Description
LW36-126 series outdoor high-voltage sulfur hexafluoide circuit breaker is an outdoor product, suitable for power grid with an altitude not exceeding 3000m, ambient temperature not lower than -30"C, pollution level not higher than grade IV AC 50Hz, highest voltage of 126KV. It can be used to cut off rated current, fault current or switching line to realize control and protection of power system. It can also be used as contact circuit breaker.
The product with SF6 gas as the arcing and insulating medium, adopted the most advanced since the arcing technology, with the new spring operating mechanism, has a long life, small work operation, low noise, high reliability, price moderate, etc, in the current electric power equipment trend without oil, the process of large capacity, can completely replace imported products of the same type.
Main technical parameters
|
Item |
Unit |
Data |
|
Rated voltage |
KV |
126 |
|
Rated current |
A |
2500/3150 |
|
Rated frequency |
Hz |
50 |
|
Rated short circuit breaking current |
KA |
31.5/40 |
|
Rated short circuit shut-off current (peak) |
KA |
80/100 |
|
Rated short - term withstand voltage |
KA |
31.5/40 |
|
Rated peak withstand current |
KA |
80/100 |
|
Rated withstand voltage of power frequency (1 min) |
KV |
To earth: 230 Fracture brake: 230+73 |
|
Rated lightning shock withstand voltage ( 1 min) |
KV |
To earth: 550 Fracture brake: 550+103 |
|
Rated short circuit duration |
S |
4 |
|
Rated out-of-step breaking current |
KA |
10 |
|
Near area fault switching current |
KA |
90%Ik 75%Ik |
|
Rated line charging on-off current |
KA |
31.5 |
|
Rated operating sequence |
0-0.3s-C0-180s-CO |
|
|
SF6 gas pressure (20°C gauge pressure) |
Mpa |
0.6 |
|
Mechanical life |
times |
6000 |
Outline and mounting dimensions
PDF Datasheet
