LW36-145kV Outdoor SF6 Circuit Breaker

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--- Class 110kV,126kV,132kV,145kV

<< The professional manufacturer of Outdoor and Indoor SF6 gas circuit breaker >>


Beierbian developed LW36-145 type outdoor SF6 gas circuit breaker using modern processing technology and computer-aided design techniques, combined

with the latest generation of spring bodies and the advantages of a permanent institution. Its pursuit of high reliability, easy to maintain design concepts to create ageneration of superior product, is the most reliable electric power system and the best option.

Beierbian all series switches meet the following criteria:

ANS/IEEE C37.60/IEC 62271-100(GB1984-2003 China standard)

GBT11022-1999 China Standard
IEC 60255-11
IEC 60255-21-1 Class I
IEC 60255-21-2 Class I
IEC 60255-21-3 Class I
IEC 60255-22-1 Class III
IEC 60255-22-2 Class IV
IEC 60255-22-3 Class III
IEC 60255-22-4 Class IV

Using of the enviroment:

Ambient temperature:-40℃~+40℃, the daily average temperature:25℃;

Altitude:≤ 3000m(in excess of the value of technical discussions with the divisionI);

Wind speed:35m/s;

Earthquake intensity: not more than 8 degrees;

Degree of ambient air contamination level not greater than:III level;

Daily average ambient air relative humidity≤95%, on average≤90%;

Saturated vapor pressure of daily mean values≤ 2.2*10^(-3)MPa, on average≤1.8*10^(-3)MPa;

More about the use of environment conditions, please consult with the manufacturer.

Note: For short circuit breaking current & rated current is optional by clients.

Technical data of 132kV sf6 gas circuit breaker

No. Item Unit Data
1 Rated voltage KV 145
2 Rated frequency Hz 50/60
3 Rated current A 3150
4 1min power frequency withstand voltage KV 265
5 Lingthning impluse withstand voltage(peak value KV 650
6 5 min power frequency voltage at zero gas pressure KV 109
7 Rated short circuit breaking current KA 80...100
8 Rated out-of-phase breaking current KA 10
9 Rated cable(line) charging breaking current(peak) A 50
10 Rated gas pressure MPa 0.5
11 Main loop resistance ≤45
12 Operation sequence   O-0.3s-CO-180s-CO
13 SF6 gas leakage rate(per year) % ≤1
14 Moisture content(V/V) ppm ≤150
15 Across the open contacts mm ≥3950
Creepage distance  
TO earth ≥3950
16 Mechanical life times 10,000


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