LW34-12/24 SF6 Load Break Switch is used in outdoor 12KV or 24kV three phase AC 50/60Hz power system to open and close load current and short circuit current.
Description:
LW34-12/24 SF6 Load Break Switch is used in outdoor 12KV or 24kV three phase AC 50/60Hz power system to open and close load current and short circuit current. It accords with the standards of IEC60265 & GB/T3804 3.6~40.5KV High voltage AC load break switch, GB/T11022 High voltage switch apparatus and control apparatus.
Features:
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1、Stainless steel panel have good antisepsis and seal performance. |
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2、Light in weight and convenience for transit. |
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3、Free maintenance. |
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4、With anti-explode device. |
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5、The switch can be locked automatically when the press is 0.03 to 0.07MPa. |
Techincal data:
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No. |
Item |
Unit |
Data |
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|
1 |
Rated voltage |
kV |
12/24 |
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|
2 |
Rated insulation level |
Power frequency |
kV |
Across open contacts:49,phase to phase, phase to earth:42 |
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|
3 |
Wet withstand voltage |
kV |
Phase to phase, phase to earth:34/50 |
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|
4 |
Impulse withstand voltage |
kV |
Across open contacts:85,phase to phase, phase to earth:75 |
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|
5 |
Rated power frequency |
Hz |
50/60 |
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|
6 |
Rated current |
A |
630 |
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|
7 |
Rated active load breaking current |
A |
630 |
Breaking 100 times |
|
|
8 |
Rated loop breaking current |
A |
630 |
Breaking 10 times |
|
|
9 |
5% rated active load breaking current |
A |
31.5 |
Breaking 20 times |
|
|
10 |
Rated cable charging current |
A |
10 |
Breaking 20 times |
|
|
11 |
Rated short-circuit making current(peak) |
kA |
50 |
Making 5 times |
|
|
12 |
Rated short-time withstand current(4s) |
kA |
20 |
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|
13 |
Rated peak withstand current |
kA |
50 |
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|
14 |
Rated SF6 pressure |
Mpa |
0.12 |
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|
15 |
Rated SF6 yearly gas leakage rate |
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≤1% |
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