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GENERAL
LW8-40.5 outdoor high-voltage sulfur hexafluoride circuit breaker (hereinafter referred to as "circuit breaker") is outdoor electrical equipment with three-phase AC 50Hz, which is applicable to the control and protection of 35kV Power Transmission and distribution system and can also be used to connect circuit breakers and switch capacitor banks.
LW8 - 40.5 circuit breaker is equipped with CT T14 spring operating mechanism.
The circuit breaker meets the requirements of GB / T 1984-89 AC high voltage circuit breaker and IEC publication high voltage AC circuit breaker.
MODEL DESCRIPTION
LW 38 - 40.5 (W) / T -- - --
L = Sulfur Hexafluoride(SF6) circuit breaker
W = Outdoor
8 = Design Serial Number
40.5 = Rated Voltage (kV)
W = Anti-fouling
T = Spring Operating Mechanism
-- = Rated Current (A)
-- = Rated Short-circuit Breaking Current (kA)
USAGE: ENVIRONMENTAL CONDITION
- Altitude: ≤ 1000m, If the altitude is higher than 1000m, the rated insulation level shall be corrected accordingly.
- Ambient temperature: -40 oC ~ +45 oC,
- Maximum daily temperature difference: 25 K
- Humidity: Average daily relative humidity: 95%, average monthly relative humidity: 90%.
- Sunshine intensity: not more than 0.1W/cm 2
- Wind Speed: 34m/s
- Wind pressure: 700Pa
- Pollution level: e - level
- Icing thickness: Not more than 10mm
- Resistance to floor drain: horizontal acceleration 0.3g, vertical acceleration 0.2g
MAIN TECHNICAL PARAMETERS
| No. |
Item |
Unit |
Data |
| 1 |
Rated Voltage |
kV |
40.5 |
| 2 |
Rated Insulation Level |
Lightning Impulse Withstand Voltage (Full-wave Peak Value) |
185/215 (Fracture) |
| Power Frequency Withstand Voltage (1 minute) |
95 |
| 3 |
Rated Current |
A |
1600, 2000 |
| 4 |
Mechanical Life |
Times |
3000 |
| 5 |
SF6 Gas Rated Pressure (gauge pressure at 20oC) |
Mpa |
0.45 |
| 6 |
Locked Pressure (gauge pressure at 20oC) |
Mpa |
0.45 |
| 7 |
Minimum Operating Ambient Temperature |
oC |
-30 |
| 8 |
Rated Short-Circuit Breaking Current |
kA |
25, 31.5 |
| 9 |
Rated Short-Circuit Closing Current (Peak Value) |
63, 80 |
| 10 |
Rated Short-Circuit time Withstand Current (Thermal Stable Current) |
25, 31.5 |
| 11 |
Rated Peak Value Withstand Current (Strive to Stabilize the Current) |
63, 80 |
| 12 |
Rated Out of Step Breaking Current |
63, 80 |
| 13 |
Rated Short-circuit Continuous Time |
S |
4 |
| 14 |
Closing - Opening Time |
Not more than 0.1 |
| 15 |
Opening - Closing Time |
Not more than 0.1 |
| 16 |
Rated Operating Order |
|
Open- 0.3s - Close Open - 180s - Close Open |
| 17 |
Rated Opening and Closing Current of Single Capacitor Bank |
A |
400 |
| 18 |
Under Rated Short-Circuit Breaking Current's Cumulative Breaking Times |
Times |
15, 10 |
| 19 |
Annual Leakage Gas |
% year |
Not more than 1 |
| 20 |
SF6 Gas Moisture content (20oC) |
PPm (V) |
Not more than 50 |
| 21 |
Rated Operating Voltage of CT14 Spring Operating Mechanism |
V |
220V |
| Closing Coil, Opening Coil Voltage |
AC220, DC110, 220 |
| Voltage of Energy Storage Motor |
AC220, DC220 |
| 22 |
SF6 Gas Weight |
Kg |
8 |
| 23 |
Circuit Breaker (Including Operating Mechanism) Weight |
1400 |
| Note: If the altitude is over 1000m, the rated insulation level should be modified as appropriate. |
OUTLINE AND INSTALLATION DIMENSION
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Our customers are located all over the world.
Test Reports
All products have undergone professional testing and certification.
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