| Customization: | Available |
|---|---|
| Breaking Capacity: | High Voltage Circuit Breakers |
| Operation: | Manual Type |
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Overview:
LW-40.5/72.5/126/145 series of 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.
All series switches meet the following criteria:
ANSI/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:-40ºC~+40ºC, the daily average temperature: 25ºC;
Altitude:≤ 3000m(in excess of the value of technical discussions with the division I);
Wind speed:35 m/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.
Technical Parameter
|
No. |
Item |
Unit |
Data |
|
1 |
Rated voltage |
KV |
40.5 |
|
2 |
Rated frequency |
Hz |
50/60 |
|
3 |
Rated current |
A |
1250 |
|
4 |
1min power frequency withstand voltage |
KV |
95/118 |
|
5 |
Lingthning impluse withstand voltage(peak value |
KV |
215 |
|
6 |
5 min power frequency voltage at zero gas pressure |
KV |
40.5 |
|
7 |
Rated short circuit breaking current |
KA |
63,80 |
|
8 |
Rated out-of-phase breaking current |
KA |
8/10 |
|
9 |
Rated cable(line) charging breaking current(peak) |
A |
31.5 |
|
10 |
Rated gas pressure |
MPa |
0.4/0.15 (higher current) |
|
11 |
Main loop resistance |
uΩ |
≤80 |
|
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 |
Creepage distance Across the open comtacts Creepage distance To earth |
mm mm |
1256 1256 |
|
16 |
Mechanical life |
times |
10,000 |
Note: For short circuit breaking current & rated current is optional by clients.
Outline Dimension
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