ZN63 (VS1) -12 indoor side-mounted high voltage vacuum circuit breaker
Usage Environment
◆Ambient temperature: not higher than 40℃, not lower than -10℃ (storage and transportation at -30℃ is allowed).
◆Altitude: not more than 3000m. (If the altitude needs to be increased, the rated discharge level will be increased accordingly)
◆Relative humidity: daily average value is not more than 95%, daily average value of saturated vapor pressure is not more than 2.2x10-3MPa, and monthly average value is not more than 1.8x10-3MPa.
◆Earthquake intensity: no more than 8 levels.
◆Places free from fire, explosion, severe pollution, chemical corrosion and severe vibration.
Technical Parameters
|
Serial number |
Name |
Unit |
D |
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|
1 |
Rated voltage |
kV |
12 |
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|
2 |
Maximum operating voltage |
kV |
12 |
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|
3 |
Rated current |
A |
630 1250 |
630 1250 1600 2000 2500 3150 |
1250 1600 2000 2500 3150 4000 |
|
|
4 |
Rated short-circuit breaking current （Rated thermal stability current - effective value ） |
kA |
20/25 |
31.5 |
40 |
|
|
5 |
Rated short-circuit making current （peak value) |
kA |
50/63 |
80 |
100 |
|
|
6 |
Rated peak withstand current (rated dynamic stability current - peak value) |
kA |
50/63 |
80 |
100 |
|
|
7 |
4S Rated short circuit withstand current |
kA |
20/25 |
31.5 |
40 |
|
|
8 |
Rated insulation level |
Working withstand voltage (rated breaking before and after )/1min power frequency withstand voltage |
kV |
To ground 42 (break 48) |
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|
Impulse withstand voltage (rated before and after breaking)/rated lightning impulse withstand voltage peak |
To ground 75 (break 85) |
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|
9 |
Rated thermal stabilization time |
s |
4 |
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|
10 |
Rated operating sequence |
|
split-0.3S-close split-1805-close split |
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|
11 |
Mechanical life |
Second-rate |
20000 |
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|
12 |
Rated short-circuit breaking current breaking times |
Second-rate |
50 |
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|
13 |
Rated closing voltage of operating mechanism (DC) |
V |
AC、DC 110，220 |
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|
14 |
Rated trip voltage of operating mechanism (DC) |
V |
AC、DC 110，220 |
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|
15 |
Contact opening distance |
mm |
11±1 |
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|
16 |
Overtravel (contact spring compression length) |
mm |
3.5±0.5 |
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|
17 |
Three-phase opening and closing bounce time |
ms |
≤2 |
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|
18 |
Contact closing bounce time |
ms |
≤2 |
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|
19 |
Average opening speed |
m/s |
0.9-1.2 |
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|
Average closing speed |
m/s |
0.5-0.8 |
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|
20 |
Opening time |
Maximum operating voltage |
s |
≤0.05 |
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|
21 |
Minimum operating voltage |
≤0.08 |
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|
22 |
Closing time |
s |
0.1 |
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|
23 |
Main circuit resistance of each phase |
νΩ |
630≤50 1250≤45 |
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|
24 |
Allowable wear accumulation thickness of moving and static contacts |
mm |
3 |
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