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GIS, circuit breaker, disconnector & its parts |
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1.Main Features
1.1 Compactness.
1.2 Application of the latest development of the electric field and flow field analysis.
1.3 High current breaking capacity circuit breaker with unique construction, leading to reliable electric and mechanical performance and adjustment-free feature in site erection.
1.4 Good agreement with IEC standards concerned.
1.5 Long mechanical endurance, low operating noise and small radio interference.
1.6 High component interchangeability, easy handing and transportation, etc
2.Main technical Data
|
ITem |
Unit |
Data |
|
Rated voltage |
kV |
252 |
|
Rated current |
A |
3150 |
|
Rated SF6 gas pressure(20℃) |
CB & CT compartment |
MPa |
0.6 |
|
Other compartments |
0.45 |
|
Rated peak withstand current (peak) |
kA |
125 |
|
Rated short time withstand current (rms) |
kA |
50 (3s) |
|
Rated short circuit breaking current |
kA |
50 |
|
First pole to clear factor |
|
1.5 |
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Overvoltage multiple of reversal phase |
|
2.5 |
|
Rated continuously breaking time (50kA) |
Times |
26 |
|
Rated operating sequence |
|
O-0.3s-CO-3min-CO |
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Opening time |
ms |
28 +5-3 |
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Closing time |
ms |
60±5 |
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Breaking time |
ms |
≤50 |
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Closing-opening time |
ms |
60±5 |
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Operating mechanism |
|
Hydraulic |
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Rated oil pressure |
MPa |
26.0±0.5 | |
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