Audited Supplier
ZW8-12 (G)
High Voltage Circuit Breakers
Manual Type and Energy-Storage Type
Normal Type Circuit Breaker
Vacuum
Fixed
Vcb
Circuit Breaker
Break Load Current, Over-Load Current
ISO9001-2000
<1000m
-40oc ~ +45oc
25K
34m/S
DGG
Export Box
China
8504311000
Product Description
Our factory
We are professional manufacturer of current transformer ,voltage transformer, Vacuum Circuit Breakers/Recloser,Isolation switches,Dropout Fuse Cut-out,Lightning Arresters,High and Low Voltage Cabinets,Metering Devices,Power Distribution Transformers etc.
GENERAL
MODEL DESCRIPTION
USAGE: ENVIRONMENTAL CONDITION
☆ Ceramic vacuum arc extinguishing chamber is adopted, with strong arc extinguishing ability and short-circuit breaking ability;
☆ It has the advantages of being explosion-proof, anti-condensation, anti-pollution, and no environmental impact
☆Air silicone rubber and engineering plastic composite insulation are adopted to avoid the possibility of insulation accidents caused by oil deterioration in oil insulation;
☆ The body can be equipped with an isolating switch to form a "combined electrical apparatus" with obvious fracture. The user can choose to use a silicone rubber insulating sheath on the isolating switch. The sheath has the advantages of rain, snow, sand, and strong resistance to pollution and corrosion, which can effectively improve the anti-freezing and anti-oxidation ability of the isolating switch;
☆ It can realize three-stage protection, zero sequence grounding protection, reclosing, and remote communication.
MAIN TECHNICAL PARAMETERS
OUTLINE AND INSTALLATION DIMENSION
Test Reports
All products have undergone professional testing and certification.
Our Customer
Our customers are located all over the world.
Photos of Product
We are professional manufacturer of current transformer ,voltage transformer, Vacuum Circuit Breakers/Recloser,Isolation switches,Dropout Fuse Cut-out,Lightning Arresters,High and Low Voltage Cabinets,Metering Devices,Power Distribution Transformers etc.
GENERAL
ZW8-12 (G) series outdoor high-voltage AC intelligent vacuum circuit breaker (hereinafter referred to as "circuit breaker only") is applicable to the three-phase power system with three-phase AC 50Hz and voltage of 12kV. It is used for breaking and closing load currents. It has overload and short-circuit protection, definite time-delay protection, and an automatic reclosing function, and can also be equipped with a lightning arrester or isolating switch according to user needs.
The intelligent circuit breaker meets the requirements of GB / T 1984-2014 high voltage AC circuit breaker, DL / T 402-2016 high voltage AC circuit breaker, and DL / T 403-2000 technical conditions for ordering 12kV ~ 40.5kV high voltage vacuum circuit breaker and DL / T 721-2013 remote terminal of the distribution automation system.
The intelligent circuit breaker meets the requirements of GB / T 1984-2014 high voltage AC circuit breaker, DL / T 402-2016 high voltage AC circuit breaker, and DL / T 403-2000 technical conditions for ordering 12kV ~ 40.5kV high voltage vacuum circuit breaker and DL / T 721-2013 remote terminal of the distribution automation system.
MODEL DESCRIPTION
USAGE: ENVIRONMENTAL CONDITION
- Altitude: ≤ 1000m, If the altitude is higher than 1000m, the rated insulation level shall be corrected accordingly.
- Ambient temperature: -40oC ~ +45oC,
- Maximum daily temperature difference: 25K
- Humidity: Average daily relative humidity: 95%, average monthly relative humidity: 90%.
- Sunshine intensity: not more than 0.1W/cm2
- Wind Speed: 34m/s
- Wind pressure: 700Pa
- Pollution level: e - level
- Icing thickness: Not more than 10mm
- Resistance to floor drain: horizontal acceleration 0.3g, vertical acceleration 0.2g
☆ Ceramic vacuum arc extinguishing chamber is adopted, with strong arc extinguishing ability and short-circuit breaking ability;
☆ It has the advantages of being explosion-proof, anti-condensation, anti-pollution, and no environmental impact
☆Air silicone rubber and engineering plastic composite insulation are adopted to avoid the possibility of insulation accidents caused by oil deterioration in oil insulation;
☆ The body can be equipped with an isolating switch to form a "combined electrical apparatus" with obvious fracture. The user can choose to use a silicone rubber insulating sheath on the isolating switch. The sheath has the advantages of rain, snow, sand, and strong resistance to pollution and corrosion, which can effectively improve the anti-freezing and anti-oxidation ability of the isolating switch;
☆ It can realize three-stage protection, zero sequence grounding protection, reclosing, and remote communication.
MAIN TECHNICAL PARAMETERS
| No. | Item | Unit | Data | ||
| 1 | Rated frequency | Hz | 50 | ||
| 2 | Rated voltage | kV | 12 | ||
| 3 | Rated current | A | 630 / 1250 | ||
| 4 | Rated short-time power frequency withstand voltage | Interphase, to earth(wet) | kV/min | 34/1 | |
| Interphase, to earth(dry) | 42/1 | ||||
| Fracture (dry) | 48/1 | ||||
| Secondary circuit to earth | 2/1 | ||||
| 5 | Rated lightning impulse withstand voltage | Interphase, to earth | kV | 75 | |
| Fracture | 85 | ||||
| 6 | Rated short-time withstand current and duration | kA/s | 20/4 25/4 | ||
| 7 | Rated Short-circuit breaking current(Effective value) | kA | 20 / 25 | ||
| 8 | Rated short-circuit making current(peak) | 50 / 63 | |||
| 9 | Rated Peak-withstand current | 50 / 63 | |||
| 10 | Main circuit resistance | Without Isolation Switch | μΩ | not less than 120 | |
| With Isolation Switch | not less than 200 | ||||
| 11 | Rated Short-circuit breaking current breaking times | Times | 30 | ||
| 12 | Rated operating voltage and Rated Voltage for auxiliary(control) circuit | V | AC/DC220 DC48, DC24 | ||
| 13 | Mechanical life | Times | 10000 | ||
| Note: If the altitude is over 1000m, the rated insulation level should be modified as appropriate. | |||||
OUTLINE AND INSTALLATION DIMENSION
All products have undergone professional testing and certification.
Our CustomerOur customers are located all over the world.
Photos of Product
