Rated current：3150ARated frequency：50HzType：Outdoor Gas Circuit BreakerMechanical life：10000Times
Product Description
LW36-132 Outdoor High Voltage SF6 Gas Circuit Breaker:
SF6 live tank circuit breaker LW25-132 is outdoor unit which is developed by our company and Xi’an High Voltage Apparatus Research Institute with sulfur hexafluoride gas as insulation and arc extinguishing medium and principle of single variable pressure cabinet type arc extinguishing. The product is suitable for 126KV three-phase AC 50HZ power system, which is used for points and load current , overload current and short circuit current.
Advantages
a) Reliable breaking performance
b) Reliable mechanical operating performance:high operational reliability, mechanical life up to more than 10000 time
c) Reliable insulation
d) Reliablesealing performance
e) Strict process of product components
Environmental Conditions
Ambient temperature:-30°C~+40°CRelative humidity:≤95%or≤90%
Thedaily average saturated vapor pressure:≤2.2KPa;
Themonthly average value:≤1.8KPa.
Altitude:≤3000m
Seismic intensity:≤8
Air pollution level:Level Ⅲ
Wind pressure:≤700pa
*The installation shall be free from fire, explosion, severe vibration, chemical corrosion and serious pollution.
Structure and Function
| No. | Item | Unit | Data | |
| 1 | Rated voltage | KV | 132 | |
| 2 | Rated current | A | 3150 | |
| 3 | Rated frequency | HZ | 50 | |
| 4 | First pole to clear factor | 1.5 | ||
| 5 | Rated short circuit breaking current | KA | 40 | |
| 6 | Rated short-circuit current (peak) | KA | 100 | |
| 7 | Rated short-circuit withstand current | KA | 40 | |
| 8 | Rated power frequencywithstand voltage(1min) | Phase to earth | KV | K·230 |
| Phase to phase | K·(230+70) | |||
| 9 | Rated lightning impulse withstand voltage | Phase to earth | KV | K·550 |
| Phase to phase | K·(550+103) | |||
| 10 | Rated peak withstand current | KA | 100 | |
| 11 | Rated out of step current | KA | 10 | |
| 12 | Near fault current | KA | 90%1K | |
| 13 | Electrical life of rated short circuit breaking current | times | 20 | |
| 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-CO35 | ||
| 17 | Main circuit resistance | μΩ | ≤35 | |
| 18 | Rated SF6 gas pressure | MPa | 0.6 | |
| 19 | SF6 gas leakage rate | ppm | ≤0.55 | |
| 20 | Moisture content of SF6 gas (V/V) | ≤150 | ||
| 21 | Mechanical life | times | 10000 | |
Overall and installation dimension
ServiceEnvironment
