It is designed and developed by our own company by bringing in international advanced technology,considering our own country's specific power supply. It performances meet IEC420 《AC H.V. Load Switch with Fuse》(1990 Edition) and GB3804 《3-63kV AC H.V. Load Switch》 after strict test and long - time operating. Compared to the product of the kind in the foreign country,its technical parameter has reached the international level with the featrues of small volume and light weight.can be used in package substation and ring network cebin. It is used widely in 12kV distribution network to protect the equipment against working wihout phase.
The success of the product fills the domestic gap,with functions of switch、isolating and earthing.
Use
It is used inthe network of 50Hz rated voltage 6-12kV for breaking load、over-load and short-circuit current. It is equipped with CS6-I type handle operating mechanism.it is for the CS handle mechanism.
Type meaning
Service condition
1、The altitude does not exceed 1000m.
2、The ambient air temperature:Max.:+40℃ .Min.:-10℃ .
3、The relatire humidity of air.diaily average ≤ 90%.monthly average ≤ 95% (temperature: 25 ℃).
4、The ambient air should not be obviously polluted by corrosivity and the flammability gas. etc.
5、The working sisuation without frequent violent.
Technical parameter
| Name |
Unit |
Pasrameter |
| Rated voltage |
kV |
12 |
| Max. working voltage |
kV |
12.7 |
| Rated frequency |
Hz |
50 |
| Rated current |
A |
400 630 |
| Rated short-time withstand current |
kA/s |
12.5/4 20/2 |
| Rated peak withstand current |
kA |
31.5 50 |
| Rated short-circuit switch-off current |
A |
400 630 |
| Rated power load switch -off current |
A |
400 630 |
| 5% rated power load switch-off current |
A |
20 31.5 |
| Rated capacity switch-off current |
A |
10 |
| Rated inductance switch-off current |
A |
40 |
| Rated transfer current |
kA |
1.3 |
| 1min power frequency withstand voltage to ground、interphase/isolation break |
kV |
12/48 |
| Lighting impulse resisting voltage (peak) to ground、interphase/isolation break |
kV |
75/85 |