Item:LW16-40.5 SF6 Circuit Breaker SF6 gas: Provides excellent arc extinguishing performance. Compact and simple structure for easy installation and space-saving. Smooth operation: Good opening performance with balanced operation. Sealed design: Low operational noise. Low maintenance: Reduced inspection and maintenance workload.
Item:LW16-40.5 SF6 Circuit Breaker
TheLW16-40.5 SF6 Circuit Breaker is designed for frequent operation and can be used as:
· Atie circuit breaker.
· Acircuit breaker for closing capacitor banks and reactor banks.
It features a built-incurrent transformer for measurement and protection. The LW16-40.5 can directly replace theSW2-35 oil-less circuit breaker and, with filter brackets, can also replace various types of multi-oil circuit breakers. It is the idealoil-free circuit breaker for35kV power systems.
No. | ltem | Unit | Data | ||
1 | Rated | voltage | kV | 40.5 | |
Rated insulation level |
Lightning impoct withstand voltage (full crest valuel | kv | 185 | ||
Power frequency withstand voltage(Imin) | kV | 95 | |||
2 | Rated current | A | 1600 2000 | ||
3 | Mechanical life | 次fime | 3000 | ||
4 | Rated pressure of sulphur hexafluoride gas lgauge pressure at 20℃) | MPA | 0.50 | ||
5 | Alarm pressure/minimum functional pressure (gauge pressure at 20℃) | MPA | 0.47/0.45 | ||
6 7 |
Rated short circuit switching current | kA | 25 | 31.5 | |
Rated short-circuit closing current(peak) | KA | 63 | 80 | ||
8 | Rated Short-Time withstand current (thermal stable current) | kA | 25 | 31.5 | |
9 | Rated Short-Time withstand current (thermal stable current) | kA | 60 | 80 | |
10 | Rated short circuit switching current | kA | 63 | 8 | |
11 | The cumulative number of swilching times under rated short-circuit switching | 次Times | 15 | 10 | |
12 | Rated short circuit duration | S | 4 | ||
13 | Closing time lat rated operating voltagel | S | ≤0.1 | ||
14 | Switching time (at rated operating voltagel | S | 0.06 | ||
15 | Rated order of operation | C-0.3s-CO-180s-CO | |||
16 | Rated opening and closing monomial copacitor bank current | 400 | |||
17 | In leakage | %years | ≤1 | ||
18 | Water content of sulfur hexafluoride gos (V/VM) | ≤150x10-9 | |||
19 | CT14 spring operating mechanism with rated operating voltage | ||||
Closing coil,opening coil voltage | V | IAC):220 380 (DC):48 110 220 | |||
Energy storage motor voltage | V | IAC):220 380 (DC):110 220 | |||
20 | Sulfur hexafluoride gas weight | KG | 8 | ||
21 | Weight of circuil breaker [including operafing mechanisml | KG | 1400 |
Item:LW16-40.5 SF6 Circuit Breaker
· Ambient Temperature: -30°C to +40°C
· Altitude: Up to 1,000 meters (can be customized for higher altitudes)
· Humidity: The relative humidity should not exceed 95%.
· Pollution Level: Suitable for moderate pollution environments (up to pollution degree III).
· Seismic Resistance: Designed to withstand earthquake intensity of up to 8 degrees on the Richter scale.
These environmental conditions ensure the circuit breaker operates reliably under typical conditions found in power distribution systems.
Item:LW16-40.5 SF6 Circuit Breaker
· Faulty SF6 Gas Pressure:
· · Insufficient SF6 gas pressure can lead to poor arc quenching performance, causing the breaker to fail to interrupt faults properly.
· Contamination of SF6 Gas:
· · Moisture or contaminants in the SF6 gas can degrade its dielectric properties, affecting the performance of the breaker.
· Mechanical Failure:
· · Wear and tear of internal components, such as contacts, springs, or the operating mechanism, can cause failure in the opening/closing operation.
· Electrical Overload:
· · Excessive current passing through the breaker beyond its rated capacity may cause overheating, damage to contacts, or insulation failure.
Item:LW16-40.5 SF6 Circuit Breaker
· The LW16-40.5 SF6 Circuit Breaker is designed for a rated voltage of40.5 kV and is suitable for 35 kV power systems.
· The LW16-40.5 usesSF6 (Sulfur Hexafluoride) gas, which has excellent dielectric and arc-extinguishing properties.
· The LW16-40.5 is designed forfrequent operation, making it ideal for applications such as tie circuit breakers and circuit breakers for capacitor and reactor banks.
· Yes, the LW16-40.5 canreplace the SW2-35 oil-less circuit breaker directly. With the use of filter brackets, it can also replace various types of multi-oil circuit breakers.