Product Description
VS1-12(ZN63A) indoor high voltage vacuum circuit breaker is a three-phase AC 50 Hz indoor high voltage switchgear with rated voltage of 7.2-12kV. The circuit breaker meets the requirements of China's national standard gb1984-2003 "AC high voltage circuit breaker ", jb3855-1996 "3.6 ~ 40.5 kV indoor AC high voltage vacuum circuit breaker", d1403-91 "10-35 kV indoor high voltage vacuum circuit breaker ordering technical conditions" and relevant iec60694. IEC62271-100 standards, and has reliable interlocking function.
VS1-12(ZN63A) indoor high voltage vacuum circuit breaker can be operated frequently and has the ability of multiple breaking, and fast reclosing.
VS1-12(ZN63A) indoor high-voltage vacuum circuit breaker is designed as a front and back separate structure, which can be used as a fixed installation unit or as a separate handcart with a chassis car.
Product Parameters
serial number |
name |
unit |
data |
1 |
nominal voltage |
KV |
12 |
2 |
rated frequency |
Hz |
50 |
3 |
Rated insulation level |
Voltage withstand 1min power frequency |
kA |
max/alternate with 42/48 |
Lightning shock voltage (peak) |
kA |
max/alternate with 75/85 |
4 |
Rated short circuit breaking current |
kA |
20 |
25 |
31.5 |
40 |
5 |
rated current |
A |
630 |
630 |
1250 |
1600 |
1250 |
1600 |
A |
1250 |
1250 |
2000 |
2500 |
2000 |
2500 |
|
Rated short-time tolerable current (effective value) |
kA |
20 |
25 |
31.5 |
40 |
7 |
Rated peak tolerable current (peak) |
kA |
50 |
63 |
80 |
100 |
8 |
Rated short circuit closing current (peak) |
|
50 |
63 |
80 |
100 |
9 |
Rated short circuit current duration |
S |
4 |
10 |
mechanical life |
next |
20000 |
11 |
Power frequency withstand voltage of secondary circuit (1min) |
V |
2000 |
12 |
Rated sequence of operation |
minute -1- Or points -t1- Or points |
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