩ |
≤32(Handcart) |
≤20(Fixed type) |