Overview
LW36-40.5(W)/T2000-31.5 outdoor sulfur hexafluoride circuit breaker is an electrical device in an AC 50Hz three-phase power system. It is suitable for control and protection in power systems with rated voltage and 40.5KV. It is included with or The external current transformer is available for measurement and protection.
Model meaning
Technical Parameters
|
Project |
Value |
|
|
Rated voltage (KV) |
40.5 |
|
|
Rated current(A) |
1600/2000 |
|
|
Rated insulation level |
Power frequency withstand voltage (KV) |
95 |
|
Lightning impulse withstand voltage (KV) |
185 |
|
|
Rated short circuit breaking current (KA) |
25/31.5 |
|
|
Rated out-of-step breaking current (KA) |
7.9/10 |
|
|
Out-of-phase ground fault breaking current (KA) |
27.4/34.8 |
|
|
Rated breaking current of a single capacitor bank (A) |
400 |
|
|
Rated operating sequence |
O-0.3S-CO-180S-CO |
|
|
SF6 gas rated voltage (MPa) |
0.45 |
|
|
Opening time ms (rated voltage) |
30≤t≤40 |
|
|
Closing time ms (rated voltage) |
60≤t≤80 |
|
|
Rated short circuit making current (peak value) |
63/80 |
|
|
Rated short circuit duration (S) |
4 |
|
|
Rated short-time withstand current (KA) |
25/31.5 |
|
|
Rated peak withstand current (KA) |
63/880 |
|
|
Mechanical life test(times) |
10000 |
|
|
Rated short circuit breaking current 31.5KA/40KA cumulative breaking times (times) |
20 |
|
|
Rated current cumulative breaking times (times) |
2000 |
|
|
SF6 gas annual leakage rate (%) |
≤0.5 |
|
|
SF6 gas trace moisture content (V/V) |
≤150 |
|
|
Specific distance of external insulation leakage of circuit breaker (mm/KV) |
≥25,≥31 |
|
|
Circuit breaker weight (Kg) |
1000 |
|
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