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LW8-40.5 33kV Outdoor High Voltage SF6 Circuit Breaker

33kV Outdoor High Voltage SF6 Circuit Breaker

Additional information

Product Details:

LW8-40.5 33kV Outdoor High Voltage SF6 Circuit Breaker


General Introduction

LW8A-40.5 Type 12kv  24kv  33kv Outdoor Sf6 Circuit Breaker  is an outdoor device used in AC 50HZ three-phase 40.5KV power system. It is applicable to locations that need frequent operating in rated current or under repeatedly on/off short circuit current. Containing the current transformer for measurement and protection, it can directly replace SW2-35 less oil circuit breaker and various types of oil circuit breaker with transition bracket. It can also be used as a tie breaker and switching capacitor group situations with CT14 type spring mechanism.


Working Conditions

Ambient temperature:-30℃~+40℃


Wind pressure:≤700Pa

Relative humidity:daily average relative humidity: ≤95%;monthly average relative humidity≤90;daily average saturated vapor pressure ≤2.2KPa;monthly average value   ≤1.8KPa

Air pollution level:Ⅲ

Earthquake intensity:≤8 degree

The installation should be free from fire, explosion, severe vibration, chemical corrosion and serious pollution


Technical Specification

 No.  Item  Unit Data
 1  Rated voltage KV 40.5
2 Rated current A 2000
3 Rated frequency HZ 50
5 Rated short circuit breaking current KA 31.5
6 Rated short-circuit current (peak) KA 50
7 Rated short-circuit withstand current KA 20
10 Rated short circuit closing current(peak) KA 50
13 Electrical life of rated short circuit breaking current times 30
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-CO
17 Split time ms ≤60
18 Closing time ms ≤100
19 Velocity of rigid composite m/s 3.2
20 Velocity of rigidity m/s 3.4
21 Mechanical life times 6000
24 Quality of each circuit breaker kg 1400


Outline Dimension

LW8 SF6 circuit breaker


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