1.Overview
*The ZW8-12 series of outdoor high-voltage vacuum circuit breaker rated voltage 12kV, three-phase AC 50Hz outdoor high-voltage switch equipment,mainly used for breaking and making of rural power network,city networkand small power system load current, overload current,short circuit current. The overall structure of the product for the three-phase common box type, three-phase vacuum arc extinguish chamber inside the tank, using SMC insulation material and insulation and insulation to ground,reliable performance,high insulating strength.
*ZW812G is composed of ZW8-12 breaker and isolating knife assembly,called the combination of circuit breaker,and can be used as switches ,can also be a self-contained power supply,has an internal PT and external PT
* The actuator of this series of products for CT23 spring actuator ,divided into electric and manual.
* Maine features:The product has many advantages such as small size, light weight, convenient operation, reliable operation, pollution-free, and maintenance-free.
2.Use environment
1).Ambient temperature: not higher than +40 °C, not less than -40°C
2). Altitude: not exceed 2000m.
3). Relative humidity: daily average of not more than 95%, month average of not more than 90%.saturated vapor pressure daily average of not more than 2.2 × 103MPa, month average not more than 1.8 × 103MPa
4). Earthquake intensity: not more than eight.
5). No fire, explosion hazard, serious filthy, chemical corrosion, as well as places of intense vibration
3.Technical datasheet
| Item |
Description |
Unit |
Data |
|
| 1 |
Rated voltage |
KV |
12 |
|
| 2 |
Rated current |
A |
630(1250) |
|
| 3 |
Rated short circuit breaking current |
KA |
20/25/31.5 |
|
| 4 |
Rated short circuit making current |
KA |
16/31.5/50 |
|
| 5 |
Rated peak withstand current |
KA |
16/31.5/50 |
|
| 6 |
4S Rated withstand current |
KA |
6.3/12.5/20 |
|
| 7 |
Rated insulation level |
frequency withstand voltage |
|
42 |
|
| Impulse withstand voltage |
75 |
|
| 8 |
Rated operating sequence |
|
O-0.3s-CO-180S-CO |
|
| 9 |
Mechanical life |
Times |
10000 |
|
| 10 |
Rated short circuit current breaking time |
Times |
30 |
|
| 11 |
Rated close brake voltage of operating machine |
V |
AC DC110,220 |
|
| 12 |
Rated break brake voltage of operating machine |
V |
AC DC110,220 |
|
| 13 |
Contact stroke |
mm |
11±1 |
|
| 14 |
Exceed range(the compress length of contact spring) |
mm |
3.5±0.5 |
|
| 15 |
Different period of three-phase break and close break |
ms |
≤2 |
|
| 16 |
The jump time of contact close break |
ms |
≤2 |
|
| 17 |
Average break speed |
m/s |
0.9~1.5 |
|
| 18 |
Average closing speed |
m/s |
0.4~0.8 |
|
| 19 |
Closing time |
s |
0.1 |
|
| 20 |
Contacts limit |
mm |
3 |
|
4.Dimensions drawing
COMPANY PROFILE:
AN HUANG isa modern company of professional design and manufacturer of 3.6kV to 40.5kV Medium Voltage cable accessories, electric components and whole set cabinet Subsidiaries:Anhuang Electric Power Technology Co.,Ltd
Zhejiang Anhuang Imp & Exp. Co .. Ltd. We provide high quality, low cost products for utility systems worldwide
Company constantly introducing new technology,newcraft, the product structure constantly improved.Our Professional
production testing equipment.special production technology and professional service team can satisfy the customers demand.
Our professioal engineers,technicansand managers team always keep our promise:ANHUANG is not only provide cost-effective high quality products.but also provide high quality, efficient, fast service and technical support to ensure customers' require.
Our company obtained international quality management system ccertification for ISO9001,ISO1401,OHSAS18001.
Our company adhenring to the "safety electricity, forever brilliant " as our enterprise's humanism. Willing to work with you hand in hand to build better future.
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