hlvp(vs1)-12 model indoor high voltage vacuum circuit breaker applies to power system of rated voltage 12kv as a protective and control unit for power grid equipment and industrial power equipment it can equip with kyn28(gzs1), xgn, gg-1a and other types of switchgear panels. related products: isolated handcart, fuse handcart and voltage transformer handcart.
ambient temperature:-10℃- 40℃
relative humidity:the average humidity of a day should be no
more than 95%. the average humidity of a month should be no more than 90%.
earthquake intensity: not exceed 8 degrees.
saturated vapor pressure the average pressure of a day should
be no more than 2.2kpa; the average pressure of a month should be no more
than1.8kpa;
the height above sea level:≤1000 m (except special
requirements)
it should be installed in the places without fire, explosion,
serious filth, and chemical erosion and violent vibration.
no. |
item |
unit |
parameter |
||
1 |
rated voltage |
kv |
12 |
||
2 |
rated lighting impulse voltage tolerance |
kv |
75 |
||
3 |
1 min frequency voltage |
kv |
42 |
||
4 |
frequency tolerance of the secondary circuit voltage (1 min) |
v |
2000 |
||
5 |
rated short-circuit breaking current breaking number |
times |
50 |
||
6 |
1min power frequency |
ka |
42/48 |
||
7 |
lightning impulse withstand voltage (peak) |
75/85 |
|||
8 |
rated short-circuit breaking current |
ka |
20/25 |
31.5 |
40 |
9 |
rated crurrent |
a |
630 1250 |
630/1250 |
1250/1600 |
1600/2000 |
2000/2500 |
||||
2500/3150 |
3150/4000 |
||||
10 |
rated thermal stability of current(rms) |
ka |
20/25 |
31.5 |
40 |
11 |
dynamic stability rated current(peak) |
ka |
63 |
80 |
100 |
12 |
rated short-circuit closing current(peak) |
ka |
63 |
80 |
100 |
13 |
rated operating sequence |
|
o-0.3s-co-180s-co o-180s-co-180s-co |
||
14 |
rated a single/back-to-back electric current breaking device group |
a |
630/400 800/400(40ka) |
||
15 |
mechanical life |
times |
10000 |